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Íñigo Goiri commented on HDFS-15217: ------------------------------------ [~ahussein] that's concerning. Do you have specific numbers? > Add more information to longest write/read lock held log > -------------------------------------------------------- > > Key: HDFS-15217 > URL: https://issues.apache.org/jira/browse/HDFS-15217 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Toshihiro Suzuki > Assignee: Toshihiro Suzuki > Priority: Major > Fix For: 3.4.0 > > > Currently, we can see the stack trace in the longest write/read lock held > log, but sometimes we need more information, for example, a target path of > deletion: > {code:java} > 2020-03-10 21:51:21,116 [main] INFO namenode.FSNamesystem > (FSNamesystemLock.java:writeUnlock(276)) - Number of suppressed > write-lock reports: 0 > Longest write-lock held at 2020-03-10 21:51:21,107+0900 for 6ms via > java.lang.Thread.getStackTrace(Thread.java:1559) > org.apache.hadoop.util.StringUtils.getStackTrace(StringUtils.java:1058) > org.apache.hadoop.hdfs.server.namenode.FSNamesystemLock.writeUnlock(FSNamesystemLock.java:257) > org.apache.hadoop.hdfs.server.namenode.FSNamesystemLock.writeUnlock(FSNamesystemLock.java:233) > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.writeUnlock(FSNamesystem.java:1706) > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:3188) > ... > {code} > Adding more information (opName, path, etc.) to the log is useful to > troubleshoot. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org