[HDFS-14934] [SBN Read] Standby NN throws many InterruptedExceptions when dfs.ha.tail-edits.period is 0

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.3.0, 3.1.4, 3.2.2, 2.10.1
• Assignee: Ayush Saxena
• Reporter: Takanobu Asanuma
• Created: 25/Oct/19 07:57
• Updated: 28/Dec/19 15:08
• Resolved: 28/Dec/19 13:29

Description

When dfs.ha.tail-edits.period is 0ms (or very short-time), there are many warn logs in standby NN.

2019-10-25 16:25:46,945 [Logger channel (from parallel executor) to <nn hostname>/<ip address>:<port>] WARN  concurrent.ExecutorHelper (ExecutorHelper.java:logThrowableFromAfterExecute(55)) - Thread (Thread[Logger channel (from parallel executor) to <nn hostname>/<ip address>:<port>,5,main]) interrupted: 
java.lang.InterruptedException
	at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:509)
	at com.google.common.util.concurrent.FluentFuture$TrustedFuture.get(FluentFuture.java:82)
	at org.apache.hadoop.util.concurrent.ExecutorHelper.logThrowableFromAfterExecute(ExecutorHelper.java:48)
	at org.apache.hadoop.util.concurrent.HadoopThreadPoolExecutor.afterExecute(HadoopThreadPoolExecutor.java:90)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1157)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

Issue Links

• is caused by: HDFS-14655 [SBN Read] Namenode crashes if one of The JN is down