wchevreuil commented on a change in pull request #45: HBASE-23371 [HBCK2]
Provide client side method for removing ghost regions in meta.
URL:
https://github.com/apache/hbase-operator-tools/pull/45#discussion_r355121906
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File path: hbase-hbck2/README.md
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@@ -174,13 +174,46 @@ Command:
for how to generate new report.
SEE ALSO: reportMissingRegionsInMeta
+ removeExtraRegionsFromMeta <NAMESPACE|NAMESPACE:TABLENAME>...
+ To be used when regions present on hbase:meta, but with no related
+ directories on the file system. Needs hbase:meta
+ to be online. For each table name passed as parameter, performs diff
+ between regions available in hbase:meta and region dirs on the given
+ file system, removing extra regions from meta with no matching directory.
Review comment:
Yeah (see Daisuke's comments next). This is similar to the previous
_addFsRegionsMissingInMeta_ command, where we assume the filesystem to be the
source of truth. Given the "ghost" region in meta is useless without a related
dir in the filesystem, here deletion would have no risk of dataloss.
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