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https://issues.apache.org/jira/browse/HBASE-12931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14357083#comment-14357083
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Hudson commented on HBASE-12931:
--------------------------------
FAILURE: Integrated in HBase-1.0 #797 (See
[https://builds.apache.org/job/HBase-1.0/797/])
HBASE-12931 The existing KeyValues in memstore are not removed completely after
inserting cell into memStore (ChiaPing Tsai) (tedyu: rev
0bbb606eae19b45d6905b2f453a76e7a45b3bdc2)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultMemStore.java
> The existing KeyValues in memstore are not removed completely after inserting
> cell into memStore
> -------------------------------------------------------------------------------------------------
>
> Key: HBASE-12931
> URL: https://issues.apache.org/jira/browse/HBASE-12931
> Project: HBase
> Issue Type: Bug
> Reporter: ChiaPing Tsai
> Assignee: ChiaPing Tsai
> Priority: Minor
> Fix For: 2.0.0, 1.0.1, 1.1.0, 0.98.12
>
> Attachments: 12931-0.98.txt, HBASE-12931.patch
>
>
> If I'm not wrong, the UPSERT method of memStore should remove all existing
> KeyValues except the newer version.
> In memStore,
> {code:title=DefaultMemStore.java|borderStyle=solid}
> int versIionsVisible = 0;
> ...
> if (cur.getTypeByte() == KeyValue.Type.Put.getCode() &&
> cur.getSequenceId() <= readpoint) {
> if (versionsVisible > 1) {
> // if we get here we have seen at least one version visible to
> the oldest scanner,
> // which means we can prove that no scanner will see this version
> // false means there was a change, so give us the size.
> long delta = heapSizeChange(cur, true);
> addedSize -= delta;
> this.size.addAndGet(-delta);
> it.remove();
> setOldestEditTimeToNow();
> } else {
> versionsVisible++;
> }
> {code}
> Does "versionsVisible > 1" should be changed to "versionsVisible >= 1" ?
> thanks.
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