You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@hbase.apache.org by "Sean Busbey (JIRA)" <ji...@apache.org> on 2017/04/14 15:47:41 UTC
[jira] [Updated] (HBASE-17460) enable_table_replication can not
perform cyclic replication of a table
[ https://issues.apache.org/jira/browse/HBASE-17460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Busbey updated HBASE-17460:
--------------------------------
Priority: Critical (was: Major)
> enable_table_replication can not perform cyclic replication of a table
> ----------------------------------------------------------------------
>
> Key: HBASE-17460
> URL: https://issues.apache.org/jira/browse/HBASE-17460
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Reporter: NITIN VERMA
> Assignee: NITIN VERMA
> Priority: Critical
> Labels: replication
> Fix For: 2.0.0, 1.4.0
>
> Attachments: 17460-addendum.txt, 17460-addendum.v2.txt, 17460.branch-1.v3.txt, 17460.v5.txt, HBASE-17460-addendum2.patch, HBASE-17460-addendum2-v2.patch, HBASE-17460-addendum2-v3.patch, HBASE-17460-addendum2-v4.patch, HBASE-17460-branch-1-v5-addendumv2-addendum2v4.patch, HBASE-17460-branch-1-v5-addendumv2-addendum2v4-v2.patch, HBASE-17460-branch-1-v5-plusaddendum-v2.patch, HBASE-17460.patch, HBASE-17460_v2.patch, HBASE-17460_v3.patch, HBASE-17460_v4.patch
>
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> The enable_table_replication operation is broken for cyclic replication of HBase table as we compare all the properties of column families (including REPLICATION_SCOPE).
> Below is exactly what happens:
> 1. Running "enable_table_replication 'table1' " opeartion on first cluster will set the REPLICATION_SCOPE of all column families to peer id '1'. This will also create a table on second cluster where REPLICATION_SCOPE is still set to peer id '0'.
> 2. Now when we run "enable_table_replication 'table1'" on second cluster, we compare all the properties of table (including REPLICATION_SCOPE_, which obviously is different now.
> I am proposing a fix for this issue where we should avoid comparing REPLICATION_SCOPE inside HColumnDescriotor::compareTo() method, especially when replication is not already enabled on the desired table.
> I have made that change and it is working. I will submit the patch soon.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)