Added debug logging for table stats (#10065)

Author: aavdonkin

ydb/core/tx/columnshard/engines/column_engine_logs.cpp

@@ -60,8 +60,14 @@ const TColumnEngineStats& TColumnEngineForLogs::GetTotalStats() {
 
 void TColumnEngineForLogs::UpdatePortionStats(const TPortionInfo& portionInfo, EStatsUpdateType updateType,
                                             const TPortionInfo* exPortionInfo) {
-    UpdatePortionStats(Counters, portionInfo, updateType, exPortionInfo);
-
+    if (IS_LOG_PRIORITY_ENABLED(NActors::NLog::PRI_DEBUG, NKikimrServices::TX_COLUMNSHARD)) {
+        auto before = Counters.Active();
+        UpdatePortionStats(Counters, portionInfo, updateType, exPortionInfo);
+        auto after = Counters.Active();
+        AFL_DEBUG(NKikimrServices::TX_COLUMNSHARD)("event", "portion_stats_updated")("type", updateType)("path_id", portionInfo.GetPathId())("portion", portionInfo.GetPortionId())("before_size", before.Bytes)("after_size", after.Bytes)("before_rows", before.Rows)("after_rows", after.Rows);
+    } else {
+        UpdatePortionStats(Counters, portionInfo, updateType, exPortionInfo);
+    }
     const ui64 pathId = portionInfo.GetPathId();
     Y_ABORT_UNLESS(pathId);
     if (!PathStats.contains(pathId)) {

ydb/core/tx/columnshard/engines/ya.make

@@ -16,6 +16,8 @@ SRCS(
     defs.cpp
 )
 
+GENERATE_ENUM_SERIALIZATION(column_engine_logs.h)
+
 PEERDIR(
     contrib/libs/apache/arrow
     ydb/core/base

ydb/core/tx/schemeshard/schemeshard__table_stats.cpp

@@ -248,6 +248,9 @@ bool TTxStoreTableStats::PersistSingleStats(const TPathId& pathId,
     }
 
     TShardIdx shardIdx = Self->TabletIdToShardIdx[datashardId];
+    LOG_DEBUG_S(ctx, NKikimrServices::FLAT_TX_SCHEMESHARD,
+        "PersistSingleStats for pathId " << pathId.LocalPathId << " shard idx " << shardIdx << " data size " << dataSize << " row count " << rowCount
+    );
     const auto* shardInfo = Self->ShardInfos.FindPtr(shardIdx);
     if (!shardInfo) {
         LOG_DEBUG_S(ctx, NKikimrServices::FLAT_TX_SCHEMESHARD,