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ASF GitHub Bot logged work on HDFS-16535: ----------------------------------------- Author: ASF GitHub Bot Created on: 15/Apr/22 09:14 Start Date: 15/Apr/22 09:14 Worklog Time Spent: 10m Work Description: leosunli commented on code in PR #4158: URL: https://github.com/apache/hadoop/pull/4158#discussion_r851165931 ########## hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/shortcircuit/TestShortCircuitCache.java: ########## @@ -957,6 +958,83 @@ public void testDomainSocketClosedByDN() throws Exception { } } + // Regression test for HDFS-16473 Review Comment: I don't quite understand the connection between this UT and HDFS-16473. ########## hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/shortcircuit/ShortCircuitCache.java: ########## @@ -240,7 +245,7 @@ public void run() { } else { shm.getEndpointShmManager().shutdown(shm); IOUtilsClient.cleanupWithLogger(LOG, domainSocket, out); - domainSocket = null; Review Comment: why do you remove the line 243? If remove it, the line 228 looks redundant. Issue Time Tracking ------------------- Worklog Id: (was: 757365) Time Spent: 1h (was: 50m) > SlotReleaser should reuse the domain socket based on socket paths > ----------------------------------------------------------------- > > Key: HDFS-16535 > URL: https://issues.apache.org/jira/browse/HDFS-16535 > Project: Hadoop HDFS > Issue Type: Bug > Components: hdfs-client > Affects Versions: 3.3.1, 3.4.0 > Reporter: Quanlong Huang > Priority: Major > Labels: pull-request-available > Time Spent: 1h > Remaining Estimate: 0h > > HDFS-13639 improves the performance of short-circuit shm slot releasing by > reusing the domain socket that the client previously used to send release > request to the DataNode. > This is good when there are only one DataNode locates with the client (truth > in most of the production environment). However, if we launch multiple > DataNodes on a machine (usually for testing, e.g. Impala's end-to-end tests), > the request could be sent to the wrong DataNode. See an example in > IMPALA-11234. -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org