From 68cd15af63908b6c6960e4c2846e152b7f82e3a0 Mon Sep 17 00:00:00 2001
From: bigsheeper <yihao.dai@zilliz.com>
Date: Wed, 27 Jan 2021 14:41:56 +0800
Subject: [PATCH] Get index info from master

Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
---
 configs/advanced/data_service.yaml         |   2 +-
 internal/core/src/pb/milvus.pb.cc          | 331 ++++++++++++---------
 internal/core/src/pb/milvus.pb.h           |  61 ++++
 internal/dataservice/cluster.go            |   8 +-
 internal/distributed/querynode/service.go  |  13 +
 internal/masterservice/meta_table.go       |  18 +-
 internal/masterservice/task.go             |   8 +
 internal/proto/milvus.proto                |   1 +
 internal/proto/milvuspb/milvus.pb.go       | 231 +++++++-------
 internal/proxyservice/nodeid_allocator.go  |  21 +-
 internal/querynode/query_node.go           |  21 +-
 internal/querynode/segment_manager.go      |  53 ++--
 internal/querynode/segment_manager_test.go |   2 +-
 internal/querynode/type_def.go             |   6 +
 14 files changed, 490 insertions(+), 286 deletions(-)

diff --git a/configs/advanced/data_service.yaml b/configs/advanced/data_service.yaml
index 49c405e79..bc6b41f7e 100644
--- a/configs/advanced/data_service.yaml
+++ b/configs/advanced/data_service.yaml
@@ -10,4 +10,4 @@ dataservice:
     # old name: segmentExpireDuration: 2000
     IDAssignExpiration: 2000 # ms
   insertChannelNumPerCollection: 4
-  dataNodeNum: 2
\ No newline at end of file
+  dataNodeNum: 1
\ No newline at end of file
diff --git a/internal/core/src/pb/milvus.pb.cc b/internal/core/src/pb/milvus.pb.cc
index b31aa5e86..1a75c3937 100644
--- a/internal/core/src/pb/milvus.pb.cc
+++ b/internal/core/src/pb/milvus.pb.cc
@@ -373,9 +373,10 @@ static void InitDefaultsscc_info_DescribeSegmentResponse_milvus_2eproto() {
   ::milvus::proto::milvus::DescribeSegmentResponse::InitAsDefaultInstance();
 }
 
-::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_DescribeSegmentResponse_milvus_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsscc_info_DescribeSegmentResponse_milvus_2eproto}, {
-      &scc_info_Status_common_2eproto.base,}};
+::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<2> scc_info_DescribeSegmentResponse_milvus_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 2, InitDefaultsscc_info_DescribeSegmentResponse_milvus_2eproto}, {
+      &scc_info_Status_common_2eproto.base,
+      &scc_info_IndexDescription_milvus_2eproto.base,}};
 
 static void InitDefaultsscc_info_DropCollectionRequest_milvus_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
@@ -1011,6 +1012,7 @@ const ::PROTOBUF_NAMESPACE_ID::uint32 TableStruct_milvus_2eproto::offsets[] PROT
   ~0u,  // no _weak_field_map_
   PROTOBUF_FIELD_OFFSET(::milvus::proto::milvus::DescribeSegmentResponse, status_),
   PROTOBUF_FIELD_OFFSET(::milvus::proto::milvus::DescribeSegmentResponse, indexid_),
+  PROTOBUF_FIELD_OFFSET(::milvus::proto::milvus::DescribeSegmentResponse, index_description_),
   ~0u,  // no _has_bits_
   PROTOBUF_FIELD_OFFSET(::milvus::proto::milvus::ShowSegmentRequest, _internal_metadata_),
   ~0u,  // no _extensions_
@@ -1177,23 +1179,23 @@ static const ::PROTOBUF_NAMESPACE_ID::internal::MigrationSchema schemas[] PROTOB
   { 170, -1, sizeof(::milvus::proto::milvus::ShowPartitionResponse)},
   { 178, -1, sizeof(::milvus::proto::milvus::DescribeSegmentRequest)},
   { 186, -1, sizeof(::milvus::proto::milvus::DescribeSegmentResponse)},
-  { 193, -1, sizeof(::milvus::proto::milvus::ShowSegmentRequest)},
-  { 201, -1, sizeof(::milvus::proto::milvus::ShowSegmentResponse)},
-  { 208, -1, sizeof(::milvus::proto::milvus::CreateIndexRequest)},
-  { 218, -1, sizeof(::milvus::proto::milvus::DescribeIndexRequest)},
-  { 228, -1, sizeof(::milvus::proto::milvus::IndexDescription)},
-  { 235, -1, sizeof(::milvus::proto::milvus::DescribeIndexResponse)},
-  { 242, -1, sizeof(::milvus::proto::milvus::IndexStateRequest)},
-  { 252, -1, sizeof(::milvus::proto::milvus::IndexStateResponse)},
-  { 259, -1, sizeof(::milvus::proto::milvus::InsertRequest)},
-  { 270, -1, sizeof(::milvus::proto::milvus::InsertResponse)},
-  { 278, -1, sizeof(::milvus::proto::milvus::PlaceholderValue)},
-  { 286, -1, sizeof(::milvus::proto::milvus::PlaceholderGroup)},
-  { 292, -1, sizeof(::milvus::proto::milvus::SearchRequest)},
-  { 303, -1, sizeof(::milvus::proto::milvus::Hits)},
-  { 311, -1, sizeof(::milvus::proto::milvus::SearchResults)},
-  { 318, -1, sizeof(::milvus::proto::milvus::FlushRequest)},
-  { 326, -1, sizeof(::milvus::proto::milvus::RegisterLinkResponse)},
+  { 194, -1, sizeof(::milvus::proto::milvus::ShowSegmentRequest)},
+  { 202, -1, sizeof(::milvus::proto::milvus::ShowSegmentResponse)},
+  { 209, -1, sizeof(::milvus::proto::milvus::CreateIndexRequest)},
+  { 219, -1, sizeof(::milvus::proto::milvus::DescribeIndexRequest)},
+  { 229, -1, sizeof(::milvus::proto::milvus::IndexDescription)},
+  { 236, -1, sizeof(::milvus::proto::milvus::DescribeIndexResponse)},
+  { 243, -1, sizeof(::milvus::proto::milvus::IndexStateRequest)},
+  { 253, -1, sizeof(::milvus::proto::milvus::IndexStateResponse)},
+  { 260, -1, sizeof(::milvus::proto::milvus::InsertRequest)},
+  { 271, -1, sizeof(::milvus::proto::milvus::InsertResponse)},
+  { 279, -1, sizeof(::milvus::proto::milvus::PlaceholderValue)},
+  { 287, -1, sizeof(::milvus::proto::milvus::PlaceholderGroup)},
+  { 293, -1, sizeof(::milvus::proto::milvus::SearchRequest)},
+  { 304, -1, sizeof(::milvus::proto::milvus::Hits)},
+  { 312, -1, sizeof(::milvus::proto::milvus::SearchResults)},
+  { 319, -1, sizeof(::milvus::proto::milvus::FlushRequest)},
+  { 327, -1, sizeof(::milvus::proto::milvus::RegisterLinkResponse)},
 };
 
