snvijaya commented on a change in pull request #1898:
URL: https://github.com/apache/hadoop/pull/1898#discussion_r686581385
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File path:
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/ReadBufferManager.java
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@@ -253,7 +258,12 @@ private synchronized boolean tryEvict() {
}
private boolean evict(final ReadBuffer buf) {
- freeList.push(buf.getBufferindex());
+ // As failed ReadBuffers (bufferIndx = -1) are saved in completedReadList,
+ // avoid adding it to freeList.
+ if (buf.getBufferindex() != -1) {
+ freeList.push(buf.getBufferindex());
+ }
Review comment:
Its set to -1 when read fails. You will find the diff for this in
ReadBuffer.java line 110.
There is an issue with this commit though, for which a hotfix was made.
Incase its relevant to your change ->
https://issues.apache.org/jira/browse/HADOOP-17301
Will check on your PR by EOW.
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