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https://issues.apache.org/jira/browse/HBASE-14497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14936310#comment-14936310
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Hudson commented on HBASE-14497:
--------------------------------
FAILURE: Integrated in HBase-TRUNK #6855 (See
[https://builds.apache.org/job/HBase-TRUNK/6855/])
HBASE-14497 Reverse Scan threw StackOverflow caused by readPt checking (Yerui
Sun) (tedyu: rev 653458365281d96c288804d094c7d5f8d826a7d7)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
> Reverse Scan threw StackOverflow caused by readPt checking
> ----------------------------------------------------------
>
> Key: HBASE-14497
> URL: https://issues.apache.org/jira/browse/HBASE-14497
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0, 0.98.14, 1.3.0
> Reporter: Yerui Sun
> Assignee: Yerui Sun
> Fix For: 2.0.0
>
> Attachments: 14497-master-v6.patch, HBASE-14497-0.98.patch,
> HBASE-14497-branch-1-v2.patch, HBASE-14497-branch-1-v3.patch,
> HBASE-14497-branch-1.patch, HBASE-14497-master-v2.patch,
> HBASE-14497-master-v3.patch, HBASE-14497-master-v3.patch,
> HBASE-14497-master-v4.patch, HBASE-14497-master-v5.patch,
> HBASE-14497-master.patch
>
>
> I met stack overflow error in StoreFileScanner.seekToPreviousRow using
> reversed scan. I searched and founded HBASE-14155, but it seems to be a
> different reason.
> The seekToPreviousRow will fetch the row which closest before, and compare
> mvcc to the readPt, which acquired when scanner created. If the row's mvcc is
> bigger than readPt, an recursive call of seekToPreviousRow will invoked, to
> find the next closest before row.
> Considering we created a scanner for reversed scan, and some data with
> smaller rows was written and flushed, before calling scanner next. When
> seekToPreviousRow was invoked, it would call itself recursively, until all
> rows which written after scanner created were iterated. The depth of
> recursive calling stack depends on the count of rows, the stack overflow
> error will be threw if the count of rows is large, like 10000.
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