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From Bryan Beaudreault <bbeaudrea...@hubspot.com>
Subject Re: Error: java.io.IOException: Could not seek StoreFileScanner[HFileScanner for reade
Date Fri, 28 Dec 2012 19:07:33 GMT
We've seen this at times too and would be interested to know what causes
it.  Until you get a better answer, one thing we found helps is to move the
region via the hbase shell.  For us clients would be able to scan the
region once it has moved.


On Fri, Dec 28, 2012 at 2:00 AM, satish verma <satish.bigdata@gmail.com>wrote:

> Hi
>
>  I am using a MR job on Hbase . I am getting this sort of error on a few
> region servers. Can someone explain what this means and what should I do ?
>
>  Thanks.
>
> 12/12/26 03:03:18 INFO mapred.JobClient: Task Id :
> attempt_201210121702_699686_m_
> 000046_0, Status : FAILED
> org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to contact
> region server b-app-80.ssprod:65520 for region
> webpage_production,9c3583e2e97d7845288f6792ed641e60,1343757929164, row
> '9c3583e2e97d7845288f6792ed641e60', but failed after 10 attempts.
> Exceptions:
> java.io.IOException: java.io.IOException: Could not seek
> StoreFileScanner[HFileScanner for reader
>
> reader=hdfs://b-hadoop-master.ssprod:54310/hbase/webpage_production/1629342332/tm/7630213467863536608,
> compression=gz, inMemory=false,
> firstKey=9c3583e2e97d7845288f6792ed641e60/tm:eid/1337397152960/Put,
> lastKey=a05d22c20c779e39dffc28fe86053408/tm:url/1352931877105/Put,
> avgKeyLen=49, avgValueLen=38, entries=4091448, length=75747961, cur=null]
>     at
>
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.seek(StoreFileScanner.java:104)
>     at
>
> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:77)
>     at
> org.apache.hadoop.hbase.regionserver.Store.getScanner(Store.java:1408)
>     at org.apache.hadoop.hbase.regionserver.HRegion$RegionScanner
>

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