 static ::PROTOBUF_NAMESPACE_ID::Message const * const file_default_instances[] = {
@@ -1310,120 +1312,122 @@ const char descriptor_table_protodef_milvus_2eproto[] PROTOBUF_SECTION_VARIABLE(
   "(\t\022\024\n\014partitionIDs\030\003 \003(\003\"m\n\026DescribeSegm"
   "entRequest\022*\n\004base\030\001 \001(\0132\034.milvus.proto."
   "common.MsgBase\022\024\n\014collectionID\030\002 \001(\003\022\021\n\t"
-  "segmentID\030\003 \001(\003\"W\n\027DescribeSegmentRespon"
-  "se\022+\n\006status\030\001 \001(\0132\033.milvus.proto.common"
-  ".Status\022\017\n\007indexID\030\002 \001(\003\"k\n\022ShowSegmentR"
-  "equest\022*\n\004base\030\001 \001(\0132\034.milvus.proto.comm"
-  "on.MsgBase\022\024\n\014collectionID\030\002 \001(\003\022\023\n\013part"
-  "itionID\030\003 \001(\003\"V\n\023ShowSegmentResponse\022+\n\006"
-  "status\030\001 \001(\0132\033.milvus.proto.common.Statu"
-  "s\022\022\n\nsegmentIDs\030\002 \003(\003\"\267\001\n\022CreateIndexReq"
-  "uest\022*\n\004base\030\001 \001(\0132\034.milvus.proto.common"
-  ".MsgBase\022\017\n\007db_name\030\002 \001(\t\022\027\n\017collection_"
-  "name\030\003 \001(\t\022\022\n\nfield_name\030\004 \001(\t\0227\n\014extra_"
-  "params\030\005 \003(\0132!.milvus.proto.common.KeyVa"
-  "luePair\"\224\001\n\024DescribeIndexRequest\022*\n\004base"
-  "\030\001 \001(\0132\034.milvus.proto.common.MsgBase\022\017\n\007"
-  "db_name\030\002 \001(\t\022\027\n\017collection_name\030\003 \001(\t\022\022"
-  "\n\nfield_name\030\004 \001(\t\022\022\n\nindex_name\030\005 \001(\t\"Y"
-  "\n\020IndexDescription\022\022\n\nindex_name\030\001 \001(\t\0221"
-  "\n\006params\030\002 \003(\0132!.milvus.proto.common.Key"
-  "ValuePair\"\207\001\n\025DescribeIndexResponse\022+\n\006s"
+  "segmentID\030\003 \001(\003\"\231\001\n\027DescribeSegmentRespo"
+  "nse\022+\n\006status\030\001 \001(\0132\033.milvus.proto.commo"
+  "n.Status\022\017\n\007indexID\030\002 \001(\003\022@\n\021index_descr"
+  "iption\030\003 \001(\0132%.milvus.proto.milvus.Index"
+  "Description\"k\n\022ShowSegmentRequest\022*\n\004bas"
+  "e\030\001 \001(\0132\034.milvus.proto.common.MsgBase\022\024\n"
+  "\014collectionID\030\002 \001(\003\022\023\n\013partitionID\030\003 \001(\003"
+  "\"V\n\023ShowSegmentResponse\022+\n\006status\030\001 \001(\0132"
+  "\033.milvus.proto.common.Status\022\022\n\nsegmentI"
+  "Ds\030\002 \003(\003\"\267\001\n\022CreateIndexRequest\022*\n\004base\030"
+  "\001 \001(\0132\034.milvus.proto.common.MsgBase\022\017\n\007d"
+  "b_name\030\002 \001(\t\022\027\n\017collection_name\030\003 \001(\t\022\022\n"
+  "\nfield_name\030\004 \001(\t\0227\n\014extra_params\030\005 \003(\0132"
+  "!.milvus.proto.common.KeyValuePair\"\224\001\n\024D"
+  "escribeIndexRequest\022*\n\004base\030\001 \001(\0132\034.milv"
+  "us.proto.common.MsgBase\022\017\n\007db_name\030\002 \001(\t"
+  "\022\027\n\017collection_name\030\003 \001(\t\022\022\n\nfield_name\030"
+  "\004 \001(\t\022\022\n\nindex_name\030\005 \001(\t\"Y\n\020IndexDescri"
+  "ption\022\022\n\nindex_name\030\001 \001(\t\0221\n\006params\030\002 \003("
+  "\0132!.milvus.proto.common.KeyValuePair\"\207\001\n"
+  "\025DescribeIndexResponse\022+\n\006status\030\001 \001(\0132\033"
+  ".milvus.proto.common.Status\022A\n\022index_des"
+  "criptions\030\002 \003(\0132%.milvus.proto.milvus.In"
+  "dexDescription\"\221\001\n\021IndexStateRequest\022*\n\004"
+  "base\030\001 \001(\0132\034.milvus.proto.common.MsgBase"
+  "\022\017\n\007db_name\030\002 \001(\t\022\027\n\017collection_name\030\003 \001"
+  "(\t\022\022\n\nfield_name\030\004 \001(\t\022\022\n\nindex_name\030\005 \001"
+  "(\t\"q\n\022IndexStateResponse\022+\n\006status\030\001 \001(\013"
+  "2\033.milvus.proto.common.Status\022.\n\005state\030\002"
+  " \001(\0162\037.milvus.proto.common.IndexState\"\275\001"
+  "\n\rInsertRequest\022*\n\004base\030\001 \001(\0132\034.milvus.p"
+  "roto.common.MsgBase\022\017\n\007db_name\030\002 \001(\t\022\027\n\017"
+  "collection_name\030\003 \001(\t\022\026\n\016partition_name\030"
+  "\004 \001(\t\022+\n\010row_data\030\005 \003(\0132\031.milvus.proto.c"
+  "ommon.Blob\022\021\n\thash_keys\030\006 \003(\r\"e\n\016InsertR"
+  "esponse\022+\n\006status\030\001 \001(\0132\033.milvus.proto.c"
+  "ommon.Status\022\023\n\013rowID_begin\030\002 \001(\003\022\021\n\trow"
+  "ID_end\030\003 \001(\003\"c\n\020PlaceholderValue\022\013\n\003tag\030"
+  "\001 \001(\t\0222\n\004type\030\002 \001(\0162$.milvus.proto.milvu"
+  "s.PlaceholderType\022\016\n\006values\030\003 \003(\014\"O\n\020Pla"
+  "ceholderGroup\022;\n\014placeholders\030\001 \003(\0132%.mi"
+  "lvus.proto.milvus.PlaceholderValue\"\246\001\n\rS"
+  "earchRequest\022*\n\004base\030\001 \001(\0132\034.milvus.prot"
+  "o.common.MsgBase\022\017\n\007db_name\030\002 \001(\t\022\027\n\017col"
+  "lection_name\030\003 \001(\t\022\027\n\017partition_names\030\004 "
+  "\003(\t\022\013\n\003dsl\030\005 \001(\t\022\031\n\021placeholder_group\030\006 "
+  "\001(\014\"5\n\004Hits\022\013\n\003IDs\030\001 \003(\003\022\020\n\010row_data\030\002 \003"
+  "(\014\022\016\n\006scores\030\003 \003(\002\"J\n\rSearchResults\022+\n\006s"
   "tatus\030\001 \001(\0132\033.milvus.proto.common.Status"
-  "\022A\n\022index_descriptions\030\002 \003(\0132%.milvus.pr"
-  "oto.milvus.IndexDescription\"\221\001\n\021IndexSta"
-  "teRequest\022*\n\004base\030\001 \001(\0132\034.milvus.proto.c"
-  "ommon.MsgBase\022\017\n\007db_name\030\002 \001(\t\022\027\n\017collec"
-  "tion_name\030\003 \001(\t\022\022\n\nfield_name\030\004 \001(\t\022\022\n\ni"
-  "ndex_name\030\005 \001(\t\"q\n\022IndexStateResponse\022+\n"
-  "\006status\030\001 \001(\0132\033.milvus.proto.common.Stat"
-  "us\022.\n\005state\030\002 \001(\0162\037.milvus.proto.common."
-  "IndexState\"\275\001\n\rInsertRequest\022*\n\004base\030\001 \001"
-  "(\0132\034.milvus.proto.common.MsgBase\022\017\n\007db_n"
-  "ame\030\002 \001(\t\022\027\n\017collection_name\030\003 \001(\t\022\026\n\016pa"
-  "rtition_name\030\004 \001(\t\022+\n\010row_data\030\005 \003(\0132\031.m"
-  "ilvus.proto.common.Blob\022\021\n\thash_keys\030\006 \003"
-  "(\r\"e\n\016InsertResponse\022+\n\006status\030\001 \001(\0132\033.m"
-  "ilvus.proto.common.Status\022\023\n\013rowID_begin"
-  "\030\002 \001(\003\022\021\n\trowID_end\030\003 \001(\003\"c\n\020Placeholder"
-  "Value\022\013\n\003tag\030\001 \001(\t\0222\n\004type\030\002 \001(\0162$.milvu"
-  "s.proto.milvus.PlaceholderType\022\016\n\006values"
-  "\030\003 \003(\014\"O\n\020PlaceholderGroup\022;\n\014placeholde"
-  "rs\030\001 \003(\0132%.milvus.proto.milvus.Placehold"
-  "erValue\"\246\001\n\rSearchRequest\022*\n\004base\030\001 \001(\0132"
-  "\034.milvus.proto.common.MsgBase\022\017\n\007db_name"
-  "\030\002 \001(\t\022\027\n\017collection_name\030\003 \001(\t\022\027\n\017parti"
-  "tion_names\030\004 \003(\t\022\013\n\003dsl\030\005 \001(\t\022\031\n\021placeho"
-  "lder_group\030\006 \001(\014\"5\n\004Hits\022\013\n\003IDs\030\001 \003(\003\022\020\n"
-  "\010row_data\030\002 \003(\014\022\016\n\006scores\030\003 \003(\002\"J\n\rSearc"
-  "hResults\022+\n\006status\030\001 \001(\0132\033.milvus.proto."
-  "common.Status\022\014\n\004hits\030\002 \003(\014\"d\n\014FlushRequ"
-  "est\022*\n\004base\030\001 \001(\0132\034.milvus.proto.common."
-  "MsgBase\022\017\n\007db_name\030\002 \001(\t\022\027\n\017collection_n"
-  "ame\030\003 \001(\t\"r\n\024RegisterLinkResponse\022-\n\007add"
-  "ress\030\001 \001(\0132\034.milvus.proto.common.Address"
-  "\022+\n\006status\030\002 \001(\0132\033.milvus.proto.common.S"
-  "tatus*@\n\017PlaceholderType\022\010\n\004NONE\020\000\022\021\n\rVE"
-  "CTOR_BINARY\020d\022\020\n\014VECTOR_FLOAT\020e2\357\020\n\rMilv"
-  "usService\022_\n\020CreateCollection\022,.milvus.p"
-  "roto.milvus.CreateCollectionRequest\032\033.mi"
-  "lvus.proto.common.Status\"\000\022[\n\016DropCollec"
-  "tion\022*.milvus.proto.milvus.DropCollectio"
-  "nRequest\032\033.milvus.proto.common.Status\"\000\022"
-  "_\n\rHasCollection\022).milvus.proto.milvus.H"
-  "asCollectionRequest\032!.milvus.proto.milvu"
-  "s.BoolResponse\"\000\022[\n\016LoadCollection\022*.mil"
-  "vus.proto.milvus.LoadCollectionRequest\032\033"
