Viraj Jasani created HBASE-28144:
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Summary: Canary publish read failure fails with NPE if region
location is null
Key: HBASE-28144
URL: https://issues.apache.org/jira/browse/HBASE-28144
Project: HBase
Issue Type: Bug
Affects Versions: 2.5.5
Reporter: Viraj Jasani
Fix For: 2.6.0, 2.4.18, 2.5.6, 3.0.0-beta-1
Region with null server name causes canary failures while publishing read
failure i.e. while updating perServerFailuresCount map:
{code:java}
2023-10-09 15:24:11 [CanaryMonitor-1696864805801] ERROR tool.Canary(1480):
Sniff region failed!
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at
org.apache.hadoop.hbase.tool.CanaryTool$RegionMonitor.run(CanaryTool.java:1478)
at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.NullPointerException
at
java.util.concurrent.ConcurrentHashMap.compute(ConcurrentHashMap.java:1837)
at
org.apache.hadoop.hbase.tool.CanaryTool$RegionStdOutSink.incFailuresCountDetails(CanaryTool.java:327)
at
org.apache.hadoop.hbase.tool.CanaryTool$RegionStdOutSink.publishReadFailure(CanaryTool.java:353)
at
org.apache.hadoop.hbase.tool.CanaryTool$RegionTask.readColumnFamily(CanaryTool.java:548)
at
org.apache.hadoop.hbase.tool.CanaryTool$RegionTask.read(CanaryTool.java:587)
at
org.apache.hadoop.hbase.tool.CanaryTool$RegionTask.call(CanaryTool.java:502)
at
org.apache.hadoop.hbase.tool.CanaryTool$RegionTask.call(CanaryTool.java:470)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
... 1 more {code}
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