[
https://issues.apache.org/jira/browse/HBASE-18792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16443270#comment-16443270
]
stack commented on HBASE-18792:
-------------------------------
Patch looks good. I tried to run a -fix and got the below:
{code}
ERROR: option '-fix' is not supportted!
-----------------------------------------------------------------------
NOTE: As of HBase version 2.0, the hbck tool is significantly changed.
In general, all Read-Only options are supported and can be be used
safely. Most -fix/ -repair options are NOT supported. Please see usage
below for details on which options are not supported.
-----------------------------------------------------------------------
Usage: fsck [opts] {only tables}
where [opts] are:
-help Display help options (this)
-details Display full report of all regions.
-timelag <timeInSeconds> Process only regions that have not experienced
any metadata updates in the last <timeInSeconds> seconds.
-sleepBeforeRerun <timeInSeconds> Sleep this many seconds before checking if
the fix worked if run with -fix
-summary Print only summary of the tables and status.
-metaonly Only check the state of the hbase:meta table.
-sidelineDir <hdfs://> HDFS path to backup existing meta.
-boundaries Verify that regions boundaries are the same between META and
store files.
-exclusive Abort if another hbck is exclusive or fixing.
Datafile Repair options: (expert features, use with caution!)
-checkCorruptHFiles Check all Hfiles by opening them to make sure they
are valid
-sidelineCorruptHFiles Quarantine corrupted HFiles. implies
-checkCorruptHFiles
Replication options
-fixReplication Deletes replication queues for removed peers
Metadata Repair options supported as of version 2.0: (expert features, use
with caution!)
-fixVersionFile Try to fix missing hbase.version file in hdfs.
-fixReferenceFiles Try to offline lingering reference store files
-fixHFileLinks Try to offline lingering HFileLinks
-noHdfsChecking Don't load/check region info from HDFS. Assumes hbase:meta
region info is good. Won't check/fix any HDFS issue, e.g. hole, orphan, or
overlap
-ignorePreCheckPermission ignore filesystem permission pre-check
NOTE: Following options are NOT supported as of HBase version 2.0+.
UNSUPPORTED Metadata Repair options: (expert features, use with caution!)
-fix Try to fix region assignments. This is for backwards
compatiblity
-fixAssignments Try to fix region assignments. Replaces the old -fix
-fixMeta Try to fix meta problems. This assumes HDFS region info
is good.
-fixHdfsHoles Try to fix region holes in hdfs.
-fixHdfsOrphans Try to fix region dirs with no .regioninfo file in hdfs
-fixTableOrphans Try to fix table dirs with no .tableinfo file in hdfs
(online mode only)
-fixHdfsOverlaps Try to fix region overlaps in hdfs.
-maxMerge <n> When fixing region overlaps, allow at most <n> regions to
merge. (n=5 by default)
-sidelineBigOverlaps When fixing region overlaps, allow to sideline big
overlaps
-maxOverlapsToSideline <n> When fixing region overlaps, allow at most <n>
regions to sideline per group. (n=2 by default)
-fixSplitParents Try to force offline split parents to be online.
-removeParents Try to offline and sideline lingering parents and keep
daughter regions.
-fixEmptyMetaCells Try to fix hbase:meta entries not referencing any region
(empty REGIONINFO_QUALIFIER rows)
UNSUPPORTED Metadata Repair shortcuts
-repair Shortcut for -fixAssignments -fixMeta -fixHdfsHoles
-fixHdfsOrphans -fixHdfsOverlaps -fixVersionFile -sidelineBigOverlaps
-fixReferenceFiles-fixHFileLinks
-repairHoles Shortcut for -fixAssignments -fixMeta -fixHdfsHoles
{code}
LGTM. Let me push it.
> hbase-2 needs to defend against hbck operations
> -----------------------------------------------
>
> Key: HBASE-18792
> URL: https://issues.apache.org/jira/browse/HBASE-18792
> Project: HBase
> Issue Type: Task
> Components: hbck
> Reporter: stack
> Assignee: Umesh Agashe
> Priority: Blocker
> Fix For: 2.0.0
>
> Attachments: hbase-18792.master.001.patch,
> hbase-18792.master.002.patch
>
>
> hbck needs updating to run against hbase2. Meantime, if an hbck from hbase1
> is run against hbck2, it may do damage. hbase2 should defend itself against
> hbck1 ops.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