-  ".milvus.proto.common.Status\"\000\022a\n\021Release"
-  "Collection\022-.milvus.proto.milvus.Release"
-  "CollectionRequest\032\033.milvus.proto.common."
-  "Status\"\000\022w\n\022DescribeCollection\022..milvus."
-  "proto.milvus.DescribeCollectionRequest\032/"
-  ".milvus.proto.milvus.DescribeCollectionR"
-  "esponse\"\000\022v\n\027GetCollectionStatistics\022+.m"
-  "ilvus.proto.milvus.CollectionStatsReques"
-  "t\032,.milvus.proto.milvus.CollectionStatsR"
-  "esponse\"\000\022l\n\017ShowCollections\022*.milvus.pr"
-  "oto.milvus.ShowCollectionRequest\032+.milvu"
-  "s.proto.milvus.ShowCollectionResponse\"\000\022"
-  "]\n\017CreatePartition\022+.milvus.proto.milvus"
-  ".CreatePartitionRequest\032\033.milvus.proto.c"
-  "ommon.Status\"\000\022Y\n\rDropPartition\022).milvus"
-  ".proto.milvus.DropPartitionRequest\032\033.mil"
-  "vus.proto.common.Status\"\000\022]\n\014HasPartitio"
-  "n\022(.milvus.proto.milvus.HasPartitionRequ"
-  "est\032!.milvus.proto.milvus.BoolResponse\"\000"
-  "\022Y\n\016LoadPartitions\022(.milvus.proto.milvus"
-  ".LoadPartitonRequest\032\033.milvus.proto.comm"
-  "on.Status\"\000\022`\n\021ReleasePartitions\022,.milvu"
-  "s.proto.milvus.ReleasePartitionRequest\032\033"
-  ".milvus.proto.common.Status\"\000\022s\n\026GetPart"
-  "itionStatistics\022*.milvus.proto.milvus.Pa"
-  "rtitionStatsRequest\032+.milvus.proto.milvu"
-  "s.PartitionStatsResponse\"\000\022i\n\016ShowPartit"
-  "ions\022).milvus.proto.milvus.ShowPartition"
-  "Request\032*.milvus.proto.milvus.ShowPartit"
-  "ionResponse\"\000\022U\n\013CreateIndex\022\'.milvus.pr"
-  "oto.milvus.CreateIndexRequest\032\033.milvus.p"
-  "roto.common.Status\"\000\022h\n\rDescribeIndex\022)."
-  "milvus.proto.milvus.DescribeIndexRequest"
-  "\032*.milvus.proto.milvus.DescribeIndexResp"
-  "onse\"\000\022b\n\rGetIndexState\022&.milvus.proto.m"
-  "ilvus.IndexStateRequest\032\'.milvus.proto.m"
-  "ilvus.IndexStateResponse\"\000\022S\n\006Insert\022\".m"
-  "ilvus.proto.milvus.InsertRequest\032#.milvu"
-  "s.proto.milvus.InsertResponse\"\000\022R\n\006Searc"
-  "h\022\".milvus.proto.milvus.SearchRequest\032\"."
-  "milvus.proto.milvus.SearchResults\"\000\022I\n\005F"
-  "lush\022!.milvus.proto.milvus.FlushRequest\032"
-  "\033.milvus.proto.common.Status\"\000\022Q\n\014GetDdC"
-  "hannel\022\032.milvus.proto.common.Empty\032#.mil"
-  "vus.proto.milvus.StringResponse\"\0002g\n\014Pro"
-  "xyService\022W\n\014RegisterLink\022\032.milvus.proto"
-  ".common.Empty\032).milvus.proto.milvus.Regi"
-  "sterLinkResponse\"\000BBZ@github.com/zillizt"
-  "ech/milvus-distributed/internal/proto/mi"
-  "lvuspbb\006proto3"
+  "\022\014\n\004hits\030\002 \003(\014\"d\n\014FlushRequest\022*\n\004base\030\001"
+  " \001(\0132\034.milvus.proto.common.MsgBase\022\017\n\007db"
+  "_name\030\002 \001(\t\022\027\n\017collection_name\030\003 \001(\t\"r\n\024"
+  "RegisterLinkResponse\022-\n\007address\030\001 \001(\0132\034."
+  "milvus.proto.common.Address\022+\n\006status\030\002 "
+  "\001(\0132\033.milvus.proto.common.Status*@\n\017Plac"
+  "eholderType\022\010\n\004NONE\020\000\022\021\n\rVECTOR_BINARY\020d"
+  "\022\020\n\014VECTOR_FLOAT\020e2\357\020\n\rMilvusService\022_\n\020"
+  "CreateCollection\022,.milvus.proto.milvus.C"
+  "reateCollectionRequest\032\033.milvus.proto.co"
+  "mmon.Status\"\000\022[\n\016DropCollection\022*.milvus"
+  ".proto.milvus.DropCollectionRequest\032\033.mi"
+  "lvus.proto.common.Status\"\000\022_\n\rHasCollect"
+  "ion\022).milvus.proto.milvus.HasCollectionR"
+  "equest\032!.milvus.proto.milvus.BoolRespons"
+  "e\"\000\022[\n\016LoadCollection\022*.milvus.proto.mil"
+  "vus.LoadCollectionRequest\032\033.milvus.proto"
+  ".common.Status\"\000\022a\n\021ReleaseCollection\022-."
+  "milvus.proto.milvus.ReleaseCollectionReq"
+  "uest\032\033.milvus.proto.common.Status\"\000\022w\n\022D"
+  "escribeCollection\022..milvus.proto.milvus."
+  "DescribeCollectionRequest\032/.milvus.proto"
+  ".milvus.DescribeCollectionResponse\"\000\022v\n\027"
+  "GetCollectionStatistics\022+.milvus.proto.m"
+  "ilvus.CollectionStatsRequest\032,.milvus.pr"
+  "oto.milvus.CollectionStatsResponse\"\000\022l\n\017"
+  "ShowCollections\022*.milvus.proto.milvus.Sh"
+  "owCollectionRequest\032+.milvus.proto.milvu"
+  "s.ShowCollectionResponse\"\000\022]\n\017CreatePart"
+  "ition\022+.milvus.proto.milvus.CreatePartit"
+  "ionRequest\032\033.milvus.proto.common.Status\""
+  "\000\022Y\n\rDropPartition\022).milvus.proto.milvus"
+  ".DropPartitionRequest\032\033.milvus.proto.com"
+  "mon.Status\"\000\022]\n\014HasPartition\022(.milvus.pr"
+  "oto.milvus.HasPartitionRequest\032!.milvus."
+  "proto.milvus.BoolResponse\"\000\022Y\n\016LoadParti"
+  "tions\022(.milvus.proto.milvus.LoadPartiton"
+  "Request\032\033.milvus.proto.common.Status\"\000\022`"
+  "\n\021ReleasePartitions\022,.milvus.proto.milvu"
+  "s.ReleasePartitionRequest\032\033.milvus.proto"
+  ".common.Status\"\000\022s\n\026GetPartitionStatisti"
+  "cs\022*.milvus.proto.milvus.PartitionStatsR"
+  "equest\032+.milvus.proto.milvus.PartitionSt"
+  "atsResponse\"\000\022i\n\016ShowPartitions\022).milvus"
+  ".proto.milvus.ShowPartitionRequest\032*.mil"
+  "vus.proto.milvus.ShowPartitionResponse\"\000"
+  "\022U\n\013CreateIndex\022\'.milvus.proto.milvus.Cr"
+  "eateIndexRequest\032\033.milvus.proto.common.S"
+  "tatus\"\000\022h\n\rDescribeIndex\022).milvus.proto."
+  "milvus.DescribeIndexRequest\032*.milvus.pro"
+  "to.milvus.DescribeIndexResponse\"\000\022b\n\rGet"
+  "IndexState\022&.milvus.proto.milvus.IndexSt"
+  "ateRequest\032\'.milvus.proto.milvus.IndexSt"
+  "ateResponse\"\000\022S\n\006Insert\022\".milvus.proto.m"
+  "ilvus.InsertRequest\032#.milvus.proto.milvu"
+  "s.InsertResponse\"\000\022R\n\006Search\022\".milvus.pr"
+  "oto.milvus.SearchRequest\032\".milvus.proto."
+  "milvus.SearchResults\"\000\022I\n\005Flush\022!.milvus"
+  ".proto.milvus.FlushRequest\032\033.milvus.prot"
+  "o.common.Status\"\000\022Q\n\014GetDdChannel\022\032.milv"
+  "us.proto.common.Empty\032#.milvus.proto.mil"
+  "vus.StringResponse\"\0002g\n\014ProxyService\022W\n\014"
+  "RegisterLink\022\032.milvus.proto.common.Empty"
+  "\032).milvus.proto.milvus.RegisterLinkRespo"
+  "nse\"\000BBZ@github.com/zilliztech/milvus-di"
+  "stributed/internal/proto/milvuspbb\006proto"
+  "3"
   ;
 static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_milvus_2eproto_deps[2] = {
   &::descriptor_table_common_2eproto,
@@ -1475,7 +1479,7 @@ static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_mil
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_milvus_2eproto_once;
 static bool descriptor_table_milvus_2eproto_initialized = false;
 const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_milvus_2eproto = {
-  &descriptor_table_milvus_2eproto_initialized, descriptor_table_protodef_milvus_2eproto, "milvus.proto", 7294,
+  &descriptor_table_milvus_2eproto_initialized, descriptor_table_protodef_milvus_2eproto, "milvus.proto", 7361,
   &descriptor_table_milvus_2eproto_once, descriptor_table_milvus_2eproto_sccs, descriptor_table_milvus_2eproto_deps, 41, 2,
   schemas, file_default_instances, TableStruct_milvus_2eproto::offsets,
   file_level_metadata_milvus_2eproto, 41, file_level_enum_descriptors_milvus_2eproto, file_level_service_descriptors_milvus_2eproto,
@@ -10669,16 +10673,23 @@ void DescribeSegmentRequest::InternalSwap(DescribeSegmentRequest* other) {
 void DescribeSegmentResponse::InitAsDefaultInstance() {
   ::milvus::proto::milvus::_DescribeSegmentResponse_default_instance_._instance.get_mutable()->status_ = const_cast< ::milvus::proto::common::Status*>(
       ::milvus::proto::common::Status::internal_default_instance());
+  ::milvus::proto::milvus::_DescribeSegmentResponse_default_instance_._instance.get_mutable()->index_description_ = const_cast< ::milvus::proto::milvus::IndexDescription*>(
+      ::milvus::proto::milvus::IndexDescription::internal_default_instance());
 }
 class DescribeSegmentResponse::_Internal {
  public:
   static const ::milvus::proto::common::Status& status(const DescribeSegmentResponse* msg);
+  static const ::milvus::proto::milvus::IndexDescription& index_description(const DescribeSegmentResponse* msg);
 };
 
