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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2020/06/12 08:49:33 UTC
[GitHub] [incubator-iotdb] qiaojialin opened a new pull request #1356: Accelerate cache usage: combine get and contains
qiaojialin opened a new pull request #1356:
URL: https://github.com/apache/incubator-iotdb/pull/1356
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[GitHub] [incubator-iotdb] qiaojialin commented on a change in pull request #1356: Accelerate cache usage: combine get and contains
Posted by GitBox <gi...@apache.org>.
qiaojialin commented on a change in pull request #1356:
URL: https://github.com/apache/incubator-iotdb/pull/1356#discussion_r439698953
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/cache/ChunkMetadataCache.java
##########
@@ -20,6 +20,7 @@
import java.io.IOException;
import java.util.ArrayList;
+import java.util.Collections;
Review comment:
fixed
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/cache/ChunkCache.java
##########
@@ -93,40 +93,33 @@ public Chunk get(ChunkMetadata chunkMetaData, TsFileSequenceReader reader) throw
try {
lock.readLock().lock();
- if (lruCache.containsKey(chunkMetaData)) {
+ Chunk chunk = lruCache.get(chunkMetaData);
+ if (chunk != null) {
cacheHitNum.incrementAndGet();
printCacheLog(true);
- Chunk chunk = lruCache.get(chunkMetaData);
return new Chunk(chunk.getHeader(), chunk.getData().duplicate(), chunk.getDeletedAt());
}
} finally {
lock.readLock().unlock();
}
- Lock cacheLock = lock.writeLock();
Review comment:
fixed
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[GitHub] [incubator-iotdb] sonarcloud[bot] removed a comment on pull request #1356: Accelerate cache usage: combine get and contains
Posted by GitBox <gi...@apache.org>.
sonarcloud[bot] removed a comment on pull request #1356:
URL: https://github.com/apache/incubator-iotdb/pull/1356#issuecomment-643173615
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[GitHub] [incubator-iotdb] samperson1997 commented on a change in pull request #1356: Accelerate cache usage: combine get and contains
Posted by GitBox <gi...@apache.org>.
samperson1997 commented on a change in pull request #1356:
URL: https://github.com/apache/incubator-iotdb/pull/1356#discussion_r439350970
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/cache/ChunkMetadataCache.java
##########
@@ -20,6 +20,7 @@
import java.io.IOException;
import java.util.ArrayList;
+import java.util.Collections;
Review comment:
useless import
##########
File path: server/src/main/java/org/apache/iotdb/db/engine/cache/ChunkCache.java
##########
@@ -93,40 +93,33 @@ public Chunk get(ChunkMetadata chunkMetaData, TsFileSequenceReader reader) throw
try {
lock.readLock().lock();
- if (lruCache.containsKey(chunkMetaData)) {
+ Chunk chunk = lruCache.get(chunkMetaData);
+ if (chunk != null) {
cacheHitNum.incrementAndGet();
printCacheLog(true);
- Chunk chunk = lruCache.get(chunkMetaData);
return new Chunk(chunk.getHeader(), chunk.getData().duplicate(), chunk.getDeletedAt());
}
} finally {
lock.readLock().unlock();
}
- Lock cacheLock = lock.writeLock();
Review comment:
useless import: `java.util.concurrent.locks.Lock`
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[GitHub] [incubator-iotdb] sonarcloud[bot] commented on pull request #1356: Accelerate cache usage: combine get and contains
Posted by GitBox <gi...@apache.org>.
sonarcloud[bot] commented on pull request #1356:
URL: https://github.com/apache/incubator-iotdb/pull/1356#issuecomment-643556199
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[GitHub] [incubator-iotdb] qiaojialin merged pull request #1356: Accelerate cache usage: combine get and contains
Posted by GitBox <gi...@apache.org>.
qiaojialin merged pull request #1356:
URL: https://github.com/apache/incubator-iotdb/pull/1356
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[GitHub] [incubator-iotdb] sonarcloud[bot] commented on pull request #1356: Accelerate cache usage: combine get and contains
Posted by GitBox <gi...@apache.org>.
sonarcloud[bot] commented on pull request #1356:
URL: https://github.com/apache/incubator-iotdb/pull/1356#issuecomment-643173615
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