[ https://issues.apache.org/jira/browse/HBASE-20632?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Yu updated HBASE-20632: --------------------------- Priority: Critical (was: Major) > Failure of RSes belonging to RSgroup for System tables makes the cluster > unavailable > ------------------------------------------------------------------------------------ > > Key: HBASE-20632 > URL: https://issues.apache.org/jira/browse/HBASE-20632 > Project: HBase > Issue Type: Bug > Components: master, regionserver > Affects Versions: 3.0.0 > Reporter: Biju Nair > Priority: Critical > > This was done on a local cluster (non hdfs) and following are the steps > * Start a single node cluster and start an additional RS using > {{local-regionservers.sh}} > * Through hbase shell add a new rs group > * > {noformat} > hbase(main):001:0> add_rsgroup 'test_rsgroup' > Took 0.5503 seconds > hbase(main):002:0> list_rsgroups > NAME SERVER / TABLE > test_rsgroup > default server dob2-r3n13:16020 > server dob2-r3n13:16022 > table hbase:meta > table hbase:acl > table hbase:quota > table hbase:namespace > table hbase:rsgroup > 2 row(s) > Took 0.0419 seconds{noformat} > * Move one of the region servers to the new {{rsgroup}} > * > {noformat} > hbase(main):004:0> move_servers_rsgroup 'test_rsgroup',['dob2-r3n13:16020'] > Took 6.4894 seconds > hbase(main):005:0> exit{noformat} > * Stop the regionserver which is left in the {{default}} rsgroup > * > {noformat} > local-regionservers.sh stop 2{noformat} > The cluster becomes unusable even if the region server is restarted or even > if all the services were brought down and brought up. > In {{1.1.x}} version, the cluster recovers fine. Looks like {{meta}} is > assigned to a {{dummy}} regionserver and when the regionserver gets restarted > it gets assigned. The following is what we can see in {{master}} UI when the > {{rs}} is down > {noformat} > 1588230740 hbase:meta,,1.1588230740 state=PENDING_OPEN, ts=Wed May 23 > 18:24:01 EDT 2018 (1s ago), server=localhost,1,1{noformat} -- This message was sent by Atlassian JIRA (v7.6.3#76005)