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From Demai Ni <nid...@gmail.com>
Subject Re: [jira] [Resolved] (HBASE-8591) Doc Improvement: Replication blog
Date Wed, 22 May 2013 18:55:41 GMT
Himanshu, 

Thanks a lot. Your suggestion saved me a lot of time if have to figure it out myself

Demai on the run

On May 22, 2013, at 11:00 AM, Himanshu Vashishtha <hv.csuoa@gmail.com> wrote:

> Since the source metrics would not be available in case the master cluster
> is down,
> your best bet would be "sink.ageOfLastAppliedOp" at the slave cluster.
> Its value is the timestamp of the last WALEdit that is applied to the
> slave.
> 
> 
> On Wed, May 22, 2013 at 10:02 AM, N Dm <nidmgg@gmail.com> wrote:
> 
>> Stack and Himanshu,
>> 
>> many thanks for putting this together.  Particularly  the info from
>> Replication Metrics, whichs help a lot to understand the replication.
>> 
>> A quick question on source.ageOfLastShippedOp. In the case that master
>> cluster down, the user will like to know what the delta between master and
>> slave. In another word, to find out the portion of mutation that already
>> commit on Master, but haven't  replicated yet. Is source.ageOfLastShippedOp
>> the right place to look at? will it be available even with HBASE down?
>> 
>> Again thanks for the doc and appreciate it.
>> 
>> Demai
>> 
>> 
>> On Tue, May 21, 2013 at 10:39 PM, stack (JIRA) <jira@apache.org> wrote:
>> 
>>> 
>>>     [
>>> 
>> https://issues.apache.org/jira/browse/HBASE-8591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
>> ]
>>> 
>>> stack resolved HBASE-8591.
>>> --------------------------
>>> 
>>>       Resolution: Fixed
>>>    Fix Version/s: 0.98.0
>>>     Hadoop Flags: Reviewed
>>> 
>>> Committed to trunk.  Thanks Himanshu (And Chris for review)
>>> 
>>>> Doc Improvement: Replication blog
>>>> ---------------------------------
>>>> 
>>>>                Key: HBASE-8591
>>>>                URL: https://issues.apache.org/jira/browse/HBASE-8591
>>>>            Project: HBase
>>>>         Issue Type: Task
>>>>         Components: documentation, Replication
>>>>   Affects Versions: 0.95.0
>>>>           Reporter: Himanshu Vashishtha
>>>>           Assignee: Himanshu Vashishtha
>>>>            Fix For: 0.98.0
>>>> 
>>>>        Attachments: HBase-8591.patch, HBase-8591-v1.patch
>>>> 
>>>> 
>>>> Add a section for source level metrics and some truth about table batch
>>> ops at sink.
>>> 
>>> --
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>>> For more information on JIRA, see:
>> http://www.atlassian.com/software/jira
>>> 
>> 

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