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Date: Tue, 28 Jul 2015 10:50:04 +0000 (UTC)
From: "ramkrishna.s.vasudevan (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Comment Edited] (HBASE-14155) StackOverflowError in reverse
 scan
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    [ https://issues.apache.org/jira/browse/HBASE-14155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644190#comment-14644190 ] 

ramkrishna.s.vasudevan edited comment on HBASE-14155 at 7/28/15 10:49 AM:
--------------------------------------------------------------------------

[~giacomotaylor]
The reason why you could NOT directly reproduce this with your test code was because you did not set the DataBlockEncoding on the CF.


was (Author: ram_krish):
[~giacomotaylor]
The reason why you could directly reproduce this with your test code was because you did not set the DataBlockEncoding on the CF.

> StackOverflowError in reverse scan
> ----------------------------------
>
>                 Key: HBASE-14155
>                 URL: https://issues.apache.org/jira/browse/HBASE-14155
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver, Scanners
>    Affects Versions: 1.1.0
>            Reporter: James Taylor
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Critical
>              Labels: Phoenix
>         Attachments: HBASE-14155.patch, ReproReverseScanStackOverflow.java, ReproReverseScanStackOverflowCoprocessor.java
>
>
> A stack overflow may occur when a reverse scan is done. To reproduce (on a Mac), use the following steps:
> - Download the Phoenix 4.5.0 RC here: https://dist.apache.org/repos/dist/dev/phoenix/phoenix-4.5.0-HBase-1.1-rc0/bin/
> - Copy the phoenix-4.5.0-HBase-1.1-server.jar into the HBase lib directory (removing any earlier Phoenix version if there was one installed)
> - Stop and restart HBase
> - From the bin directory of the Phoenix binary distribution, start sqlline like this: ./sqlline.py localhost
> - Create a new table and populate it like this:
> {code}
> create table desctest (k varchar primary key desc);
> upsert into desctest values ('a');
> upsert into desctest values ('ab');
> upsert into desctest values ('b');
> {code}
> - Note that the following query works fine at this point:
> {code}
> select * from desctest order by k;
> +------------------------------------------+
> |                    K                     |
> +------------------------------------------+
> | a                                        |
> | ab                                       |
> | b                                        |
> +------------------------------------------+
> {code}
> - Stop and start HBase
> - Rerun the above query again and you'll get  a StackOverflowError at StoreFileScanner.seekToPreviousRow()
> {code}
> select * from desctest order by k;
> java.lang.RuntimeException: org.apache.phoenix.exception.PhoenixIOException: org.apache.phoenix.exception.PhoenixIOException: org.apache.hadoop.hbase.DoNotRetryIOException: DESCTEST,,1437847235264.a74d70e6a8b36e24d1ea1a70edb0cdf7.: null
> 	at org.apache.phoenix.util.ServerUtil.createIOException(ServerUtil.java:84)
> 	at org.apache.phoenix.util.ServerUtil.throwIOException(ServerUtil.java:52)
> 	at org.apache.phoenix.coprocessor.BaseScannerRegionObserver$2.nextRaw(BaseScannerRegionObserver.java:352)
> 	at org.apache.phoenix.coprocessor.DelegateRegionScanner.nextRaw(DelegateRegionScanner.java:77)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2393)
> 	at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32205)
> 	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2112)
> 	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:101)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:130)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:107)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.StackOverflowError
> 	at org.apache.hadoop.hbase.io.hfile.ChecksumUtil.numChunks(ChecksumUtil.java:201)
> 	at org.apache.hadoop.hbase.io.hfile.ChecksumUtil.numBytes(ChecksumUtil.java:189)
> 	at org.apache.hadoop.hbase.io.hfile.HFileBlock.totalChecksumBytes(HFileBlock.java:1826)
> 	at org.apache.hadoop.hbase.io.hfile.HFileBlock.getBufferReadOnly(HFileBlock.java:356)
> 	at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$EncodedScannerV2.getEncodedBuffer(HFileReaderV2.java:1211)
> 	at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$EncodedScannerV2.getFirstKeyInBlock(HFileReaderV2.java:1307)
> 	at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekBefore(HFileReaderV2.java:657)
> 	at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekBefore(HFileReaderV2.java:646)
> 	at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekToPreviousRow(StoreFileScanner.java:425)
> 	at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekToPreviousRow(StoreFileScanner.java:449)
> 	at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekToPreviousRow(StoreFileScanner.java:449)
> 	at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekToPreviousRow(StoreFileScanner.java:449)
> {code}
> I've attempted to reproduce this in a standalone HBase unit test, but have not been able to (but I'll attach my attempt which mimics what Phoenix is doing).


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