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https://issues.apache.org/jira/browse/HBASE-8497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13649979#comment-13649979
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Himanshu Vashishtha commented on HBASE-8497:
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+1. 
Enis, thanks for filing this.

As we discussed in the meeting last Friday, 6774 is a potential use case of 
this approach, where part of the RegionServer Load (sequenceId, list of region 
names, their associated dirty bit (as mentioned in 6774 approach), etc) can be 
added to the end of a WAL.

I would definitely like to work on this and 6774.
                
> Protobuf WAL also needs a trailer 
> ----------------------------------
>
>                 Key: HBASE-8497
>                 URL: https://issues.apache.org/jira/browse/HBASE-8497
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Protobufs, wal
>    Affects Versions: 0.95.1
>            Reporter: Enis Soztutar
>             Fix For: 0.98.0, 0.95.1
>
>
> New Protobuf WAL has a header, but we will probably need a trailer as well, 
> reserved for later usage. 
> Right now, we can we just serialize an empty trailer, but putting more 
> metadata there, like range of sequence_id's, region names, table names etc 
> might be needed in the future. 

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