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Wei-Chiu Chuang commented on HADOOP-15684: ------------------------------------------ Does it actually affect Hadoop 2.75. and 2.9.1? The MultipleNameNode was added in HDFS-6440 and is not in Hadoop 2.x > triggerActiveLogRoll stuck on dead name node, when ConnectTimeoutException > happens. > ------------------------------------------------------------------------------------ > > Key: HADOOP-15684 > URL: https://issues.apache.org/jira/browse/HADOOP-15684 > Project: Hadoop Common > Issue Type: Bug > Components: ha > Affects Versions: 2.7.5, 2.9.1 > Reporter: Rong Tang > Priority: Critical > Attachments: FixRollEditLog.patch, > hadoop--rollingUpgrade-BN2SCH070021402.log > > > When name node call triggerActiveLogRoll, and the cachedActiveProxy is a dead > name node, it will throws a ConnectTimeoutException, expected behavior is to > try next NN, but current logic doesn't do so, instead, it keeps trying the > dead, mistakenly take it as active. > > 2018-08-17 10:02:12,001 WARN [Edit log tailer] > org.apache.hadoop.hdfs.server.namenode.ha.EditLogTailer: Unable to trigger a > roll of the active NN > org.apache.hadoop.net.ConnectTimeoutException: Call From > BN2SCH070021402/25.126.188.193 to BN2SCH070041016.ap.gbl:8020 failed on > socket timeout exception: org.apache.hadoop.net.ConnectTimeoutException: > 20000 millis timeout > org.apache.hadoop.hdfs.server.namenode.ha.EditLogTailer$2.doWork(EditLogTailer.java:298) > > C:\Users\rotang>ping BN2SCH070041016 > Pinging BN2SCH070041016 [25.126.141.79] with 32 bytes of data: > Request timed out. > Request timed out. > Request timed out. > Request timed out. > > Attachment is a log file saying how it repeatedly retries a dead name node, > and a fix patch. > > -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org