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Posted to issues@hbase.apache.org by "ryan rawson (JIRA)" <ji...@apache.org> on 2010/11/12 02:25:15 UTC
[jira] Resolved: (HBASE-3224) NPE in KeyValue$KVComparator.compare
when compacting
[ https://issues.apache.org/jira/browse/HBASE-3224?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ryan rawson resolved HBASE-3224.
--------------------------------
Resolution: Fixed
Hadoop Flags: [Reviewed]
committed, thanks for the reviews
> NPE in KeyValue$KVComparator.compare when compacting
> ----------------------------------------------------
>
> Key: HBASE-3224
> URL: https://issues.apache.org/jira/browse/HBASE-3224
> Project: HBase
> Issue Type: Bug
> Reporter: Jean-Daniel Cryans
> Assignee: ryan rawson
> Priority: Critical
> Fix For: 0.90.0
>
> Attachments: HBASE-3224.txt
>
>
> While testing normal insertion via PE, I got this recurrent NPE coming out of KeyValue$KVComparator.compare while it's compacting. So far I saw 2 different stack traces:
> {noformat}
> java.lang.NullPointerException
> at org.apache.hadoop.hbase.KeyValue$KVComparator.compare(KeyValue.java:1356)
> at org.apache.hadoop.hbase.regionserver.KeyValueHeap.reseek(KeyValueHeap.java:250)
> at org.apache.hadoop.hbase.regionserver.StoreScanner.reseek(StoreScanner.java:385)
> at org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:291)
> at org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:324)
> at org.apache.hadoop.hbase.regionserver.Store.compact(Store.java:926)
> at org.apache.hadoop.hbase.regionserver.Store.compact(Store.java:734)
> {noformat}
> {noformat}
> java.lang.NullPointerException
> at org.apache.hadoop.hbase.KeyValue$KVComparator.compare(KeyValue.java:1375)
> at org.apache.hadoop.hbase.regionserver.KeyValueHeap$KVScannerComparator.compare(KeyValueHeap.java:180)
> at org.apache.hadoop.hbase.regionserver.KeyValueHeap$KVScannerComparator.compare(KeyValueHeap.java:156)
> at org.apache.hadoop.hbase.regionserver.KeyValueHeap$KVScannerComparator.compare(KeyValueHeap.java:146)
> at java.util.PriorityQueue.siftUpUsingComparator(PriorityQueue.java:594)
> at java.util.PriorityQueue.siftUp(PriorityQueue.java:572)
> at java.util.PriorityQueue.offer(PriorityQueue.java:274)
> at java.util.PriorityQueue.add(PriorityQueue.java:251)
> at org.apache.hadoop.hbase.regionserver.KeyValueHeap.reseek(KeyValueHeap.java:258)
> at org.apache.hadoop.hbase.regionserver.StoreScanner.reseek(StoreScanner.java:385)
> at org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:291)
> at org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:324)
> at org.apache.hadoop.hbase.regionserver.Store.compact(Store.java:926)
> at org.apache.hadoop.hbase.regionserver.Store.compact(Store.java:734)
> {noformat}
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