Get `CompactionJobInfo` from CompactFiles

Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/4716

Differential Revision: D13207677

Pulled By: ajkr

fbshipit-source-id: d0ccf5a66df6cbb07288b0c5ebad81fd9df3926b

db/c.cc

@@ -1784,11 +1784,11 @@ rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base(
 }
 
 rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base_cf(
-    rocksdb_writebatch_wi_t* wbwi,
-    rocksdb_iterator_t* base_iterator,
+    rocksdb_writebatch_wi_t* wbwi, rocksdb_iterator_t* base_iterator,
     rocksdb_column_family_handle_t* column_family) {
   rocksdb_iterator_t* result = new rocksdb_iterator_t;
-  result->rep = wbwi->rep->NewIteratorWithBase(column_family->rep, base_iterator->rep);
+  result->rep =
+      wbwi->rep->NewIteratorWithBase(column_family->rep, base_iterator->rep);
   delete base_iterator;
   return result;
 }

db/c_test.c

@@ -917,7 +917,8 @@ int main(int argc, char** argv) {
     rocksdb_writebatch_wi_t* wbi = rocksdb_writebatch_wi_create(0, 1);
     rocksdb_writebatch_wi_put(wbi, "bar", 3, "b", 1);
     rocksdb_writebatch_wi_delete(wbi, "foo", 3);
-    rocksdb_iterator_t* iter = rocksdb_writebatch_wi_create_iterator_with_base(wbi, base_iter);
+    rocksdb_iterator_t* iter =
+        rocksdb_writebatch_wi_create_iterator_with_base(wbi, base_iter);
     CheckCondition(!rocksdb_iter_valid(iter));
     rocksdb_iter_seek_to_first(iter);
     CheckCondition(rocksdb_iter_valid(iter));
@@ -1527,7 +1528,7 @@ int main(int argc, char** argv) {
     const rocksdb_snapshot_t* snapshot;
     snapshot = rocksdb_transactiondb_create_snapshot(txn_db);
     rocksdb_readoptions_set_snapshot(roptions, snapshot);
-  
+
     rocksdb_transactiondb_put(txn_db, woptions, "foo", 3, "hey", 3,  &err);
     CheckNoError(err);
 

db/compact_files_test.cc

@@ -357,6 +357,51 @@ TEST_F(CompactFilesTest, SentinelCompressionType) {
   }
 }
 
+TEST_F(CompactFilesTest, GetCompactionJobInfo) {
+  Options options;
+  options.create_if_missing = true;
+  // Disable RocksDB background compaction.
+  options.compaction_style = kCompactionStyleNone;
+  options.level0_slowdown_writes_trigger = 1000;
+  options.level0_stop_writes_trigger = 1000;
+  options.write_buffer_size = 65536;
+  options.max_write_buffer_number = 2;
+  options.compression = kNoCompression;
+  options.max_compaction_bytes = 5000;
+
+  // Add listener
+  FlushedFileCollector* collector = new FlushedFileCollector();
+  options.listeners.emplace_back(collector);
+
+  DB* db = nullptr;
+  DestroyDB(db_name_, options);
+  Status s = DB::Open(options, db_name_, &db);
+  assert(s.ok());
+  assert(db);
+
+  // create couple files
+  for (int i = 0; i < 500; ++i) {
+    db->Put(WriteOptions(), ToString(i), std::string(1000, 'a' + (i % 26)));
+  }
+  reinterpret_cast<DBImpl*>(db)->TEST_WaitForFlushMemTable();
+  auto l0_files_1 = collector->GetFlushedFiles();
+  CompactionOptions co;
+  co.compression = CompressionType::kLZ4Compression;
+  CompactionJobInfo compaction_job_info;
+  ASSERT_OK(
+      db->CompactFiles(co, l0_files_1, 0, -1, nullptr, &compaction_job_info));
+  ASSERT_EQ(compaction_job_info.base_input_level, 0);
+  ASSERT_EQ(compaction_job_info.cf_id, db->DefaultColumnFamily()->GetID());
+  ASSERT_EQ(compaction_job_info.cf_name, db->DefaultColumnFamily()->GetName());
+  ASSERT_EQ(compaction_job_info.compaction_reason,
+            CompactionReason::kManualCompaction);
+  ASSERT_EQ(compaction_job_info.compression, CompressionType::kLZ4Compression);
+  ASSERT_EQ(compaction_job_info.output_level, 0);
+  ASSERT_OK(compaction_job_info.status);
+  // no assertion failure
+  delete db;
+}
+
 }  // namespace rocksdb
 