 const ::milvus::proto::common::Status&
 DescribeSegmentResponse::_Internal::status(const DescribeSegmentResponse* msg) {
   return *msg->status_;
 }
+const ::milvus::proto::milvus::IndexDescription&
+DescribeSegmentResponse::_Internal::index_description(const DescribeSegmentResponse* msg) {
+  return *msg->index_description_;
+}
 void DescribeSegmentResponse::clear_status() {
   if (GetArenaNoVirtual() == nullptr && status_ != nullptr) {
     delete status_;
@@ -10699,6 +10710,11 @@ DescribeSegmentResponse::DescribeSegmentResponse(const DescribeSegmentResponse&
   } else {
     status_ = nullptr;
   }
+  if (from.has_index_description()) {
+    index_description_ = new ::milvus::proto::milvus::IndexDescription(*from.index_description_);
+  } else {
+    index_description_ = nullptr;
+  }
   indexid_ = from.indexid_;
   // @@protoc_insertion_point(copy_constructor:milvus.proto.milvus.DescribeSegmentResponse)
 }
@@ -10717,6 +10733,7 @@ DescribeSegmentResponse::~DescribeSegmentResponse() {
 
 void DescribeSegmentResponse::SharedDtor() {
   if (this != internal_default_instance()) delete status_;
+  if (this != internal_default_instance()) delete index_description_;
 }
 
 void DescribeSegmentResponse::SetCachedSize(int size) const {
@@ -10738,6 +10755,10 @@ void DescribeSegmentResponse::Clear() {
     delete status_;
   }
   status_ = nullptr;
+  if (GetArenaNoVirtual() == nullptr && index_description_ != nullptr) {
+    delete index_description_;
+  }
+  index_description_ = nullptr;
   indexid_ = PROTOBUF_LONGLONG(0);
   _internal_metadata_.Clear();
 }
@@ -10764,6 +10785,13 @@ const char* DescribeSegmentResponse::_InternalParse(const char* ptr, ::PROTOBUF_
           CHK_(ptr);
         } else goto handle_unusual;
         continue;
+      // .milvus.proto.milvus.IndexDescription index_description = 3;
+      case 3:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<::PROTOBUF_NAMESPACE_ID::uint8>(tag) == 26)) {
+          ptr = ctx->ParseMessage(mutable_index_description(), ptr);
+          CHK_(ptr);
+        } else goto handle_unusual;
+        continue;
       default: {
       handle_unusual:
         if ((tag & 7) == 4 || tag == 0) {
@@ -10818,6 +10846,17 @@ bool DescribeSegmentResponse::MergePartialFromCodedStream(
         break;
       }
 
+      // .milvus.proto.milvus.IndexDescription index_description = 3;
+      case 3: {
+        if (static_cast< ::PROTOBUF_NAMESPACE_ID::uint8>(tag) == (26 & 0xFF)) {
+          DO_(::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::ReadMessage(
+               input, mutable_index_description()));
+        } else {
+          goto handle_unusual;
+        }
+        break;
+      }
+
       default: {
       handle_unusual:
         if (tag == 0) {
@@ -10856,6 +10895,12 @@ void DescribeSegmentResponse::SerializeWithCachedSizes(
     ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::WriteInt64(2, this->indexid(), output);
   }
 
+  // .milvus.proto.milvus.IndexDescription index_description = 3;
+  if (this->has_index_description()) {
+    ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::WriteMessageMaybeToArray(
+      3, _Internal::index_description(this), output);
+  }
+
   if (_internal_metadata_.have_unknown_fields()) {
     ::PROTOBUF_NAMESPACE_ID::internal::WireFormat::SerializeUnknownFields(
         _internal_metadata_.unknown_fields(), output);
@@ -10881,6 +10926,13 @@ void DescribeSegmentResponse::SerializeWithCachedSizes(
     target = ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::WriteInt64ToArray(2, this->indexid(), target);
   }
 
+  // .milvus.proto.milvus.IndexDescription index_description = 3;
+  if (this->has_index_description()) {
+    target = ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::
+      InternalWriteMessageToArray(
+        3, _Internal::index_description(this), target);
+  }
+
   if (_internal_metadata_.have_unknown_fields()) {
     target = ::PROTOBUF_NAMESPACE_ID::internal::WireFormat::SerializeUnknownFieldsToArray(
         _internal_metadata_.unknown_fields(), target);
@@ -10909,6 +10961,13 @@ size_t DescribeSegmentResponse::ByteSizeLong() const {
         *status_);
   }
 
+  // .milvus.proto.milvus.IndexDescription index_description = 3;
+  if (this->has_index_description()) {
+    total_size += 1 +
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::MessageSize(
+        *index_description_);
+  }
+
   // int64 indexID = 2;
   if (this->indexid() != 0) {
     total_size += 1 +
@@ -10946,6 +11005,9 @@ void DescribeSegmentResponse::MergeFrom(const DescribeSegmentResponse& from) {
   if (from.has_status()) {
     mutable_status()->::milvus::proto::common::Status::MergeFrom(from.status());
   }
+  if (from.has_index_description()) {
+    mutable_index_description()->::milvus::proto::milvus::IndexDescription::MergeFrom(from.index_description());
+  }
   if (from.indexid() != 0) {
     set_indexid(from.indexid());
   }
@@ -10973,6 +11035,7 @@ void DescribeSegmentResponse::InternalSwap(DescribeSegmentResponse* other) {
   using std::swap;
   _internal_metadata_.Swap(&other->_internal_metadata_);
   swap(status_, other->status_);
+  swap(index_description_, other->index_description_);
   swap(indexid_, other->indexid_);
 }
 
diff --git a/internal/core/src/pb/milvus.pb.h b/internal/core/src/pb/milvus.pb.h
index f335f8a06..3f30ab6d1 100644
--- a/internal/core/src/pb/milvus.pb.h
+++ b/internal/core/src/pb/milvus.pb.h
@@ -4073,6 +4073,7 @@ class DescribeSegmentResponse :
 
   enum : int {
     kStatusFieldNumber = 1,
+    kIndexDescriptionFieldNumber = 3,
     kIndexIDFieldNumber = 2,
   };
   // .milvus.proto.common.Status status = 1;
@@ -4083,6 +4084,14 @@ class DescribeSegmentResponse :
   ::milvus::proto::common::Status* mutable_status();
   void set_allocated_status(::milvus::proto::common::Status* status);
 
+  // .milvus.proto.milvus.IndexDescription index_description = 3;
+  bool has_index_description() const;
+  void clear_index_description();
+  const ::milvus::proto::milvus::IndexDescription& index_description() const;
+  ::milvus::proto::milvus::IndexDescription* release_index_description();
+  ::milvus::proto::milvus::IndexDescription* mutable_index_description();
+  void set_allocated_index_description(::milvus::proto::milvus::IndexDescription* index_description);
+
   // int64 indexID = 2;
   void clear_indexid();
   ::PROTOBUF_NAMESPACE_ID::int64 indexid() const;
@@ -4094,6 +4103,7 @@ class DescribeSegmentResponse :
 
   ::PROTOBUF_NAMESPACE_ID::internal::InternalMetadataWithArena _internal_metadata_;
   ::milvus::proto::common::Status* status_;
+  ::milvus::proto::milvus::IndexDescription* index_description_;
   ::PROTOBUF_NAMESPACE_ID::int64 indexid_;
   mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
   friend struct ::TableStruct_milvus_2eproto;
@@ -10312,6 +10322,57 @@ inline void DescribeSegmentResponse::set_indexid(::PROTOBUF_NAMESPACE_ID::int64
   // @@protoc_insertion_point(field_set:milvus.proto.milvus.DescribeSegmentResponse.indexID)
 }
 
