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https://issues.apache.org/jira/browse/HBASE-24102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anoop Sam John updated HBASE-24102:
-----------------------------------
Description:
When using RegionMover tool to unload the regions from a given RS, it decides
the list of destination RSs by
{code}
List<ServerName> regionServers = new ArrayList<>();
regionServers.addAll(admin.getRegionServers());
// Remove the host Region server from target Region Servers list
ServerName server = stripServer(regionServers, hostname, port);
.....
// Remove RS present in the exclude file
stripExcludes(regionServers);
stripMaster(regionServers);
{code}
Ya it is removing the RSs mentioned in the exclude file.
Better when the RegionMover user is NOT mentioning any exclude list, we can
exclude the draining/decommissioning RSs
Admin#listDecommissionedRegionServers()
was:
When using RegionMover tool to unload the regions from a given RS, it decides
the list of destination RSs by
{code}
List<ServerName> regionServers = new ArrayList<>();
regionServers.addAll(admin.getRegionServers());
// Remove the host Region server from target Region Servers list
ServerName server = stripServer(regionServers, hostname, port);
.....
// Remove RS present in the exclude file
stripExcludes(regionServers);
stripMaster(regionServers);
{code}
Ya it is removing the RSs mentioned in the exclude file.
Better when the RegionMover user is mentioning any exclude list, we can exlcude
the draining/decommissioning RSs
Admin#listDecommissionedRegionServers()
> RegionMover should exclude draining/decommissioning nodes from target RSs
> -------------------------------------------------------------------------
>
> Key: HBASE-24102
> URL: https://issues.apache.org/jira/browse/HBASE-24102
> Project: HBase
> Issue Type: Improvement
> Reporter: Anoop Sam John
> Priority: Major
> Fix For: 3.0.0, 2.4.0
>
>
> When using RegionMover tool to unload the regions from a given RS, it decides
> the list of destination RSs by
> {code}
> List<ServerName> regionServers = new ArrayList<>();
> regionServers.addAll(admin.getRegionServers());
> // Remove the host Region server from target Region Servers list
> ServerName server = stripServer(regionServers, hostname, port);
> .....
> // Remove RS present in the exclude file
> stripExcludes(regionServers);
> stripMaster(regionServers);
> {code}
> Ya it is removing the RSs mentioned in the exclude file.
> Better when the RegionMover user is NOT mentioning any exclude list, we can
> exclude the draining/decommissioning RSs
> Admin#listDecommissionedRegionServers()
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