 int main(int argc, char** argv) {

db/db_impl.h

@@ -192,13 +192,13 @@ class DBImpl : public DB {
                               const Slice* begin, const Slice* end) override;
 
   using DB::CompactFiles;
-  virtual Status CompactFiles(const CompactionOptions& compact_options,
-                              ColumnFamilyHandle* column_family,
-                              const std::vector<std::string>& input_file_names,
-                              const int output_level,
-                              const int output_path_id = -1,
-                              std::vector<std::string>* const output_file_names
-                              = nullptr) override;
+  virtual Status CompactFiles(
+      const CompactionOptions& compact_options,
+      ColumnFamilyHandle* column_family,
+      const std::vector<std::string>& input_file_names, const int output_level,
+      const int output_path_id = -1,
+      std::vector<std::string>* const output_file_names = nullptr,
+      CompactionJobInfo* compaction_job_info = nullptr) override;
 
   virtual Status PauseBackgroundWork() override;
   virtual Status ContinueBackgroundWork() override;
@@ -1054,7 +1054,8 @@ class DBImpl : public DB {
                           const std::vector<std::string>& input_file_names,
                           std::vector<std::string>* const output_file_names,
                           const int output_level, int output_path_id,
-                          JobContext* job_context, LogBuffer* log_buffer);
+                          JobContext* job_context, LogBuffer* log_buffer,
+                          CompactionJobInfo* compaction_job_info);
 
   // Wait for current IngestExternalFile() calls to finish.
   // REQUIRES: mutex_ held
@@ -1572,6 +1573,13 @@ class DBImpl : public DB {
   bool ShouldntRunManualCompaction(ManualCompactionState* m);
   bool HaveManualCompaction(ColumnFamilyData* cfd);
   bool MCOverlap(ManualCompactionState* m, ManualCompactionState* m1);
+#ifndef ROCKSDB_LITE
+  void BuildCompactionJobInfo(const ColumnFamilyData* cfd, Compaction* c,
+                              const Status& st,
+                              const CompactionJobStats& compaction_job_stats,
+                              const int job_id, const Version* current,
+                              CompactionJobInfo* compaction_job_info) const;
+#endif
 
   bool ShouldPurge(uint64_t file_number) const;
   void MarkAsGrabbedForPurge(uint64_t file_number);

db/db_impl_compaction_flush.cc

@@ -727,7 +727,8 @@ Status DBImpl::CompactFiles(const CompactionOptions& compact_options,
                             ColumnFamilyHandle* column_family,
                             const std::vector<std::string>& input_file_names,
                             const int output_level, const int output_path_id,
-                            std::vector<std::string>* const output_file_names) {
+                            std::vector<std::string>* const output_file_names,
+                            CompactionJobInfo* compaction_job_info) {
 #ifdef ROCKSDB_LITE
   (void)compact_options;
   (void)column_family;
@@ -735,6 +736,7 @@ Status DBImpl::CompactFiles(const CompactionOptions& compact_options,
   (void)output_level;
   (void)output_path_id;
   (void)output_file_names;
+  (void)compaction_job_info;
   // not supported in lite version
   return Status::NotSupported("Not supported in ROCKSDB LITE");
 #else
@@ -766,7 +768,7 @@ Status DBImpl::CompactFiles(const CompactionOptions& compact_options,
 
     s = CompactFilesImpl(compact_options, cfd, current, input_file_names,
                          output_file_names, output_level, output_path_id,
-                         &job_context, &log_buffer);
+                         &job_context, &log_buffer, compaction_job_info);
 