+// .milvus.proto.milvus.IndexDescription index_description = 3;
+inline bool DescribeSegmentResponse::has_index_description() const {
+  return this != internal_default_instance() && index_description_ != nullptr;
+}
+inline void DescribeSegmentResponse::clear_index_description() {
+  if (GetArenaNoVirtual() == nullptr && index_description_ != nullptr) {
+    delete index_description_;
+  }
+  index_description_ = nullptr;
+}
+inline const ::milvus::proto::milvus::IndexDescription& DescribeSegmentResponse::index_description() const {
+  const ::milvus::proto::milvus::IndexDescription* p = index_description_;
+  // @@protoc_insertion_point(field_get:milvus.proto.milvus.DescribeSegmentResponse.index_description)
+  return p != nullptr ? *p : *reinterpret_cast<const ::milvus::proto::milvus::IndexDescription*>(
+      &::milvus::proto::milvus::_IndexDescription_default_instance_);
+}
+inline ::milvus::proto::milvus::IndexDescription* DescribeSegmentResponse::release_index_description() {
+  // @@protoc_insertion_point(field_release:milvus.proto.milvus.DescribeSegmentResponse.index_description)
+  
+  ::milvus::proto::milvus::IndexDescription* temp = index_description_;
+  index_description_ = nullptr;
+  return temp;
+}
+inline ::milvus::proto::milvus::IndexDescription* DescribeSegmentResponse::mutable_index_description() {
+  
+  if (index_description_ == nullptr) {
+    auto* p = CreateMaybeMessage<::milvus::proto::milvus::IndexDescription>(GetArenaNoVirtual());
+    index_description_ = p;
+  }
+  // @@protoc_insertion_point(field_mutable:milvus.proto.milvus.DescribeSegmentResponse.index_description)
+  return index_description_;
+}
+inline void DescribeSegmentResponse::set_allocated_index_description(::milvus::proto::milvus::IndexDescription* index_description) {
+  ::PROTOBUF_NAMESPACE_ID::Arena* message_arena = GetArenaNoVirtual();
+  if (message_arena == nullptr) {
+    delete index_description_;
+  }
+  if (index_description) {
+    ::PROTOBUF_NAMESPACE_ID::Arena* submessage_arena = nullptr;
+    if (message_arena != submessage_arena) {
+      index_description = ::PROTOBUF_NAMESPACE_ID::internal::GetOwnedMessage(
+          message_arena, index_description, submessage_arena);
+    }
+    
+  } else {
+    
+  }
+  index_description_ = index_description;
+  // @@protoc_insertion_point(field_set_allocated:milvus.proto.milvus.DescribeSegmentResponse.index_description)
+}
+
 // -------------------------------------------------------------------
 
 // ShowSegmentRequest
diff --git a/internal/dataservice/cluster.go b/internal/dataservice/cluster.go
index ef74df537..0ffd22514 100644
--- a/internal/dataservice/cluster.go
+++ b/internal/dataservice/cluster.go
@@ -41,7 +41,7 @@ func newDataNodeCluster(finishCh chan struct{}) *dataNodeCluster {
 func (c *dataNodeCluster) Register(ip string, port int64, id int64) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
-	if !c.checkDataNodeNotExist(ip, port) {
+	if c.checkDataNodeNotExist(ip, port) {
 		c.nodes = append(c.nodes, &dataNode{
 			id: id,
 			address: struct {
@@ -50,9 +50,9 @@ func (c *dataNodeCluster) Register(ip string, port int64, id int64) {
 			}{ip: ip, port: port},
 			channelNum: 0,
 		})
-	}
-	if len(c.nodes) == Params.DataNodeNum {
-		close(c.finishCh)
+		if len(c.nodes) == Params.DataNodeNum {
+			close(c.finishCh)
+		}
 	}
 }
 
diff --git a/internal/distributed/querynode/service.go b/internal/distributed/querynode/service.go
index 01bcdd2fa..d21caf64c 100644
--- a/internal/distributed/querynode/service.go
+++ b/internal/distributed/querynode/service.go
@@ -5,14 +5,17 @@ import (
 	"fmt"
 	"log"
 	"net"
+	"time"
 
 	"google.golang.org/grpc"
 
 	"github.com/zilliztech/milvus-distributed/internal/dataservice"
 	grpcdataserviceclient "github.com/zilliztech/milvus-distributed/internal/distributed/dataservice"
 	grpcindexserviceclient "github.com/zilliztech/milvus-distributed/internal/distributed/indexservice/client"
+	grpcmasterserviceclient "github.com/zilliztech/milvus-distributed/internal/distributed/masterservice"
 	grpcqueryserviceclient "github.com/zilliztech/milvus-distributed/internal/distributed/queryservice/client"
 	"github.com/zilliztech/milvus-distributed/internal/indexservice"
+	"github.com/zilliztech/milvus-distributed/internal/masterservice"
 	"github.com/zilliztech/milvus-distributed/internal/proto/commonpb"
 	"github.com/zilliztech/milvus-distributed/internal/proto/milvuspb"
 	"github.com/zilliztech/milvus-distributed/internal/proto/querypb"
@@ -36,6 +39,16 @@ func NewServer(ctx context.Context) *Server {
 		panic(err)
 	}
 
+	masterservice.Params.Init()
+	masterConnectTimeout := 10 * time.Second
+	masterClient, err := grpcmasterserviceclient.NewGrpcClient(masterservice.Params.Address, masterConnectTimeout)
+	if err != nil {
+		panic(err)
+	}
+	if err = server.node.SetMasterService(masterClient); err != nil {
+		panic(err)
+	}
+
 	indexservice.Params.Init()
 	indexClient := grpcindexserviceclient.NewClient(indexservice.Params.Address)
 	if err := server.node.SetIndexService(indexClient); err != nil {
diff --git a/internal/masterservice/meta_table.go b/internal/masterservice/meta_table.go
index ecf3b67bb..ba14232b1 100644
--- a/internal/masterservice/meta_table.go
+++ b/internal/masterservice/meta_table.go
@@ -536,9 +536,12 @@ func (mt *metaTable) GetSegmentIndexInfoByID(segID typeutil.UniqueID, filedID in
 		return pb.SegmentIndexInfo{}, errors.Errorf("segment id %d not has any index", segID)
 	}
 
-	if filedID == -1 && idxName == "" { // return any index
+	if filedID == -1 && idxName == "" { // return default index
 		for _, seg := range *segIdxMap {
-			return seg, nil
+			info, ok := mt.indexID2Meta[seg.IndexID]
+			if ok && info.IndexName == Params.DefaultIndexName {
+				return seg, nil
+			}
 		}
 	} else {
 		for idxID, seg := range *segIdxMap {
@@ -705,3 +708,14 @@ func (mt *metaTable) GetIndexByName(collName string, fieldName string, indexName
 	}
 	return rst, nil
 }
+
+func (mt *metaTable) GetIndexByID(indexID typeutil.UniqueID) (*pb.IndexInfo, error) {
+	mt.ddLock.RLock()
+	mt.ddLock.RUnlock()
+
+	indexInfo, ok := mt.indexID2Meta[indexID]
+	if !ok {
+		return nil, errors.New("cannot find index, id =" + strconv.FormatInt(indexID, 10))
+	}
+	return &indexInfo, nil
+}
diff --git a/internal/masterservice/task.go b/internal/masterservice/task.go
index 682217db5..d8d8304b5 100644
--- a/internal/masterservice/task.go
+++ b/internal/masterservice/task.go
@@ -480,6 +480,14 @@ func (t *DescribeSegmentReqTask) Execute() error {
 		return err
 	}
 	t.Rsp.IndexID = segIdxInfo.IndexID
+	indexInfo, err := t.core.MetaTable.GetIndexByID(segIdxInfo.IndexID)
+	if err != nil {
+		return err
+	}
+	t.Rsp.IndexDescription = &milvuspb.IndexDescription{
+		IndexName: Params.DefaultIndexName, // TODO: set index name
+		Params:    indexInfo.IndexParams,
+	}
 	return nil
 }
 
diff --git a/internal/proto/milvus.proto b/internal/proto/milvus.proto
index 07f7b8eb8..6cf9e5093 100644
--- a/internal/proto/milvus.proto
+++ b/internal/proto/milvus.proto
@@ -154,6 +154,7 @@ message DescribeSegmentRequest {
 message DescribeSegmentResponse {
   common.Status status = 1;
   int64 indexID = 2;
+  IndexDescription index_description = 3;
 }
 
 message ShowSegmentRequest {
diff --git a/internal/proto/milvuspb/milvus.pb.go b/internal/proto/milvuspb/milvus.pb.go
index 2aac22795..b73147a7f 100644
--- a/internal/proto/milvuspb/milvus.pb.go
+++ b/internal/proto/milvuspb/milvus.pb.go
@@ -1337,11 +1337,12 @@ func (m *DescribeSegmentRequest) GetSegmentID() int64 {
 }
 
 type DescribeSegmentResponse struct {
-	Status               *commonpb.Status `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
-	IndexID              int64            `protobuf:"varint,2,opt,name=indexID,proto3" json:"indexID,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}         `json:"-"`
-	XXX_unrecognized     []byte           `json:"-"`
-	XXX_sizecache        int32            `json:"-"`
+	Status               *commonpb.Status  `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
+	IndexID              int64             `protobuf:"varint,2,opt,name=indexID,proto3" json:"indexID,omitempty"`
+	IndexDescription     *IndexDescription `protobuf:"bytes,3,opt,name=index_description,json=indexDescription,proto3" json:"index_description,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}          `json:"-"`
+	XXX_unrecognized     []byte            `json:"-"`
+	XXX_sizecache        int32             `json:"-"`
 }
 
 func (m *DescribeSegmentResponse) Reset()         { *m = DescribeSegmentResponse{} }
@@ -1383,6 +1384,13 @@ func (m *DescribeSegmentResponse) GetIndexID() int64 {
 	return 0
 }
 
