sync snapshot

include/libs/sync/sync.h

@@ -50,14 +50,10 @@ typedef struct SSyncCfg {
   SNodeInfo nodeInfo[TSDB_MAX_REPLICA];
 } SSyncCfg;
 
-typedef struct SRaftId {
-  SyncNodeId  addr;
-  SyncGroupId vgId;
-} SRaftId;
-
 typedef struct SSnapshot {
   void*     data;
   SyncIndex lastApplyIndex;
+  SyncTerm  lastApplyTerm;
 } SSnapshot;
 
 typedef enum {
@@ -80,8 +76,8 @@ typedef struct SSyncFSM {
   void (*FpPreCommitCb)(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SFsmCbMeta cbMeta);
   void (*FpRollBackCb)(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SFsmCbMeta cbMeta);
 
-  int32_t (*FpTakeSnapshot)(SSnapshot* snapshot);
-  int32_t (*FpRestoreSnapshot)(const SSnapshot* snapshot);
+  int32_t (*FpGetSnapshot)(struct SSyncFSM* pFsm, SSnapshot* pSnapshot);
+  int32_t (*FpRestoreSnapshot)(struct SSyncFSM* pFsm, const SSnapshot* snapshot);
 
 } SSyncFSM;
 

include/libs/sync/syncTools.h

@@ -27,6 +27,12 @@ extern "C" {
 #include "trpc.h"
 #include "wal.h"
 
+// ------------------ ds -------------------
+typedef struct SRaftId {
+  SyncNodeId  addr;
+  SyncGroupId vgId;
+} SRaftId;
+
 // ------------------ control -------------------
 struct SSyncNode;
 typedef struct SSyncNode SSyncNode;

source/libs/sync/test/CMakeLists.txt

@@ -40,6 +40,7 @@ add_executable(syncRefTest "")
 add_executable(syncLogStoreCheck "")
 add_executable(syncRaftCfgTest "")
 add_executable(syncRespMgrTest "")
+add_executable(syncSnapshotTest "")
 
 
 target_sources(syncTest
@@ -210,6 +211,10 @@ target_sources(syncRespMgrTest
     PRIVATE
     "syncRespMgrTest.cpp"
 )
+target_sources(syncSnapshotTest
+    PRIVATE
+    "syncSnapshotTest.cpp"
+)
 
 
 target_include_directories(syncTest
@@ -422,6 +427,11 @@ target_include_directories(syncRespMgrTest
     "${CMAKE_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
+target_include_directories(syncSnapshotTest
+    PUBLIC
+    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
+)
 
 
 target_link_libraries(syncTest
@@ -592,6 +602,10 @@ target_link_libraries(syncRespMgrTest
     sync
     gtest_main
 )
+target_link_libraries(syncSnapshotTest
+    sync
+    gtest_main
+)
 
 
 enable_testing()