     current->Unref();
   }
@@ -806,7 +808,8 @@ Status DBImpl::CompactFilesImpl(
     const CompactionOptions& compact_options, ColumnFamilyData* cfd,
     Version* version, const std::vector<std::string>& input_file_names,
     std::vector<std::string>* const output_file_names, const int output_level,
-    int output_path_id, JobContext* job_context, LogBuffer* log_buffer) {
+    int output_path_id, JobContext* job_context, LogBuffer* log_buffer,
+    CompactionJobInfo* compaction_job_info) {
   mutex_.AssertHeld();
 
   if (shutting_down_.load(std::memory_order_acquire)) {
@@ -892,6 +895,7 @@ Status DBImpl::CompactFilesImpl(
     snapshot_checker = DisableGCSnapshotChecker::Instance();
   }
   assert(is_snapshot_supported_ || snapshots_.empty());
+  CompactionJobStats compaction_job_stats;
   CompactionJob compaction_job(
       job_context->job_id, c.get(), immutable_db_options_,
       env_options_for_compaction_, versions_.get(), &shutting_down_,
@@ -901,19 +905,7 @@ Status DBImpl::CompactFilesImpl(
       snapshot_checker, table_cache_, &event_logger_,
       c->mutable_cf_options()->paranoid_file_checks,
       c->mutable_cf_options()->report_bg_io_stats, dbname_,
-      nullptr);  // Here we pass a nullptr for CompactionJobStats because
-                 // CompactFiles does not trigger OnCompactionCompleted(),
-                 // which is the only place where CompactionJobStats is
-                 // returned.  The idea of not triggering OnCompationCompleted()
-                 // is that CompactFiles runs in the caller thread, so the user
-                 // should always know when it completes.  As a result, it makes
-                 // less sense to notify the users something they should already
-                 // know.
-                 //
-                 // In the future, if we would like to add CompactionJobStats
-                 // support for CompactFiles, we should have CompactFiles API
-                 // pass a pointer of CompactionJobStats as the out-value
-                 // instead of using EventListener.
+      &compaction_job_stats);
 
   // Creating a compaction influences the compaction score because the score
   // takes running compactions into account (by skipping files that are already
@@ -950,6 +942,11 @@ Status DBImpl::CompactFilesImpl(
 
   ReleaseFileNumberFromPendingOutputs(pending_outputs_inserted_elem);
 
+  if (compaction_job_info != nullptr) {
+    BuildCompactionJobInfo(cfd, c.get(), s, compaction_job_stats,
+                           job_context->job_id, version, compaction_job_info);
+  }
+
   if (status.ok()) {
     // Done
   } else if (status.IsShutdownInProgress()) {
@@ -1092,36 +1089,8 @@ void DBImpl::NotifyOnCompactionCompleted(
   TEST_SYNC_POINT("DBImpl::NotifyOnCompactionCompleted::UnlockMutex");
   {
     CompactionJobInfo info;
-    info.cf_id = cfd->GetID();
-    info.cf_name = cfd->GetName();
-    info.status = st;
-    info.thread_id = env_->GetThreadID();
-    info.job_id = job_id;
-    info.base_input_level = c->start_level();
-    info.output_level = c->output_level();
-    info.stats = compaction_job_stats;
-    info.table_properties = c->GetOutputTableProperties();
-    info.compaction_reason = c->compaction_reason();
-    info.compression = c->output_compression();
-    for (size_t i = 0; i < c->num_input_levels(); ++i) {
-      for (const auto fmd : *c->inputs(i)) {
-        auto fn = TableFileName(c->immutable_cf_options()->cf_paths,
-                                fmd->fd.GetNumber(), fmd->fd.GetPathId());
-        info.input_files.push_back(fn);
-        if (info.table_properties.count(fn) == 0) {
-          std::shared_ptr<const TableProperties> tp;
-          auto s = current->GetTableProperties(&tp, fmd, &fn);
-          if (s.ok()) {
-            info.table_properties[fn] = tp;
-          }
-        }
-      }
-    }
-    for (const auto newf : c->edit()->GetNewFiles()) {
-      info.output_files.push_back(TableFileName(
-          c->immutable_cf_options()->cf_paths, newf.second.fd.GetNumber(),
-          newf.second.fd.GetPathId()));
-    }
+    BuildCompactionJobInfo(cfd, c, st, compaction_job_stats, job_id, current,
+                           &info);
     for (auto listener : immutable_db_options_.listeners) {
       listener->OnCompactionCompleted(this, info);
     }
@@ -2762,6 +2731,45 @@ bool DBImpl::MCOverlap(ManualCompactionState* m, ManualCompactionState* m1) {
   return true;
 }
 
