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Posted to issues@hbase.apache.org by "Appy (JIRA)" <ji...@apache.org> on 2015/12/22 11:22:46 UTC
[jira] [Updated] (HBASE-14885) NullPointerException in
HMaster#normalizeRegions() due to missing TableDescriptor
[ https://issues.apache.org/jira/browse/HBASE-14885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Appy updated HBASE-14885:
-------------------------
Component/s: master
> NullPointerException in HMaster#normalizeRegions() due to missing TableDescriptor
> ---------------------------------------------------------------------------------
>
> Key: HBASE-14885
> URL: https://issues.apache.org/jira/browse/HBASE-14885
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 1.3.0
> Reporter: Ted Yu
> Assignee: Ted Yu
> Fix For: 2.0.0, 1.2.0, 1.3.0
>
> Attachments: 14885-branch-1.txt, 14885-v1.txt
>
>
> During system test on Windows, we observed the following in master log:
> {code}
> 2015-11-23 11:31:38,853 ERROR org.apache.hadoop.hbase.master.normalizer.RegionNormalizerChore: Caught error^M
> java.lang.NullPointerException^M
> at org.apache.hadoop.hbase.master.HMaster.normalizeRegions(HMaster.java:1396)^M
> at org.apache.hadoop.hbase.master.normalizer.RegionNormalizerChore.chore(RegionNormalizerChore.java:49)^M
> at org.apache.hadoop.hbase.ScheduledChore.run(ScheduledChore.java:185)^M
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)^M
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)^M
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)^M
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)^M
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)^M
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)^M
> at java.lang.Thread.run(Thread.java:745)^M
> {code}
> The NullPointerException came from the second line below:
> {code}
> for(TableName table : allEnabledTables) {
> if (table.isSystemTable() || !getTableDescriptors().get(table).isNormalizationEnabled()) {
> {code}
> It seems TableDescriptor for some table was absent.
> normalizeRegions() should deal with such scenario without producing NPE.
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