+func (m *DescribeSegmentResponse) GetIndexDescription() *IndexDescription {
+	if m != nil {
+		return m.IndexDescription
+	}
+	return nil
+}
+
 type ShowSegmentRequest struct {
 	Base                 *commonpb.MsgBase `protobuf:"bytes,1,opt,name=base,proto3" json:"base,omitempty"`
 	CollectionID         int64             `protobuf:"varint,2,opt,name=collectionID,proto3" json:"collectionID,omitempty"`
@@ -2400,112 +2408,113 @@ func init() {
 func init() { proto.RegisterFile("milvus.proto", fileDescriptor_02345ba45cc0e303) }
 
 var fileDescriptor_02345ba45cc0e303 = []byte{
-	// 1665 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xd4, 0x59, 0xdd, 0x6f, 0x1b, 0xc5,
-	0x16, 0xcf, 0xda, 0x8e, 0x93, 0x9c, 0xac, 0x1d, 0x67, 0xf2, 0xe5, 0xba, 0xed, 0x6d, 0x3a, 0xf7,
-	0xf6, 0x26, 0xfd, 0x4a, 0xae, 0xd2, 0xfb, 0xf9, 0x70, 0xa5, 0x36, 0x71, 0x9a, 0x5a, 0x6d, 0xd3,
-	0xdc, 0x75, 0x6e, 0x21, 0x54, 0x95, 0x59, 0x7b, 0x07, 0x7b, 0xe9, 0x7a, 0xd7, 0xec, 0x8c, 0xf3,
-	0xd1, 0x27, 0x04, 0x12, 0x48, 0x80, 0xe0, 0x99, 0x57, 0x24, 0x5e, 0x11, 0x14, 0xc4, 0x7f, 0x80,
-	0xc4, 0xff, 0x82, 0x10, 0x7f, 0x01, 0x12, 0xda, 0xd9, 0xf5, 0x7a, 0x77, 0x33, 0x1b, 0x9b, 0x1a,
-	0x88, 0xf3, 0xe6, 0x39, 0x3e, 0x73, 0xce, 0xef, 0x7c, 0xcd, 0x9c, 0x39, 0x0b, 0x72, 0x53, 0x37,
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+	0x80, 0x4b, 0x2a, 0x01, 0x0a, 0xfe, 0x46, 0x02, 0xe4, 0x96, 0x17, 0xdc, 0x4e, 0x67, 0x99, 0x93,
+	0x97, 0x01, 0xfe, 0xa5, 0x13, 0x43, 0x0b, 0x6e, 0x66, 0x53, 0x9c, 0xc2, 0x7f, 0x17, 0x41, 0x26,
+	0xc7, 0xcc, 0x56, 0x2b, 0x2d, 0xd5, 0x56, 0x9b, 0x34, 0x3f, 0x3e, 0xe8, 0xfe, 0x33, 0xcd, 0xa7,
+	0xed, 0xf1, 0x59, 0xf8, 0x2b, 0xa7, 0x30, 0xf1, 0x22, 0x75, 0xd4, 0x57, 0x7c, 0x19, 0xc0, 0x0d,
+	0x75, 0xfe, 0x7b, 0xdc, 0xfd, 0xcd, 0x29, 0x7c, 0x67, 0x37, 0x20, 0x17, 0x8d, 0xed, 0xc8, 0x14,
+	0x29, 0x32, 0x05, 0xfd, 0x09, 0xd2, 0x9e, 0xf5, 0x06, 0xde, 0xbd, 0xbd, 0x09, 0xf8, 0x03, 0x09,
+	0x16, 0x22, 0x86, 0x1b, 0x26, 0x2e, 0xf7, 0x01, 0xf5, 0xa4, 0x71, 0x07, 0xd5, 0x80, 0x79, 0x3c,
+	0x1b, 0xcd, 0x63, 0x8a, 0xbf, 0x94, 0x60, 0x96, 0xf3, 0x39, 0xda, 0xc8, 0xf9, 0x75, 0xed, 0x7f,
+	0x25, 0x40, 0xc1, 0x75, 0x0c, 0x63, 0xe9, 0xdf, 0xb9, 0x07, 0xb6, 0xbb, 0x92, 0xec, 0xc6, 0x15,
+	0xe1, 0x9c, 0x80, 0x32, 0x97, 0x1b, 0x7f, 0x27, 0x41, 0xa6, 0x64, 0x52, 0x62, 0xb3, 0xd1, 0x2f,
+	0x72, 0xd0, 0x6f, 0x61, 0xd2, 0xb6, 0x8e, 0x2a, 0x9a, 0xca, 0x54, 0x6f, 0x5f, 0xb8, 0x20, 0x84,
+	0xb7, 0x69, 0x58, 0x55, 0x65, 0xc2, 0xb6, 0x8e, 0x8a, 0x2a, 0x53, 0xd1, 0x45, 0x98, 0x6a, 0xa8,
+	0xb4, 0x51, 0x79, 0x41, 0x4e, 0x68, 0x3e, 0xbd, 0x9c, 0x5c, 0xcd, 0x28, 0x93, 0x0e, 0xe1, 0x21,
+	0x39, 0xa1, 0xf8, 0xff, 0x12, 0x64, 0x3b, 0xeb, 0x1f, 0xc6, 0xfc, 0x57, 0x60, 0xda, 0xb6, 0x8e,
+	0x4a, 0xc5, 0x4a, 0x95, 0xd4, 0x75, 0xd3, 0x3b, 0x11, 0x80, 0x93, 0x36, 0x1d, 0x8a, 0x83, 0xc2,
+	0x65, 0x20, 0xa6, 0xe6, 0x9d, 0x06, 0x93, 0x9c, 0xb0, 0x6d, 0x6a, 0xf8, 0x10, 0x72, 0x7b, 0x86,
+	0x5a, 0x23, 0x0d, 0xcb, 0xd0, 0x88, 0xcd, 0xb3, 0x12, 0xe5, 0x20, 0xc9, 0xd4, 0xba, 0x97, 0xdc,
+	0xce, 0x27, 0xfa, 0x23, 0xa4, 0xd8, 0x49, 0xab, 0xe3, 0xe1, 0x5f, 0x09, 0xd3, 0x27, 0x20, 0x66,
+	0xff, 0xa4, 0x45, 0x14, 0x3e, 0x03, 0x2d, 0x42, 0x9a, 0x77, 0xb1, 0xdc, 0x2a, 0x43, 0x56, 0xbc,
+	0x11, 0x7e, 0x1e, 0xd2, 0xbb, 0x63, 0x5b, 0xed, 0x16, 0x2a, 0x81, 0xdc, 0xea, 0xd2, 0x1c, 0x23,
+	0xc4, 0x27, 0x6b, 0x14, 0xb4, 0x12, 0x9a, 0x8a, 0xbf, 0x96, 0x20, 0x53, 0x26, 0xaa, 0x5d, 0x6b,
+	0x9c, 0x87, 0xc2, 0xdf, 0xb1, 0xb8, 0x46, 0x0d, 0x2f, 0x4d, 0x9d, 0x4f, 0x74, 0x13, 0x66, 0x03,
+	0x0b, 0xaa, 0xd4, 0x1d, 0x03, 0xe5, 0xd3, 0xbc, 0xd5, 0x9b, 0x6b, 0x45, 0x0c, 0x87, 0x1f, 0x42,
+	0xea, 0x81, 0xce, 0xb8, 0x18, 0xe7, 0x10, 0x96, 0xf8, 0x21, 0xec, 0x7c, 0xa2, 0x0b, 0x81, 0xb8,
+	0x4d, 0x70, 0x07, 0xf8, 0xc1, 0xc9, 0x3b, 0xc8, 0x96, 0xed, 0x79, 0x26, 0xa1, 0x78, 0x23, 0xfc,
+	0xf7, 0xae, 0xe5, 0x68, 0xdb, 0x60, 0xf4, 0xf5, 0xa2, 0x12, 0x41, 0xaa, 0xa1, 0x7b, 0x45, 0xbc,
+	0xac, 0xf0, 0x6f, 0xfc, 0x3f, 0x09, 0xe4, 0xfb, 0x46, 0x9b, 0x9e, 0xa5, 0x4f, 0x9c, 0xb4, 0x9b,
+	0x57, 0x48, 0x5d, 0xa7, 0x8c, 0xd8, 0x8f, 0x74, 0xf3, 0x85, 0x9f, 0x7c, 0xbf, 0x87, 0x09, 0x55,
+	0xd3, 0x6c, 0x42, 0xe9, 0xa9, 0x78, 0xee, 0xb9, 0x3c, 0x4a, 0x87, 0x39, 0x60, 0x9e, 0xc4, 0xc0,
+	0xe6, 0xb9, 0x71, 0x17, 0x66, 0x22, 0xf9, 0x82, 0x26, 0x21, 0xb5, 0xfb, 0x64, 0x77, 0x3b, 0x37,
+	0x86, 0x66, 0x21, 0xf3, 0x74, 0x7b, 0x6b, 0xff, 0x89, 0x52, 0xd9, 0x2c, 0xed, 0xde, 0x53, 0x0e,
+	0x72, 0x1a, 0xca, 0x81, 0xec, 0x91, 0xee, 0x3f, 0x7a, 0x72, 0x6f, 0x3f, 0x47, 0x36, 0xbe, 0xcd,
+	0x41, 0xe6, 0x31, 0x57, 0x54, 0x26, 0xf6, 0xa1, 0x5e, 0x23, 0xa8, 0x02, 0xb9, 0xe8, 0x0b, 0x05,
+	0xba, 0x25, 0x4c, 0x9e, 0x98, 0x87, 0x8c, 0xc2, 0x69, 0xd0, 0xf1, 0x18, 0x7a, 0x06, 0xd9, 0xf0,
+	0xd3, 0x02, 0xba, 0x21, 0x14, 0x2f, 0x7c, 0x7f, 0xe8, 0x27, 0xbc, 0x02, 0x99, 0xd0, 0x4b, 0x01,
+	0xba, 0x2e, 0x94, 0x2d, 0x7a, 0x4d, 0x28, 0x5c, 0x15, 0xb2, 0x06, 0x9b, 0xfd, 0x2e, 0xfa, 0x70,
+	0xf3, 0x37, 0x06, 0xbd, 0xb0, 0x43, 0xdc, 0x0f, 0xbd, 0x0a, 0xb3, 0x3d, 0xbd, 0x5c, 0x74, 0x5b,
+	0x28, 0x3f, 0xae, 0xe7, 0xdb, 0x4f, 0xc5, 0x11, 0xa0, 0xde, 0x9e, 0x3b, 0x5a, 0x13, 0x7b, 0x20,
+	0xee, 0xb9, 0xa0, 0xb0, 0x3e, 0x30, 0xbf, 0x6f, 0xb8, 0x43, 0x58, 0xda, 0x21, 0x2c, 0xdc, 0x8a,
+	0xd5, 0x29, 0xd3, 0x6b, 0x14, 0xdd, 0x14, 0x87, 0x97, 0xb0, 0x89, 0x5c, 0xb8, 0x35, 0x18, 0xb3,
+	0xaf, 0xd7, 0x80, 0x99, 0x70, 0x4b, 0x94, 0xc6, 0x78, 0x4c, 0xd8, 0x9c, 0x2d, 0xdc, 0x1c, 0x88,
+	0xd7, 0xd7, 0xf6, 0x1c, 0x66, 0x22, 0x5d, 0xd0, 0xb8, 0xd5, 0x09, 0x7b, 0xa5, 0xfd, 0xbc, 0x77,
+	0x00, 0x99, 0x50, 0xbb, 0x32, 0x26, 0xbc, 0x45, 0x2d, 0xcd, 0x7e, 0xa2, 0x9f, 0x83, 0x1c, 0xec,
+	0x2a, 0xa2, 0xd5, 0xb8, 0xc4, 0xe9, 0x11, 0x3c, 0x50, 0xde, 0x1c, 0xb8, 0x79, 0xe3, 0x4f, 0xa6,
+	0x31, 0x0a, 0x04, 0x6d, 0xc2, 0x7e, 0xc8, 0xff, 0xe9, 0x67, 0x4d, 0x40, 0xfa, 0xad, 0xd3, 0xb2,
+	0xe6, 0x87, 0xda, 0x86, 0xc2, 0xe2, 0x0e, 0x61, 0xa1, 0xf6, 0x94, 0x17, 0xba, 0xe2, 0x50, 0x12,
+	0x76, 0xdf, 0x62, 0x42, 0x49, 0xdc, 0xf4, 0xc2, 0x63, 0x48, 0x87, 0x6c, 0xa8, 0xad, 0x43, 0x63,
+	0x9c, 0x2d, 0x6a, 0x56, 0x15, 0x6e, 0x0c, 0xc2, 0xea, 0xab, 0xfa, 0x2b, 0x4c, 0x07, 0x2e, 0xd7,
+	0x68, 0xe5, 0x94, 0x88, 0x0d, 0x5e, 0x46, 0xfb, 0x99, 0xad, 0x01, 0x99, 0xd0, 0x55, 0x2c, 0x2e,
+	0x5a, 0x05, 0xf7, 0xdc, 0x98, 0x05, 0x08, 0x6f, 0x76, 0x78, 0x0c, 0x55, 0x21, 0xb3, 0x43, 0x58,
+	0xf7, 0x76, 0x80, 0x7e, 0x1d, 0x7f, 0x37, 0x0b, 0xde, 0xb9, 0x0a, 0x2b, 0x7d, 0xf9, 0x7c, 0x1d,
+	0x65, 0x48, 0xbb, 0x85, 0x36, 0xc2, 0x31, 0x93, 0x02, 0xb7, 0x90, 0xc2, 0x2f, 0x4f, 0xe5, 0xf1,
+	0x85, 0x2a, 0x90, 0x76, 0xcb, 0xa4, 0x18, 0xa1, 0xa1, 0xea, 0xb3, 0x70, 0x3a, 0x0f, 0xaf, 0xb3,
+	0xf0, 0x18, 0x2a, 0xc1, 0x38, 0xaf, 0x8f, 0x90, 0x38, 0x31, 0x83, 0xb5, 0x53, 0x3f, 0x0f, 0xfe,
+	0x05, 0xe4, 0x1d, 0xc2, 0x8a, 0xda, 0x56, 0x43, 0x35, 0x4d, 0x62, 0xa0, 0x82, 0x90, 0x7d, 0xbb,
+	0xd9, 0x62, 0x27, 0x31, 0x2b, 0x0e, 0x3f, 0x68, 0xe3, 0xb1, 0x8d, 0x3a, 0xc8, 0x7b, 0xb6, 0x75,
+	0x7c, 0xd2, 0xa9, 0x37, 0xfe, 0x06, 0x72, 0xb0, 0x90, 0x3a, 0x55, 0xc5, 0xf5, 0x98, 0xa4, 0xee,
+	0xad, 0xc3, 0xf0, 0xd8, 0xe6, 0xe6, 0x3f, 0xee, 0xd6, 0x75, 0xd6, 0x68, 0x57, 0x1d, 0x19, 0xeb,
+	0x2f, 0x75, 0xc3, 0xd0, 0x5f, 0x32, 0x52, 0x6b, 0xac, 0xbb, 0xd3, 0x6e, 0x6b, 0x3a, 0x65, 0xb6,
+	0x5e, 0x6d, 0x33, 0xa2, 0xad, 0xeb, 0x26, 0x23, 0xb6, 0xa9, 0x1a, 0xeb, 0x5c, 0xb0, 0xc7, 0xd1,
+	0xaa, 0x56, 0xd3, 0x7c, 0x7c, 0xe7, 0xfb, 0x00, 0x00, 0x00, 0xff, 0xff, 0x50, 0x4c, 0x09, 0xb0,
+	0xf7, 0x21, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
diff --git a/internal/proxyservice/nodeid_allocator.go b/internal/proxyservice/nodeid_allocator.go
index aa22db282..f4cc9cf82 100644
--- a/internal/proxyservice/nodeid_allocator.go
+++ b/internal/proxyservice/nodeid_allocator.go
@@ -1,7 +1,7 @@
 package proxyservice
 
