[jira] [Commented] (HBASE-21337) Master-Master Replication

["Reid Chan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-21337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16655033#comment-16655033 ] 

Reid Chan commented on HBASE-21337:
-----------------------------------

To ask questions, please send email to user at hbase.apache.org, and cc to dev at hbase.apache.org 
Many experienced users or experts can get notified there, and so a greater chance your question can be answered. Jira is mainly for bugs fixed and improvement proposal, not a real good place to ask questions.

> Master-Master Replication
> -------------------------
>
>                 Key: HBASE-21337
>                 URL: https://issues.apache.org/jira/browse/HBASE-21337
>             Project: HBase
>          Issue Type: Bug
>          Components: Replication
>    Affects Versions: 2.0.0
>         Environment: Cluster A-HDP 3.0.0(hadoop3.0, hbase2.0); cluster B-native hadoop2.7, hbase1.2.6. 
>            Reporter: Liudong
>            Priority: Major
>
> Cluster A-HDP 3.0.0(hadoop3.0, hbase2.0); cluster B-native hadoop2.7, hbase1.2.6. 
> I want to replicate a table named T(only one CF named 'f') on cluster A and B with each other, that is, the table T data of A changes will be synchronized to B, and the table T data of B changes will be synchronized to A. I configured repplication both on Cluster A and B for table T using 'add_peer' and 'enable_table_replication' by Hbase shell(firstly A to B,2ndly B to A).Then，I did test in Hbase shell as below,
> 1.Put a record by typing "put 'T','r1','f:a','1'" on A,then Scan table T,it's no problem,the record can be found on both A and B;
> 2.Put a record by typing "put 'T','r2','f:a','1'" on B,no problem,both found on A and B;
> 3.Put a record by typing "put 'T','r1','f:a','2'" to update the value to '2' on A,no problem, updated successfully on both A and B;
> 4.Put a record by typing "put 'T','r1','f:a','3'" to update the value to '3' on B,no problem, updated successfully on both A and B;
> 5.Put a record by typing "put 'T','r1','f:a','4'" to update the value to '4' on A,the problem was coming, there is no update both A and B, that means this 'Put'is not effected,the value is still '3' on A and B although the Hbase shell does not give an error when I 'put'.
> 6.after about 1 minute, I typing the 'Put' again to update the value to '4' on A, now, it's successful, the value is updated to '4' both on A and B.
> May I ask what's the reason? Anything I missed to configure?Thx.



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