Toshihiro Suzuki created HBASE-20049:
----------------------------------------
Summary: Region replicas of SPLIT and MERGED regions are kept in
in-memory states until restarting master
Key: HBASE-20049
URL: https://issues.apache.org/jira/browse/HBASE-20049
Project: HBase
Issue Type: Bug
Components: read replicas
Reporter: Toshihiro Suzuki
Assignee: Toshihiro Suzuki
Currently, when regions are split or merged, region replicas of the regions
will become CLOSED state but will not be deleted from in-memory states (e.g.
AssignmentManager). These region replicas are deleted when restarting master,
but I think they should be deleted during splitting and merging regions.
One problem with this is the outdated region replicas can be online. Steps to
reproduce are as follows:
1. Create a table with enabling region replication.
{code}
create "test", "cf", {REGION_REPLICATION => 2}
{code}
2. Split the table
{code}
split "test"
{code}
3. Disable and enable the table
{code}
disable "test"
enable "test"
{code}
After doing those steps, the outdated region replica will be online.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
