[
https://issues.apache.org/jira/browse/HBASE-1256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stack updated HBASE-1256:
-------------------------
Fix Version/s: 0.19.1
Pulling into 0.19.1
I think I see the issue. It looks like it was introduced by 1219/1220. Here
is the fix I think:
{code}
Index: src/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
===================================================================
--- src/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
(revision 752526)
+++ src/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
(working copy)
@@ -93,7 +93,7 @@
} else {
// Only add in non-null Readers
int nonulls = 0;
- for (int i = 1; i < this.readers.length; i++) {
+ for (int i = 0; i < this.readers.length; i++) {
if (this.readers[i] != null) nonulls++;
}
MapFile.Reader [] newReaders = new MapFile.Reader[nonulls + 1];
{code}
Let me run some tests.
> NPE in StoreFileScanner durring cache flush
> -------------------------------------------
>
> Key: HBASE-1256
> URL: https://issues.apache.org/jira/browse/HBASE-1256
> Project: Hadoop HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.19.0
> Environment: latest branch of 0.19 with some unrelated transactional
> fixes.
> Master, regionserver, and client all in the same JVM
> Reporter: Clint Morgan
> Fix For: 0.19.1
>
>
> About an hour into a bulk upload I'm consistently getting:
> org.apache.hadoop.hbase.DroppedSnapshotException: region:
> net_troove_coin_transaction_Transaction,,1236293201543
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:902)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:795)
> at
> org.apache.hadoop.hbase.regionserver.MemcacheFlusher.flushRegion(MemcacheFlusher.java:228)
> at
> org.apache.hadoop.hbase.regionserver.MemcacheFlusher.run(MemcacheFlusher.java:138)
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.findFirstRow(StoreFileScanner.java:314)
> at
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.advance(StoreFileScanner.java:141)
> at
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.openReaders(StoreFileScanner.java:109)
> at
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.updateReaders(StoreFileScanner.java:413)
> at
> org.apache.hadoop.hbase.regionserver.HStoreScanner.updateReaders(HStoreScanner.java:346)
> at
> org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:746)
> at
> org.apache.hadoop.hbase.regionserver.HStore.updateReaders(HStore.java:731)
> at
> org.apache.hadoop.hbase.regionserver.HStore.internalFlushCache(HStore.java:700)
> at
> org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:636)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:887)
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
