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From "Appy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13783) Improve error message "Could not seek StoreFileScanner" to indicate that issue could be a bad disk
Date Fri, 13 May 2016 22:53:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15283269#comment-15283269
] 

Appy commented on HBASE-13783:
------------------------------

Following is the stack trace that was seen in this case. The root cause was 'invalid block
magic header' and it has been fixed in https://issues.apache.org/jira/browse/HBASE-11625.
Closing this one out.

{noformat}
java.io.IOException: Could not seek StoreFileScanner[HFileScanner for reader reader=...........]
at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seek(StoreFileScanner.java:155) 
at org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:171) 
at org.apache.hadoop.hbase.regionserver.Compactor.compact(Compactor.java:172) 
at org.apache.hadoop.hbase.regionserver.Store.compact(Store.java:1156) 
at org.apache.hadoop.hbase.regionserver.HRegion.compact(HRegion.java:1370) 
at org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest.run(CompactionRequest.java:303)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) 
at java.lang.Thread.run(Thread.java:662) 
Caused by: java.io.IOException: Invalid HFile block magic: \x5Ck\x9E\xD823\xC5h 
at org.apache.hadoop.hbase.io.hfile.BlockType.parse(BlockType.java:153) 
at org.apache.hadoop.hbase.io.hfile.BlockType.read(BlockType.java:164) 
at org.apache.hadoop.hbase.io.hfile.HFileBlock.<init>(HFileBlock.java:256) 
at org.apache.hadoop.hbase.io.hfile.HFileBlock$FSReaderV2.readBlockDataInternal(HFileBlock.java:1925)

at org.apache.hadoop.hbase.io.hfile.HFileBlock$FSReaderV2.readBlockData(HFileBlock.java:1703)

at org.apache.hadoop.hbase.io.hfile.HFileReaderV2.readBlock(HFileReaderV2.java:343) 
at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$ScannerV2.seekTo(HFileReaderV2.java:755)

at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekAtOrAfter(StoreFileScanner.java:226)

at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seek(StoreFileScanner.java:143) 
{noformat}

> Improve error message "Could not seek StoreFileScanner" to indicate that issue could
be a bad disk
> --------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-13783
>                 URL: https://issues.apache.org/jira/browse/HBASE-13783
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Appy
>            Priority: Minor
>         Attachments: HBASE-13783.patch
>
>
> Feedback from customers.
> Following error could mean that a disk has gone bad. We have seen many users confused
by this error. 
> java.io.IOException: Could not seek StoreFileScanner[HFileScanner for reader reader=hdfs://XXXX/843914879034b56117dfa6b7f3c8383d/content/b6f5e9961d2d4578aea3917c0637bb7c



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