HBASE-20207 Update doc on the steps to revert rsgroups feature Signed-off-by: tedyu <yuzhih...@gmail.com>
Project: http://git-wip-us.apache.org/repos/asf/hbase/repo Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/a03a652e Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/a03a652e Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/a03a652e Branch: refs/heads/HBASE-19064 Commit: a03a652e2089c561e6af8f1d13003c3434078cd7 Parents: f3d1c02 Author: Biju Nair <gs.b...@gmail.com> Authored: Thu Mar 15 10:26:46 2018 -0400 Committer: tedyu <yuzhih...@gmail.com> Committed: Thu May 24 08:58:25 2018 -0700 ---------------------------------------------------------------------- src/main/asciidoc/_chapters/ops_mgt.adoc | 42 +++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hbase/blob/a03a652e/src/main/asciidoc/_chapters/ops_mgt.adoc ---------------------------------------------------------------------- diff --git a/src/main/asciidoc/_chapters/ops_mgt.adoc b/src/main/asciidoc/_chapters/ops_mgt.adoc index 06238e3..e15b73f 100644 --- a/src/main/asciidoc/_chapters/ops_mgt.adoc +++ b/src/main/asciidoc/_chapters/ops_mgt.adoc @@ -2777,6 +2777,48 @@ Viewing the Master log will give you insight on rsgroup operation. If it appears stuck, restart the Master process. +=== Remove RegionServer Grouping +Removing RegionServer Grouping feature from a cluster on which it was enabled involves +more steps in addition to removing the relevant properties from `hbase-site.xml`. This is +to clean the RegionServer grouping related meta data so that if the feature is re-enabled +in the future, the old meta data will not affect the functioning of the cluster. + +- Move all tables in non-default rsgroups to `default` regionserver group +[source,bash] +---- +#Reassigning table t1 from non default group - hbase shell +hbase(main):005:0> move_tables_rsgroup 'default',['t1'] +---- +- Move all regionservers in non-default rsgroups to `default` regionserver group +[source, bash] +---- +#Reassigning all the servers in the non-default rsgroup to default - hbase shell +hbase(main):008:0> move_servers_rsgroup 'default',['rs1.xxx.com:16206','rs2.xxx.com:16202','rs3.xxx.com:16204'] +---- +- Remove all non-default rsgroups. `default` rsgroup created implicitly doesn't have to be removed +[source,bash] +---- +#removing non default rsgroup - hbase shell +hbase(main):009:0> remove_rsgroup 'group2' +---- +- Remove the changes made in `hbase-site.xml` and restart the cluster +- Drop the table `hbase:rsgroup` from `hbase` +[source, bash] +---- +#Through hbase shell drop table hbase:rsgroup +hbase(main):001:0> disable 'hbase:rsgroup' +0 row(s) in 2.6270 seconds + +hbase(main):002:0> drop 'hbase:rsgroup' +0 row(s) in 1.2730 seconds +---- +- Remove znode `rsgroup` from the cluster ZooKeeper using zkCli.sh +[source, bash] +---- +#From ZK remove the node /hbase/rsgroup through zkCli.sh +rmr /hbase/rsgroup +---- + === ACL To enable ACL, add the following to your hbase-site.xml and restart your Master:
