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Posted to commits@iotdb.apache.org by ha...@apache.org on 2022/10/14 02:54:04 UTC
[iotdb] 01/01: Add check to avoid flush empty chunk group
This is an automated email from the ASF dual-hosted git repository.
haonan pushed a commit to branch Avoid_flush_empty_chunkGroup
in repository https://gitbox.apache.org/repos/asf/iotdb.git
commit d7a129b24d2aa52963a37d1363f74d1a696ca839
Author: HTHou <hh...@outlook.com>
AuthorDate: Fri Oct 14 10:53:46 2022 +0800
Add check to avoid flush empty chunk group
---
.../main/java/org/apache/iotdb/db/engine/flush/MemTableFlushTask.java | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/server/src/main/java/org/apache/iotdb/db/engine/flush/MemTableFlushTask.java b/server/src/main/java/org/apache/iotdb/db/engine/flush/MemTableFlushTask.java
index 5ab620f7fd..5544e596de 100644
--- a/server/src/main/java/org/apache/iotdb/db/engine/flush/MemTableFlushTask.java
+++ b/server/src/main/java/org/apache/iotdb/db/engine/flush/MemTableFlushTask.java
@@ -125,6 +125,10 @@ public class MemTableFlushTask {
encodingTaskQueue.put(new StartFlushGroupIOTask(deviceID.toStringID()));
final Map<String, IWritableMemChunk> value = memTableMap.get(deviceID).getMemChunkMap();
+ // skip the empty device/chunk group
+ if (value.isEmpty()) {
+ continue;
+ }
for (Map.Entry<String, IWritableMemChunk> iWritableMemChunkEntry : value.entrySet()) {
long startTime = System.currentTimeMillis();
IWritableMemChunk series = iWritableMemChunkEntry.getValue();