+#ifndef ROCKSDB_LITE
+void DBImpl::BuildCompactionJobInfo(
+    const ColumnFamilyData* cfd, Compaction* c, const Status& st,
+    const CompactionJobStats& compaction_job_stats, const int job_id,
+    const Version* current, CompactionJobInfo* compaction_job_info) const {
+  assert(compaction_job_info != nullptr);
+  compaction_job_info->cf_id = cfd->GetID();
+  compaction_job_info->cf_name = cfd->GetName();
+  compaction_job_info->status = st;
+  compaction_job_info->thread_id = env_->GetThreadID();
+  compaction_job_info->job_id = job_id;
+  compaction_job_info->base_input_level = c->start_level();
+  compaction_job_info->output_level = c->output_level();
+  compaction_job_info->stats = compaction_job_stats;
+  compaction_job_info->table_properties = c->GetOutputTableProperties();
+  compaction_job_info->compaction_reason = c->compaction_reason();
+  compaction_job_info->compression = c->output_compression();
+  for (size_t i = 0; i < c->num_input_levels(); ++i) {
+    for (const auto fmd : *c->inputs(i)) {
+      auto fn = TableFileName(c->immutable_cf_options()->cf_paths,
+                              fmd->fd.GetNumber(), fmd->fd.GetPathId());
+      compaction_job_info->input_files.push_back(fn);
+      if (compaction_job_info->table_properties.count(fn) == 0) {
+        shared_ptr<const TableProperties> tp;
+        auto s = current->GetTableProperties(&tp, fmd, &fn);
+        if (s.ok()) {
+          compaction_job_info->table_properties[fn] = tp;
+        }
+      }
+    }
+  }
+  for (const auto& newf : c->edit()->GetNewFiles()) {
+    compaction_job_info->output_files.push_back(
+        TableFileName(c->immutable_cf_options()->cf_paths,
+                      newf.second.fd.GetNumber(), newf.second.fd.GetPathId()));
+  }
+}
+#endif
+
 // SuperVersionContext gets created and destructed outside of the lock --
 // we use this conveniently to:
 // * malloc one SuperVersion() outside of the lock -- new_superversion

db/db_impl_readonly.h

@@ -77,8 +77,8 @@ class DBImplReadOnly : public DBImpl {
       ColumnFamilyHandle* /*column_family*/,
       const std::vector<std::string>& /*input_file_names*/,
       const int /*output_level*/, const int /*output_path_id*/ = -1,
-      std::vector<std::string>* const /*output_file_names*/ = nullptr
-      ) override {
+      std::vector<std::string>* const /*output_file_names*/ = nullptr,
+      CompactionJobInfo* /*compaction_job_info*/ = nullptr) override {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
 

db/db_test.cc

@@ -2606,8 +2606,8 @@ class ModelDB : public DB {
       ColumnFamilyHandle* /*column_family*/,
       const std::vector<std::string>& /*input_file_names*/,
       const int /*output_level*/, const int /*output_path_id*/ = -1,
-      std::vector<std::string>* const /*output_file_names*/ = nullptr
-      ) override {
+      std::vector<std::string>* const /*output_file_names*/ = nullptr,
+      CompactionJobInfo* /*compaction_job_info*/ = nullptr) override {
     return Status::NotSupported("Not supported operation.");
   }
 

include/rocksdb/c.h

@@ -637,7 +637,6 @@ extern ROCKSDB_LIBRARY_API rocksdb_iterator_t* rocksdb_writebatch_wi_create_iter
     rocksdb_iterator_t* base_iterator,
     rocksdb_column_family_handle_t* cf);
 