 import (
-	"sync"
+	"context"
 
 	"github.com/zilliztech/milvus-distributed/internal/allocator"
 
@@ -17,21 +17,22 @@ type NodeIDAllocator interface {
 
 type NaiveNodeIDAllocatorImpl struct {
 	impl *allocator.IDAllocator
-	now  UniqueID
-	mtx  sync.Mutex
 }
 
 func (allocator *NaiveNodeIDAllocatorImpl) AllocOne() UniqueID {
-	allocator.mtx.Lock()
-	defer func() {
-		allocator.now++
-		allocator.mtx.Unlock()
-	}()
-	return allocator.now
+	id, err := allocator.impl.AllocOne()
+	if err != nil {
+		panic(err)
+	}
+	return id
 }
 
 func NewNodeIDAllocator() NodeIDAllocator {
+	impl, err := allocator.NewIDAllocator(context.Background(), Params.MasterAddress())
+	if err != nil {
+		panic(err)
+	}
 	return &NaiveNodeIDAllocatorImpl{
-		now: 0,
+		impl: impl,
 	}
 }
diff --git a/internal/querynode/query_node.go b/internal/querynode/query_node.go
index 43b9953f2..a9cc45323 100644
--- a/internal/querynode/query_node.go
+++ b/internal/querynode/query_node.go
@@ -16,7 +16,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/zilliztech/milvus-distributed/internal/proto/datapb"
 	"io"
 	"log"
 	"sync/atomic"
@@ -27,6 +26,7 @@ import (
 	"github.com/zilliztech/milvus-distributed/internal/msgstream/pulsarms"
 	"github.com/zilliztech/milvus-distributed/internal/msgstream/util"
 	"github.com/zilliztech/milvus-distributed/internal/proto/commonpb"
+	"github.com/zilliztech/milvus-distributed/internal/proto/datapb"
 	"github.com/zilliztech/milvus-distributed/internal/proto/internalpb2"
 	queryPb "github.com/zilliztech/milvus-distributed/internal/proto/querypb"
 	"github.com/zilliztech/milvus-distributed/internal/util/typeutil"
@@ -69,9 +69,10 @@ type QueryNode struct {
 	closer io.Closer
 