source/libs/sync/test/syncSnapshotTest.cpp

+#include <gtest/gtest.h>
+#include <stdio.h>
+#include "syncEnv.h"
+#include "syncIO.h"
+#include "syncInt.h"
+#include "syncMessage.h"
+#include "syncRaftEntry.h"
+#include "syncRaftLog.h"
+#include "syncRaftStore.h"
+#include "syncUtil.h"
+
+void logTest() {
+  sTrace("--- sync log test: trace");
+  sDebug("--- sync log test: debug");
+  sInfo("--- sync log test: info");
+  sWarn("--- sync log test: warn");
+  sError("--- sync log test: error");
+  sFatal("--- sync log test: fatal");
+}
+
+uint16_t ports[] = {7010, 7110, 7210, 7310, 7410};
+int32_t  replicaNum = 1;
+int32_t  myIndex = 0;
+
+SRaftId    ids[TSDB_MAX_REPLICA];
+SSyncInfo  syncInfo;
+SSyncFSM * pFsm;
+SWal *     pWal;
+SSyncNode *gSyncNode;
+SyncIndex  snapshotLastApplyIndex = SYNC_INDEX_INVALID;
+
+const char *pDir = "./syncSnapshotTest";
+const char *pWalDir = "./syncSnapshotTest_wal";
+
+void CommitCb(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
+  SyncIndex beginIndex = SYNC_INDEX_INVALID;
+  if (pFsm->FpGetSnapshot != NULL) {
+    SSnapshot snapshot;
+    pFsm->FpGetSnapshot(pFsm, &snapshot);
+    beginIndex = snapshot.lastApplyIndex;
+  }
+
+  if (cbMeta.index > beginIndex) {
+    char logBuf[256];
+    snprintf(logBuf, sizeof(logBuf), "==callback== ==CommitCb== pFsm:%p, index:%ld, isWeak:%d, code:%d, state:%d %s \n",
+             pFsm, cbMeta.index, cbMeta.isWeak, cbMeta.code, cbMeta.state, syncUtilState2String(cbMeta.state));
+    syncRpcMsgLog2(logBuf, (SRpcMsg *)pMsg);
+  } else {
+    sTrace("==callback== ==CommitCb== do not apply again %ld", cbMeta.index);
+  }
+}
+
+void PreCommitCb(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
+  char logBuf[256];
+  snprintf(logBuf, sizeof(logBuf),
+           "==callback== ==PreCommitCb== pFsm:%p, index:%ld, isWeak:%d, code:%d, state:%d %s \n", pFsm, cbMeta.index,
+           cbMeta.isWeak, cbMeta.code, cbMeta.state, syncUtilState2String(cbMeta.state));
+  syncRpcMsgLog2(logBuf, (SRpcMsg *)pMsg);
+}
+
+void RollBackCb(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
+  char logBuf[256];
+  snprintf(logBuf, sizeof(logBuf), "==callback== ==RollBackCb== pFsm:%p, index:%ld, isWeak:%d, code:%d, state:%d %s \n",
+           pFsm, cbMeta.index, cbMeta.isWeak, cbMeta.code, cbMeta.state, syncUtilState2String(cbMeta.state));
+  syncRpcMsgLog2(logBuf, (SRpcMsg *)pMsg);
+}
+
+int32_t GetSnapshotCb(struct SSyncFSM *pFsm, SSnapshot *pSnapshot) {
+  pSnapshot->data = NULL;
+  pSnapshot->lastApplyIndex = snapshotLastApplyIndex;
+  pSnapshot->lastApplyTerm = 100;
+  return 0;
+}
+
+void initFsm() {
+  pFsm = (SSyncFSM *)taosMemoryMalloc(sizeof(SSyncFSM));
+  pFsm->FpCommitCb = CommitCb;
+  pFsm->FpPreCommitCb = PreCommitCb;
+  pFsm->FpRollBackCb = RollBackCb;
+  pFsm->FpGetSnapshot = GetSnapshotCb;
+}
+
+SSyncNode *syncNodeInit() {
+  syncInfo.vgId = 1234;
+  syncInfo.rpcClient = gSyncIO->clientRpc;
+  syncInfo.FpSendMsg = syncIOSendMsg;
+  syncInfo.queue = gSyncIO->pMsgQ;
+  syncInfo.FpEqMsg = syncIOEqMsg;
