Includes the following, incorporating HBASE-20439 and HBASE-20440, too.
1)
HBASE-18133 Decrease quota reaction latency by HBase
Certain operations in HBase are known to directly affect
the utilization of tables on HDFS. When these actions
occur, we can circumvent the normal path and notify the
Master directly. This results in a much faster response to
changes in HDFS usage.
This requires FS scanning by the RS to be decoupled from
the reporting of sizes to the Master. An API inside each
RS is made so that any operation can hook into this call
in the face of other operations (e.g. compaction, flush,
bulk load).
2)
HBASE-18135 Implement mechanism for RegionServers to report file archival for space quotas
This de-couples the snapshot size calculation from the
SpaceQuotaObserverChore into another API which both the periodically
invoked Master chore and the Master service endpoint can invoke. This
allows for multiple sources of snapshot size to reported (from the
multiple sources we have in HBase).
When a file is archived, snapshot sizes can be more quickly realized and
the Master can still perform periodical computations of the total
snapshot size to account for any delayed/missing/lost file archival RPCs.
3)
HBASE-20531 RS may throw NPE when close meta regions in shutdown procedure.
Makes MergeTableRegionsProcedure do more than just two regions at a
time. Compatible as MTRP was done considering one day it'd do more than
two at a time.
Changes hardcoded assumption that merge parent regions are named
mergeA and mergeB in a column on the resultant region. Instead
can have N columns on the merged region, one for each parent
merged. Column qualifiers all being with 'merge'.
Most of code below is undoing the assumption that there are two
parents on a merge only.
This is a first cut at this patch. Implements hold fixing only
currently.
Add a fixMeta method to Hbck Interface.
M hbase-server/src/main/java/org/apache/hadoop/hbase/master/CatalogJanitor.java
Bug fix. If hole is on end of last table, I wasn't seeing it.
A hbase-server/src/main/java/org/apache/hadoop/hbase/master/MetaFixer.java
Add a general meta fixer class. Explains up top why this stuff doesn't
belong inside MetaTableAccessor.
M hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
Break out the filesystem messing so don't have to copy it nor do more
than is needed doing fixup for Region holes.
M hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionFileSystem.java
Change behavious slightly. If directory exists, don't fail as we did
but try and keep going and create .regioninfo file if missing (or
overwrite if in place). This should make it idempotent. Can rerun
command. Lets see if any repercussions in test suite.
A hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMetaFixer.java
Add test.
Signed-off-by: Zheng Hu <openinx@gmail.com>
Signed-off-by: Guanghao Zhang <zghao@apache.org>
Viraj Jasani
Ankit Singhal
Wellington Ramos Chevreuil
Udai Bhan Kashyap
Josh Elser
Viraj Jasani
Baiqiang Zhao
stack
Guanghao Zhang
Viraj Jasani
Geoffrey Jacoby
Mike Drob
Andrew Purtell
Jingyun Tian
meiyi
zhangduo
Syeda
Wellington Chevreuil
meiyi
Umesh Agashe
Allan Yang