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https://issues.apache.org/jira/browse/HBASE-13469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matteo Bertozzi updated HBASE-13469:
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Resolution: Fixed
Release Note:
In 1.1 release, we implemented Procedure V2 to execute table DDL operations
(create/delete/modify/truncate/enable/disable table; add/delete/modify column)
to replace 1.0 release's handler implementation. By default, Procedure V2
feature is enabled in 1.1 release. We provide a config for customer to go back
to 1.0 release implementation.
The "hbase.master.procedure.tableddl" configuration accepts 2 values to change
the behavior (other values treats as default - Procedure "enabled"):
(1). "unused"
(1a). uses handler implementation to execute new table DDLs;
(1b).in case of unclean shutdown (crash), we could have unfinished DDLs in
Procedure store, Procedure code will replay those operations and completes them.
(2). "disabled" - (in case customer run into some problem and want to
completely disable the Procedure V2 feature),
(2a). this value would use handler implementation to execute new table DDLs;
(2b). in case of unclean shutdown (crash), we could have unfinished DDLs in
Procedure store, to prevent possible problem, the files in procedure store
(WAL) will be deleted so that we would get into a clean state when the
Procedure is enabled.
Note:
(A). This configuration is only checked during master start up (in constructor)
- so you have to re-start master after changing the value
(B). In case of crash and unclean shut down, HBCK is needed to clean up
corruptions. "disable" case has more chance to lead to half-completed operation
and hence customer should not be surprised when running HBCK is needed.
Status: Resolved (was: Patch Available)
> [branch-1.1] Procedure V2 - Make procedure v2 configurable in branch-1.1
> ------------------------------------------------------------------------
>
> Key: HBASE-13469
> URL: https://issues.apache.org/jira/browse/HBASE-13469
> Project: HBase
> Issue Type: Sub-task
> Components: master
> Affects Versions: 1.1.0
> Reporter: Enis Soztutar
> Assignee: Stephen Yuan Jiang
> Fix For: 1.1.0
>
> Attachments: HBASE-13469.v2-branch-1.1.patch
>
>
> In branch-1, I think we want proc v2 to be configurable, so that if any
> non-recoverable issue is found, at least there is a workaround. We already
> have the handlers and code laying around. It will be just introducing the
> config to enable / disable. We can even make it dynamically configurable via
> the new framework.
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