-
 /* Block based table options */
 
 extern ROCKSDB_LIBRARY_API rocksdb_block_based_table_options_t*

include/rocksdb/db.h

@@ -53,6 +53,9 @@ class WriteBatch;
 class Env;
 class EventListener;
 class TraceWriter;
+#ifdef ROCKSDB_LITE
+class CompactionJobInfo;
+#endif
 
 using std::unique_ptr;
 
@@ -834,18 +837,20 @@ class DB {
   virtual Status CompactFiles(
       const CompactionOptions& compact_options,
       ColumnFamilyHandle* column_family,
-      const std::vector<std::string>& input_file_names,
-      const int output_level, const int output_path_id = -1,
-      std::vector<std::string>* const output_file_names = nullptr) = 0;
+      const std::vector<std::string>& input_file_names, const int output_level,
+      const int output_path_id = -1,
+      std::vector<std::string>* const output_file_names = nullptr,
+      CompactionJobInfo* compaction_job_info = nullptr) = 0;
 
   virtual Status CompactFiles(
       const CompactionOptions& compact_options,
-      const std::vector<std::string>& input_file_names,
-      const int output_level, const int output_path_id = -1,
-      std::vector<std::string>* const output_file_names = nullptr) {
+      const std::vector<std::string>& input_file_names, const int output_level,
+      const int output_path_id = -1,
+      std::vector<std::string>* const output_file_names = nullptr,
+      CompactionJobInfo* compaction_job_info = nullptr) {
     return CompactFiles(compact_options, DefaultColumnFamily(),
                         input_file_names, output_level, output_path_id,
-                        output_file_names);
+                        output_file_names, compaction_job_info);
   }
 
   // This function will wait until all currently running background processes

include/rocksdb/sst_file_reader.h

@@ -7,9 +7,9 @@
 
 #ifndef ROCKSDB_LITE
 
-#include "rocksdb/slice.h"
-#include "rocksdb/options.h"
 #include "rocksdb/iterator.h"
+#include "rocksdb/options.h"
+#include "rocksdb/slice.h"
 #include "rocksdb/table_properties.h"
 
 namespace rocksdb {

include/rocksdb/table.h

@@ -454,8 +454,8 @@ class TableFactory {
   //     and cache the table object returned.
   // (2) SstFileDumper (for SST Dump) opens the table and dump the table
   //     contents using the iterator of the table.
-  // (3) DBImpl::IngestExternalFile() calls this function to read the contents of
-  //     the sst file it's attempting to add
+  // (3) DBImpl::IngestExternalFile() calls this function to read the contents
+  //     of the sst file it's attempting to add
   //
   // table_reader_options is a TableReaderOptions which contain all the
   //    needed parameters and configuration to open the table.

include/rocksdb/utilities/stackable_db.h

@@ -218,12 +218,13 @@ class StackableDB : public DB {
   virtual Status CompactFiles(
       const CompactionOptions& compact_options,
       ColumnFamilyHandle* column_family,
-      const std::vector<std::string>& input_file_names,
-      const int output_level, const int output_path_id = -1,
-      std::vector<std::string>* const output_file_names = nullptr) override {
-    return db_->CompactFiles(
-        compact_options, column_family, input_file_names,
-        output_level, output_path_id, output_file_names);
+      const std::vector<std::string>& input_file_names, const int output_level,
+      const int output_path_id = -1,
+      std::vector<std::string>* const output_file_names = nullptr,
+      CompactionJobInfo* compaction_job_info = nullptr) override {
+    return db_->CompactFiles(compact_options, column_family, input_file_names,
+                             output_level, output_path_id, output_file_names,
+                             compaction_job_info);
   }
 
   virtual Status PauseBackgroundWork() override {

java/rocksjni/statisticsjni.cc

@@ -10,25 +10,23 @@
 
 namespace rocksdb {
 
-  StatisticsJni::StatisticsJni(std::shared_ptr<Statistics> stats)
-      : StatisticsImpl(stats), m_ignore_histograms() {
-  }
+StatisticsJni::StatisticsJni(std::shared_ptr<Statistics> stats)
+    : StatisticsImpl(stats), m_ignore_histograms() {}
 
-  StatisticsJni::StatisticsJni(std::shared_ptr<Statistics> stats,
-      const std::set<uint32_t> ignore_histograms) : StatisticsImpl(stats),
-      m_ignore_histograms(ignore_histograms) {
-  }
+StatisticsJni::StatisticsJni(std::shared_ptr<Statistics> stats,
+                             const std::set<uint32_t> ignore_histograms)
+    : StatisticsImpl(stats), m_ignore_histograms(ignore_histograms) {}
 
-  bool StatisticsJni::HistEnabledForType(uint32_t type) const {
-    if (type >= HISTOGRAM_ENUM_MAX) {
-      return false;
-    }
-    
-    if (m_ignore_histograms.count(type) > 0) {
-        return false;
-    }
+bool StatisticsJni::HistEnabledForType(uint32_t type) const {
+  if (type >= HISTOGRAM_ENUM_MAX) {
+    return false;
+  }
 
-    return true;
+  if (m_ignore_histograms.count(type) > 0) {
+    return false;
   }
+
+  return true;
+}
 // @lint-ignore TXT4 T25377293 Grandfathered in
 };
\ No newline at end of file

java/src/main/java/org/rocksdb/WriteBatchWithIndex.java

@@ -129,12 +129,10 @@ public class WriteBatchWithIndex extends AbstractWriteBatch {
   public RocksIterator newIteratorWithBase(
       final ColumnFamilyHandle columnFamilyHandle,
       final RocksIterator baseIterator) {
-    RocksIterator iterator = new RocksIterator(
-        baseIterator.parent_,
-        iteratorWithBase(nativeHandle_,
-                columnFamilyHandle.nativeHandle_,
-                baseIterator.nativeHandle_));
-    //when the iterator is deleted it will also delete the baseIterator
+    RocksIterator iterator = new RocksIterator(baseIterator.parent_,
+        iteratorWithBase(
+            nativeHandle_, columnFamilyHandle.nativeHandle_, baseIterator.nativeHandle_));
+    // when the iterator is deleted it will also delete the baseIterator
     baseIterator.disOwnNativeHandle();
     return iterator;
   }
@@ -151,8 +149,7 @@ public class WriteBatchWithIndex extends AbstractWriteBatch {
    * point-in-timefrom baseIterator and modifications made in this write batch.
    */
   public RocksIterator newIteratorWithBase(final RocksIterator baseIterator) {
-    return newIteratorWithBase(baseIterator.parent_.getDefaultColumnFamily(),
-        baseIterator);
+    return newIteratorWithBase(baseIterator.parent_.getDefaultColumnFamily(), baseIterator);
   }
 
   /**
@@ -295,8 +292,8 @@ public class WriteBatchWithIndex extends AbstractWriteBatch {
       final boolean overwriteKey);
   private native long iterator0(final long handle);
   private native long iterator1(final long handle, final long cfHandle);
-  private native long iteratorWithBase(final long handle,
-      final long baseIteratorHandle, final long cfHandle);
+  private native long iteratorWithBase(
+      final long handle, final long baseIteratorHandle, final long cfHandle);
   private native byte[] getFromBatch(final long handle, final long optHandle,
       final byte[] key, final int keyLen);
   private native byte[] getFromBatch(final long handle, final long optHandle,

java/src/test/java/org/rocksdb/WriteBatchWithIndexTest.java

@@ -47,7 +47,6 @@ public class WriteBatchWithIndexTest {
       try (final WriteBatchWithIndex wbwi = new WriteBatchWithIndex(true);
            final RocksIterator base = db.newIterator();
            final RocksIterator it = wbwi.newIteratorWithBase(base)) {
-
         it.seek(k1);
         assertThat(it.isValid()).isTrue();
         assertThat(it.key()).isEqualTo(k1);
@@ -421,8 +420,8 @@ public class WriteBatchWithIndexTest {
       final ReadOptions readOptions, final WriteBatchWithIndex wbwi,
       final String skey) {
     final byte[] key = skey.getBytes();
-    try(final RocksIterator baseIterator = db.newIterator(readOptions);
-        final RocksIterator iterator = wbwi.newIteratorWithBase(baseIterator)) {
+    try (final RocksIterator baseIterator = db.newIterator(readOptions);
+         final RocksIterator iterator = wbwi.newIteratorWithBase(baseIterator)) {
       iterator.seek(key);
 
       // Arrays.equals(key, iterator.key()) ensures an exact match in Rocks,

monitoring/statistics.cc

@@ -357,11 +357,12 @@ std::string StatisticsImpl::ToString() const {
     getHistogramImplLocked(h.first)->Data(&hData);
     // don't handle failures - buffer should always be big enough and arguments
     // should be provided correctly
-    int ret = snprintf(
-        buffer, kTmpStrBufferSize,
-        "%s P50 : %f P95 : %f P99 : %f P100 : %f COUNT : %" PRIu64 " SUM : %"
-        PRIu64 "\n", h.second.c_str(), hData.median, hData.percentile95,
-        hData.percentile99, hData.max, hData.count, hData.sum);
+    int ret =
+        snprintf(buffer, kTmpStrBufferSize,
+                 "%s P50 : %f P95 : %f P99 : %f P100 : %f COUNT : %" PRIu64
+                 " SUM : %" PRIu64 "\n",
+                 h.second.c_str(), hData.median, hData.percentile95,
+                 hData.percentile99, hData.max, hData.count, hData.sum);
     if (ret < 0 || ret >= kTmpStrBufferSize) {
       assert(false);
       continue;

table/sst_file_reader.cc

@@ -10,8 +10,8 @@
 #include "db/db_iter.h"
 #include "options/cf_options.h"
 #include "table/get_context.h"
-#include "table/table_reader.h"
 #include "table/table_builder.h"
+#include "table/table_reader.h"
 #include "util/file_reader_writer.h"
 
 namespace rocksdb {
@@ -31,8 +31,7 @@ struct SstFileReader::Rep {
         moptions(ColumnFamilyOptions(options)) {}
 };
 
-SstFileReader::SstFileReader(const Options& options)
-    : rep_(new Rep(options)) {}
+SstFileReader::SstFileReader(const Options& options) : rep_(new Rep(options)) {}
 
 SstFileReader::~SstFileReader() {}
 
@@ -60,18 +59,19 @@ Status SstFileReader::Open(const std::string& file_path) {
 
 Iterator* SstFileReader::NewIterator(const ReadOptions& options) {
   auto r = rep_.get();
-  auto sequence = options.snapshot != nullptr ?
-                  options.snapshot->GetSequenceNumber() :
-                  kMaxSequenceNumber;
-  auto internal_iter = r->table_reader->NewIterator(
-      options, r->moptions.prefix_extractor.get());
+  auto sequence = options.snapshot != nullptr
+                      ? options.snapshot->GetSequenceNumber()
+                      : kMaxSequenceNumber;
+  auto internal_iter =
+      r->table_reader->NewIterator(options, r->moptions.prefix_extractor.get());
   return NewDBIterator(r->options.env, options, r->ioptions, r->moptions,
                        r->ioptions.user_comparator, internal_iter, sequence,
                        r->moptions.max_sequential_skip_in_iterations,
                        nullptr /* read_callback */);
 }
 
-std::shared_ptr<const TableProperties> SstFileReader::GetTableProperties() const {
+std::shared_ptr<const TableProperties> SstFileReader::GetTableProperties()
+    const {
   return rep_->table_reader->GetTableProperties();
 }
 

table/sst_file_reader_test.cc

@@ -39,8 +39,8 @@ class SstFileReaderTest : public testing::Test {
     ASSERT_OK(writer.Open(sst_name_));
     for (size_t i = 0; i + 2 < keys.size(); i += 3) {
       ASSERT_OK(writer.Put(keys[i], keys[i]));
-      ASSERT_OK(writer.Merge(keys[i+1], EncodeAsUint64(i+1)));
-      ASSERT_OK(writer.Delete(keys[i+2]));
+      ASSERT_OK(writer.Merge(keys[i + 1], EncodeAsUint64(i + 1)));
+      ASSERT_OK(writer.Delete(keys[i + 2]));
     }
     ASSERT_OK(writer.Finish());
 
@@ -56,8 +56,8 @@ class SstFileReaderTest : public testing::Test {
       ASSERT_EQ(iter->value().compare(keys[i]), 0);
       iter->Next();
       ASSERT_TRUE(iter->Valid());
-      ASSERT_EQ(iter->key().compare(keys[i+1]), 0);
-      ASSERT_EQ(iter->value().compare(EncodeAsUint64(i+1)), 0);
+      ASSERT_EQ(iter->key().compare(keys[i + 1]), 0);
+      ASSERT_EQ(iter->value().compare(EncodeAsUint64(i + 1)), 0);
       iter->Next();
     }
     ASSERT_FALSE(iter->Valid());
@@ -99,7 +99,8 @@ int main(int argc, char** argv) {
 #include <stdio.h>
 
 int main(int /*argc*/, char** /*argv*/) {
-  fprintf(stderr, "SKIPPED as SstFileReader is not supported in ROCKSDB_LITE\n");
+  fprintf(stderr,
+          "SKIPPED as SstFileReader is not supported in ROCKSDB_LITE\n");
   return 0;
 }
 

tools/db_bench_tool.cc

@@ -4580,8 +4580,8 @@ void VerifyDBFromDB(std::string& truth_db_name) {
       if (FLAGS_max_scan_distance != 0) {
         if (FLAGS_reverse_iterator) {
           GenerateKeyFromInt(
-              (uint64_t)std::max((int64_t)0,
-                                 seek_pos - FLAGS_max_scan_distance),
+              static_cast<uint64_t>(std::max(
+                  static_cast<int64_t>(0), seek_pos - FLAGS_max_scan_distance)),
               FLAGS_num, &lower_bound);
           options.iterate_lower_bound = &lower_bound;
         } else {

tools/ldb_cmd.cc

@@ -2846,7 +2846,8 @@ void DumpSstFile(std::string filename, bool output_hex, bool show_properties) {
   }
   // no verification
   rocksdb::SstFileDumper dumper(filename, false, output_hex);
-  Status st = dumper.ReadSequential(true, std::numeric_limits<uint64_t>::max(), false,  // has_from
+  Status st = dumper.ReadSequential(true, std::numeric_limits<uint64_t>::max(),
+                                    false,            // has_from
                                     from_key, false,  // has_to
                                     to_key);
   if (!st.ok()) {

tools/sst_dump_tool.cc

@@ -570,8 +570,7 @@ int SSTDumpTool::Run(int argc, char** argv) {
       filename = std::string(dir_or_file) + "/" + filename;
     }
 
-    rocksdb::SstFileDumper dumper(filename, verify_checksum,
-                                  output_hex);
+    rocksdb::SstFileDumper dumper(filename, verify_checksum, output_hex);
     if (!dumper.getStatus().ok()) {
       fprintf(stderr, "%s: %s\n", filename.c_str(),
               dumper.getStatus().ToString().c_str());

utilities/transactions/transaction_base.cc

@@ -180,7 +180,7 @@ Status TransactionBaseImpl::RollbackToSavePoint() {
     return Status::NotFound();
   }
 }
-  
+
 Status TransactionBaseImpl::PopSavePoint() {
   if (save_points_ == nullptr ||
       save_points_->empty()) {
@@ -189,7 +189,7 @@ Status TransactionBaseImpl::PopSavePoint() {
     return Status::NotFound();
   }
 
-  assert(!save_points_->empty()); 
+  assert(!save_points_->empty());
   save_points_->pop();
   return write_batch_.PopSavePoint();
 }