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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2020/12/31 06:30:56 UTC
[GitHub] [iotdb] zhanglingzhe0820 opened a new pull request #2398: Revert inplace merge
zhanglingzhe0820 opened a new pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398
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[GitHub] [iotdb] sonarcloud[bot] commented on pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
sonarcloud[bot] commented on pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#issuecomment-757748481
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[GitHub] [iotdb] sonarcloud[bot] commented on pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
sonarcloud[bot] commented on pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#issuecomment-755075816
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[GitHub] [iotdb] EJTTianYu commented on a change in pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu commented on a change in pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#discussion_r552447341
##########
File path: server/src/test/java/org/apache/iotdb/db/engine/storagegroup/StorageGroupProcessorTest.java
##########
@@ -582,6 +582,11 @@ public void testMerge()
}
processor.syncCloseAllWorkingTsFileProcessors();
+ try {
+ Thread.sleep(1000);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
Review comment:
using a sleep method to control the CI may be not a good idea...
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[GitHub] [iotdb] EJTTianYu commented on a change in pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu commented on a change in pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#discussion_r550435456
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/merge/task/MergeFileTask.java
##########
@@ -195,7 +318,6 @@ private void moveUnmergedToNew(TsFileResource seqFile) throws IOException {
ChunkCache.getInstance().clear();
ChunkMetadataCache.getInstance().clear();
TimeSeriesMetadataCache.getInstance().clear();
- FileReaderManager.getInstance().closeFileAndRemoveReader(seqFile.getTsFilePath());
Review comment:
it is necessary as the old tsfile's cache is invalid
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[GitHub] [iotdb] sonarcloud[bot] commented on pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
sonarcloud[bot] commented on pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#issuecomment-755115737
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[GitHub] [iotdb] sonarcloud[bot] removed a comment on pull request #2398: Revert inplace merge
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[GitHub] [iotdb] EJTTianYu commented on a change in pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu commented on a change in pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#discussion_r552447067
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/merge/task/MergeFileTask.java
##########
@@ -195,7 +318,6 @@ private void moveUnmergedToNew(TsFileResource seqFile) throws IOException {
ChunkCache.getInstance().clear();
ChunkMetadataCache.getInstance().clear();
TimeSeriesMetadataCache.getInstance().clear();
- FileReaderManager.getInstance().closeFileAndRemoveReader(seqFile.getTsFilePath());
Review comment:
add this line to your changed code.
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[GitHub] [iotdb] sonarcloud[bot] commented on pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
sonarcloud[bot] commented on pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#issuecomment-758511096
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[GitHub] [iotdb] EJTTianYu commented on a change in pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu commented on a change in pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#discussion_r552446286
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/compaction/level/LevelCompactionTsFileManagement.java
##########
@@ -498,6 +498,7 @@ private void merge(List<List<TsFileResource>> mergeResources, boolean sequence,
return;
}
}
+ isSeqMerging = true;
Review comment:
there will be a deadlock problem here when ```isSeqMerging = true``` and unseq merge is called in line 509
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[GitHub] [iotdb] EJTTianYu commented on a change in pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu commented on a change in pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#discussion_r550434671
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/merge/task/MergeFileTask.java
##########
@@ -225,4 +347,13 @@ private long writeUnmergedChunks(List<Long> chunkStartTimes,
}
return maxVersion;
}
-}
+
+ private File getNextMergeVersionFile(File seqFile) {
Review comment:
remove the method as it is never used
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[GitHub] [iotdb] sonarcloud[bot] removed a comment on pull request #2398: Revert inplace merge
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URL: https://github.com/apache/iotdb/pull/2398#issuecomment-754017775
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[GitHub] [iotdb] zhanglingzhe0820 commented on a change in pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
zhanglingzhe0820 commented on a change in pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#discussion_r551267586
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/merge/task/MergeFileTask.java
##########
@@ -225,4 +347,13 @@ private long writeUnmergedChunks(List<Long> chunkStartTimes,
}
return maxVersion;
}
-}
+
+ private File getNextMergeVersionFile(File seqFile) {
Review comment:
okay, I will fix it
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/merge/task/MergeFileTask.java
##########
@@ -195,7 +318,6 @@ private void moveUnmergedToNew(TsFileResource seqFile) throws IOException {
ChunkCache.getInstance().clear();
ChunkMetadataCache.getInstance().clear();
TimeSeriesMetadataCache.getInstance().clear();
- FileReaderManager.getInstance().closeFileAndRemoveReader(seqFile.getTsFilePath());
Review comment:
okay, I will fix it
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/merge/task/MergeFileTask.java
##########
@@ -19,11 +19,17 @@
package org.apache.iotdb.db.engine.merge.task;
+import static org.apache.iotdb.tsfile.common.constant.TsFileConstant.TSFILE_SUFFIX;
+
import java.io.File;
import java.io.IOException;
+import java.util.HashMap;
+import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
+import java.util.Set;
Review comment:
okay, I will fix it
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[GitHub] [iotdb] EJTTianYu commented on a change in pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu commented on a change in pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#discussion_r552446286
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/compaction/level/LevelCompactionTsFileManagement.java
##########
@@ -498,6 +498,7 @@ private void merge(List<List<TsFileResource>> mergeResources, boolean sequence,
return;
}
}
+ isSeqMerging = true;
Review comment:
there will be a deadlock problem here when ```isSeqMerging = true``` and unseq merge is called in line 510
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[GitHub] [iotdb] EJTTianYu commented on a change in pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu commented on a change in pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#discussion_r550436003
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/merge/task/MergeFileTask.java
##########
@@ -19,11 +19,17 @@
package org.apache.iotdb.db.engine.merge.task;
+import static org.apache.iotdb.tsfile.common.constant.TsFileConstant.TSFILE_SUFFIX;
+
import java.io.File;
import java.io.IOException;
+import java.util.HashMap;
+import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
+import java.util.Set;
Review comment:
unused import can be deleted by idea using ```control+option+O```
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[GitHub] [iotdb] sonarcloud[bot] removed a comment on pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
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URL: https://github.com/apache/iotdb/pull/2398#issuecomment-752863715
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[GitHub] [iotdb] sonarcloud[bot] commented on pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
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[GitHub] [iotdb] sonarcloud[bot] removed a comment on pull request #2398: Revert inplace merge
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[GitHub] [iotdb] sonarcloud[bot] removed a comment on pull request #2398: Revert inplace merge
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[GitHub] [iotdb] EJTTianYu commented on a change in pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu commented on a change in pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#discussion_r552446723
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/compaction/TsFileManagement.java
##########
@@ -197,6 +198,16 @@ public synchronized void merge(boolean fullMerge, List<TsFileResource> seqMergeL
}
return;
}
+ // wait until seq merge has finished
Review comment:
look at the deadLock problem at LevelCompactionTsFileManagement
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[GitHub] [iotdb] EJTTianYu commented on pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu commented on pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398#issuecomment-757704076
From my point of view, using this solution to control UT is a bit tricky. The UT is ```IoTDBMergeTest.java ```
If it's just a CI problem, then it's approve here
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[GitHub] [iotdb] EJTTianYu merged pull request #2398: Revert inplace merge
Posted by GitBox <gi...@apache.org>.
EJTTianYu merged pull request #2398:
URL: https://github.com/apache/iotdb/pull/2398
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[GitHub] [iotdb] sonarcloud[bot] commented on pull request #2398: Revert inplace merge
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URL: https://github.com/apache/iotdb/pull/2398#issuecomment-752863715
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