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https://issues.apache.org/jira/browse/HBASE-20350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

stack updated HBASE-20350:
--------------------------
    Priority: Blocker  (was: Major)

> RegionServer is aborted due to NPE when scanner lease expired on a region
> -------------------------------------------------------------------------
>
>                 Key: HBASE-20350
>                 URL: https://issues.apache.org/jira/browse/HBASE-20350
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0-beta-2
>            Reporter: Umesh Agashe
>            Priority: Blocker
>             Fix For: 2.0.0
>
>
> From logs:
> {code}
> 2018-04-03 02:06:00,630 INFO org.apache.hadoop.hbase.regionserver.HRegion: 
> Replaying edits from 
> hdfs://ns1/hbase/data/default/IntegrationTestBigLinkedList_20180403004104/834545a2ae1baa47082a3bc7aab2be2f/recovered.edits/0000000000001032167
> 2018-04-03 02:06:00,724 INFO 
> org.apache.hadoop.hbase.regionserver.RSRpcServices: Scanner 
> 2120114333978460945 lease expired on region 
> IntegrationTestBigLinkedList_20180403004104,\xF1\xFE\xCB\x98e1\xF8\xD4,1522742825561.ce0d91585a2d188123173c36d0b693a5.
> 2018-04-03 02:06:00,730 ERROR 
> org.apache.hadoop.hbase.regionserver.HRegionServer: ***** ABORTING region 
> server vd0510.halxg.cloudera.com,22101,1522626204176: Uncaught exception in 
> executorService thread 
> regionserver/vd0510.halxg.cloudera.com/10.17.226.13:22101.leaseChecker *****
> java.lang.NullPointerException
>   at 
> org.apache.hadoop.hbase.CellComparatorImpl.compareRows(CellComparatorImpl.java:202)
>   at 
> org.apache.hadoop.hbase.CellComparatorImpl.compare(CellComparatorImpl.java:74)
>   at 
> org.apache.hadoop.hbase.CellComparatorImpl.compare(CellComparatorImpl.java:61)
>   at 
> org.apache.hadoop.hbase.regionserver.KeyValueHeap$KVScannerComparator.compare(KeyValueHeap.java:207)
>   at 
> org.apache.hadoop.hbase.regionserver.KeyValueHeap$KVScannerComparator.compare(KeyValueHeap.java:190)
>   at 
> org.apache.hadoop.hbase.regionserver.KeyValueHeap$KVScannerComparator.compare(KeyValueHeap.java:178)
>   at java.util.PriorityQueue.siftDownUsingComparator(PriorityQueue.java:721)
>   at java.util.PriorityQueue.siftDown(PriorityQueue.java:687)
>   at java.util.PriorityQueue.poll(PriorityQueue.java:595)
>   at 
> org.apache.hadoop.hbase.regionserver.KeyValueHeap.close(KeyValueHeap.java:228)
>   at 
> org.apache.hadoop.hbase.regionserver.StoreScanner.close(StoreScanner.java:483)
>   at 
> org.apache.hadoop.hbase.regionserver.StoreScanner.close(StoreScanner.java:464)
>   at 
> org.apache.hadoop.hbase.regionserver.KeyValueHeap.close(KeyValueHeap.java:224)
>   at 
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.close(HRegion.java:6666)
>   at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices$ScannerListener.leaseExpired(RSRpcServices.java:460)
>   at org.apache.hadoop.hbase.regionserver.Leases.run(Leases.java:122)
>   at java.lang.Thread.run(Thread.java:748)
> 2018-04-03 02:06:00,731 ERROR 
> org.apache.hadoop.hbase.regionserver.HRegionServer: RegionServer abort: 
> loaded coprocessors are: 
> [org.apache.hadoop.hbase.security.access.AccessController, 
> org.apache.hadoop.hbase.security.token.TokenProvider, 
> org.apache.hadoop.hbase.security.access.SecureBulkLoadEndpoint, 
> com.cloudera.navigator.audit.hbase.RegionAuditCoProcessor]
> 2018-04-03 02:06:00,737 INFO 
> org.apache.hadoop.hbase.regionserver.HRegionServer: Dump of metrics as JSON 
> on abort: {
> {code}



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