 	// clients
-	queryClient QueryServiceInterface
-	indexClient IndexServiceInterface
-	dataClient  DataServiceInterface
+	masterClient MasterServiceInterface
+	queryClient  QueryServiceInterface
+	indexClient  IndexServiceInterface
+	dataClient   DataServiceInterface
 }
 
 func NewQueryNode(ctx context.Context, queryNodeID uint64) *QueryNode {
@@ -203,7 +204,7 @@ func (node *QueryNode) Start() error {
 	node.metaService = newMetaService(node.queryNodeLoopCtx, node.replica)
 	node.loadIndexService = newLoadIndexService(node.queryNodeLoopCtx, node.replica)
 	node.statsService = newStatsService(node.queryNodeLoopCtx, node.replica, node.loadIndexService.fieldStatsChan)
-	node.segManager = newSegmentManager(node.queryNodeLoopCtx, node.dataClient, node.indexClient, node.replica, node.dataSyncService.dmStream, node.loadIndexService.loadIndexReqChan)
+	node.segManager = newSegmentManager(node.queryNodeLoopCtx, node.masterClient, node.dataClient, node.indexClient, node.replica, node.dataSyncService.dmStream, node.loadIndexService.loadIndexReqChan)
 
 	// start services
 	go node.dataSyncService.start()
@@ -243,9 +244,17 @@ func (node *QueryNode) Stop() error {
 	return nil
 }
 
+func (node *QueryNode) SetMasterService(master MasterServiceInterface) error {
+	if master == nil {
+		return errors.New("null master service interface")
+	}
+	node.masterClient = master
+	return nil
+}
+
 func (node *QueryNode) SetQueryService(query QueryServiceInterface) error {
 	if query == nil {
-		return errors.New("query index service interface")
+		return errors.New("null query service interface")
 	}
 	node.queryClient = query
 	return nil
diff --git a/internal/querynode/segment_manager.go b/internal/querynode/segment_manager.go
index ea348930b..9b399ebff 100644
--- a/internal/querynode/segment_manager.go
+++ b/internal/querynode/segment_manager.go
@@ -12,6 +12,7 @@ import (
 	"github.com/zilliztech/milvus-distributed/internal/proto/datapb"
 	"github.com/zilliztech/milvus-distributed/internal/proto/indexpb"
 	internalPb "github.com/zilliztech/milvus-distributed/internal/proto/internalpb2"
+	"github.com/zilliztech/milvus-distributed/internal/proto/milvuspb"
 	"github.com/zilliztech/milvus-distributed/internal/storage"
 )
 
@@ -21,8 +22,9 @@ type segmentManager struct {
 	dmStream         msgstream.MsgStream
 	loadIndexReqChan chan []msgstream.TsMsg
 
-	dataClient  DataServiceInterface
-	indexClient IndexServiceInterface
+	masterClient MasterServiceInterface
+	dataClient   DataServiceInterface
+	indexClient  IndexServiceInterface
 
 	kv     kv.Base // minio kv
 	iCodec *storage.InsertCodec
@@ -39,6 +41,29 @@ func (s *segmentManager) seekSegment(positions []*internalPb.MsgPosition) error
 	return nil
 }
 
+func (s *segmentManager) getIndexInfo(collectionID UniqueID, segmentID UniqueID) (UniqueID, indexParam, error) {
+	req := &milvuspb.DescribeSegmentRequest{
+		Base: &commonpb.MsgBase{
+			MsgType: commonpb.MsgType_kDescribeSegment,
+		},
+		CollectionID: collectionID,
+		SegmentID:    segmentID,
+	}
+	response, err := s.masterClient.DescribeSegment(req)
+	if err != nil {
+		return 0, nil, err
+	}
+	if len(response.IndexDescription.Params) <= 0 {
+		return 0, nil, errors.New("null index param")
+	}
+
+	var targetIndexParam = make(map[string]string)
+	for _, param := range response.IndexDescription.Params {
+		targetIndexParam[param.Key] = param.Value
+	}
+	return response.IndexID, targetIndexParam, nil
+}
+
 func (s *segmentManager) loadSegment(collectionID UniqueID, partitionID UniqueID, segmentIDs []UniqueID, fieldIDs []int64) error {
 	// TODO: interim solution
 	if len(fieldIDs) == 0 {
@@ -52,7 +77,10 @@ func (s *segmentManager) loadSegment(collectionID UniqueID, partitionID UniqueID
 		}
 	}
 	for _, segmentID := range segmentIDs {
-		indexID := UniqueID(0) // TODO: get index id from master
+		indexID, indexParams, err := s.getIndexInfo(collectionID, segmentID)
+		if err != nil {
+			return err
+		}
 		paths, srcFieldIDs, err := s.getInsertBinlogPaths(segmentID)
 		if err != nil {
 			return err
@@ -76,11 +104,7 @@ func (s *segmentManager) loadSegment(collectionID UniqueID, partitionID UniqueID
 		if err != nil {
 			return err
 		}
-		iParam, err := s.getIndexParam()
-		if err != nil {
-			return err
-		}
-		err = s.loadIndex(segmentID, indexPaths, iParam)
+		err = s.loadIndex(segmentID, indexPaths, indexParams)
 		if err != nil {
 			// TODO: return or continue?
 			return err
@@ -236,12 +260,6 @@ func (s *segmentManager) getIndexPaths(indexID UniqueID) ([]string, error) {
 	return pathResponse.FilePaths[0].IndexFilePaths, nil
 }
 
-func (s *segmentManager) getIndexParam() (indexParam, error) {
-	var targetIndexParam indexParam
-	// TODO: get index param from master
-	return targetIndexParam, nil
-}
-
 func (s *segmentManager) loadIndex(segmentID UniqueID, indexPaths []string, indexParam indexParam) error {
 	// get vector field ids from schema to load index
 	vecFieldIDs, err := s.replica.getVecFieldsBySegmentID(segmentID)
@@ -288,7 +306,7 @@ func (s *segmentManager) sendLoadIndex(indexPaths []string,
 	s.loadIndexReqChan <- messages
 }
 
-func newSegmentManager(ctx context.Context, dataClient DataServiceInterface, indexClient IndexServiceInterface, replica collectionReplica, dmStream msgstream.MsgStream, loadIndexReqChan chan []msgstream.TsMsg) *segmentManager {
+func newSegmentManager(ctx context.Context, masterClient MasterServiceInterface, dataClient DataServiceInterface, indexClient IndexServiceInterface, replica collectionReplica, dmStream msgstream.MsgStream, loadIndexReqChan chan []msgstream.TsMsg) *segmentManager {
 	bucketName := Params.MinioBucketName
 	option := &miniokv.Option{
 		Address:           Params.MinioEndPoint,
@@ -309,8 +327,9 @@ func newSegmentManager(ctx context.Context, dataClient DataServiceInterface, ind
 		dmStream:         dmStream,
 		loadIndexReqChan: loadIndexReqChan,
 
-		dataClient:  dataClient,
-		indexClient: indexClient,
+		masterClient: masterClient,
+		dataClient:   dataClient,
+		indexClient:  indexClient,
 
 		kv:     minioKV,
 		iCodec: &storage.InsertCodec{},
diff --git a/internal/querynode/segment_manager_test.go b/internal/querynode/segment_manager_test.go
index 160931408..b3c731673 100644
--- a/internal/querynode/segment_manager_test.go
+++ b/internal/querynode/segment_manager_test.go
@@ -405,7 +405,7 @@ func TestSegmentManager_load_release_and_search(t *testing.T) {
 
 	ctx := node.queryNodeLoopCtx
 	node.loadIndexService = newLoadIndexService(ctx, node.replica)
-	node.segManager = newSegmentManager(ctx, nil, nil, node.replica, nil, node.loadIndexService.loadIndexReqChan)
+	node.segManager = newSegmentManager(ctx, nil, nil, nil, node.replica, nil, node.loadIndexService.loadIndexReqChan)
 	go node.loadIndexService.start()
 
 	collectionName := "collection0"
diff --git a/internal/querynode/type_def.go b/internal/querynode/type_def.go
index d6e6b0d19..a7d724e33 100644
--- a/internal/querynode/type_def.go
+++ b/internal/querynode/type_def.go
@@ -3,6 +3,7 @@ package querynode
 import (
 	"github.com/zilliztech/milvus-distributed/internal/proto/datapb"
 	"github.com/zilliztech/milvus-distributed/internal/proto/indexpb"
+	"github.com/zilliztech/milvus-distributed/internal/proto/milvuspb"
 	"github.com/zilliztech/milvus-distributed/internal/proto/querypb"
 	"github.com/zilliztech/milvus-distributed/internal/util/typeutil"
 )
@@ -17,6 +18,11 @@ type TimeRange struct {
 	timestampMax Timestamp
 }
 
+type MasterServiceInterface interface {
+	DescribeSegment(in *milvuspb.DescribeSegmentRequest) (*milvuspb.DescribeSegmentResponse, error)
+	DescribeIndex(in *milvuspb.DescribeIndexRequest) (*milvuspb.DescribeIndexResponse, error)
+}
+
 type QueryServiceInterface interface {
 	RegisterNode(req *querypb.RegisterNodeRequest) (*querypb.RegisterNodeResponse, error)
 }
-- 
GitLab