+  syncInfo.pFsm = pFsm;
+  snprintf(syncInfo.path, sizeof(syncInfo.path), "%s", pDir);
+
+  int code = walInit();
+  assert(code == 0);
+  SWalCfg walCfg;
+  memset(&walCfg, 0, sizeof(SWalCfg));
+  walCfg.vgId = syncInfo.vgId;
+  walCfg.fsyncPeriod = 1000;
+  walCfg.retentionPeriod = 1000;
+  walCfg.rollPeriod = 1000;
+  walCfg.retentionSize = 1000;
+  walCfg.segSize = 1000;
+  walCfg.level = TAOS_WAL_FSYNC;
+  pWal = walOpen(pWalDir, &walCfg);
+  assert(pWal != NULL);
+
+  syncInfo.pWal = pWal;
+
+  SSyncCfg *pCfg = &syncInfo.syncCfg;
+  pCfg->myIndex = myIndex;
+  pCfg->replicaNum = replicaNum;
+
+  for (int i = 0; i < replicaNum; ++i) {
+    pCfg->nodeInfo[i].nodePort = ports[i];
+    snprintf(pCfg->nodeInfo[i].nodeFqdn, sizeof(pCfg->nodeInfo[i].nodeFqdn), "%s", "127.0.0.1");
+    // taosGetFqdn(pCfg->nodeInfo[0].nodeFqdn);
+  }
+
+  SSyncNode *pSyncNode = syncNodeOpen(&syncInfo);
+  assert(pSyncNode != NULL);
+
+  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  gSyncIO->pSyncNode = pSyncNode;
+
+  syncNodeStart(pSyncNode);
+
+  return pSyncNode;
+}
+
+SSyncNode *syncInitTest() { return syncNodeInit(); }
+
+void initRaftId(SSyncNode *pSyncNode) {
+  for (int i = 0; i < replicaNum; ++i) {
+    ids[i] = pSyncNode->replicasId[i];
+    char *s = syncUtilRaftId2Str(&ids[i]);
+    printf("raftId[%d] : %s\n", i, s);
+    taosMemoryFree(s);
+  }
+}
+
+SRpcMsg *step0() {
+  SRpcMsg *pMsg = (SRpcMsg *)taosMemoryMalloc(sizeof(SRpcMsg));
+  memset(pMsg, 0, sizeof(SRpcMsg));
+  pMsg->msgType = 9999;
+  pMsg->contLen = 32;
+  pMsg->pCont = taosMemoryMalloc(pMsg->contLen);
+  snprintf((char *)(pMsg->pCont), pMsg->contLen, "hello, world");
+  return pMsg;
+}
+
+SyncClientRequest *step1(const SRpcMsg *pMsg) {
+  SyncClientRequest *pRetMsg = syncClientRequestBuild2(pMsg, 123, true, 1000);
+  return pRetMsg;
+}
+
+int main(int argc, char **argv) {
+  // taosInitLog((char *)"syncTest.log", 100000, 10);
+  tsAsyncLog = 0;
+  sDebugFlag = 143 + 64;
+  void logTest();
+
+  myIndex = 0;
+  if (argc >= 2) {
+    snapshotLastApplyIndex = atoi(argv[1]);
+  }
+  sTrace("--snapshotLastApplyIndex : %ld \n", snapshotLastApplyIndex);
+
+  int32_t ret = syncIOStart((char *)"127.0.0.1", ports[myIndex]);
+  assert(ret == 0);
+
+  ret = syncEnvStart();
+  assert(ret == 0);
+
+  // taosRemoveDir(pWalDir);
+
+  initFsm();
+
+  gSyncNode = syncInitTest();
+  assert(gSyncNode != NULL);
+  syncNodeLog2((char *)"", gSyncNode);
+
+  initRaftId(gSyncNode);
+
+  // step0
+  SRpcMsg *pMsg0 = step0();
+  syncRpcMsgLog2((char *)"==step0==", pMsg0);
+
+  // step1
+  SyncClientRequest *pMsg1 = step1(pMsg0);
+  syncClientRequestLog2((char *)"==step1==", pMsg1);
+
+  for (int i = 0; i < 10; ++i) {
+    SyncClientRequest *pSyncClientRequest = pMsg1;
+    SRpcMsg            rpcMsg;
+    syncClientRequest2RpcMsg(pSyncClientRequest, &rpcMsg);
+    gSyncNode->FpEqMsg(gSyncNode->queue, &rpcMsg);
+
+    taosMsleep(1000);
+  }
+
+  while (1) {
+    sTrace("while 1 sleep");
+    taosMsleep(1000);
+  }
+
+  return 0;
+}