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From Jia Wang <ra...@appannie.com>
Subject Re: Frequent scan time outs in multiple region servers in same time intervals
Date Thu, 14 Nov 2013 10:54:28 GMT
Is it a Scan for Map/Reduce? Or it's only a regular scan in which case
maybe you could consider to set the start and end position of your scan to
limit the operation.

Thanks
Ramon


On Thu, Nov 14, 2013 at 6:23 PM, Sandeep L <sandeepvreddy@outlook.com>wrote:

> Hi,
> In recent times we are seeing frequent scan time outs in multiple region
> servers of our production cluster. Due to this our HBase cluster is not
> responding for 5 to 10 minutes for any queries & that causing huge problem
> for us.
> We are getting following error in multiple region servers almost in same
> time intervals
> 2013-11-14 00:16:30,178 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer: Scanner
> -8978491571406751432 lease expired on region
> TableName,news,1383881528749.1e3f228e7a7a5a13d117af309f252c6c
> This error is occurring on multiple tables.
> Can suggest us what could be the cause and how to resolve the issue.
>
> Thanks,Sandeep.

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