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From Dan Crosta <...@magnetic.com>
Subject Re: Scanner timeout -- any reason not to raise?
Date Sun, 17 Mar 2013 20:56:08 GMT
Ah, thanks Ted -- I was wondering what that setting was for.

We are using CDH 4.2.0, which is HBase 0.94.2 (give or take a few backports from 0.94.3).

Is there any harm in setting the lease timeout to something larger, like 5 or 10 minutes?

Thanks,
- Dan

On Mar 17, 2013, at 1:46 PM, Ted Yu wrote:

> Which HBase version are you using ?
> 
> In 0.94 and prior, the config param is hbase.regionserver.lease.period
> 
> In 0.95, it is different. See release notes of HBASE-6170
> 
> On Sun, Mar 17, 2013 at 11:46 AM, Dan Crosta <dan@magnetic.com> wrote:
> 
>> We occasionally get scanner timeout errors such as "66698ms passed since
>> the last invocation, timeout is currently set to 60000" when iterating a
>> scanner through the Thrift API. Is there any reason not to raise the
>> timeout to something larger than the default 60s? Put another way, what
>> resources (and how much of them) does a scanner take up on a thrift server
>> or region server?
>> 
>> Also, to confirm -- I believe "hbase.rpc.timeout" is the setting in
>> question here, but someone please correct me if I'm wrong.
>> 
>> Thanks,
>> - Dan
>> 
>> 
>> 


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