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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: [VOTE] The 1st hbase 0.94.15 release candidate is available for download
Date Thu, 19 Dec 2013 15:01:46 GMT
tl;tr see arrow below.

Downloaded and checked signature for bother vanilla and secured. Passed.
Random checked documentation and CHANGES.txt. Passed

On a single node cluster:
Ran the tests. All passed.
Ran IntegrationTestLoadAndVerify. Got  REFERENCES_CHECKED=9855424, expected
10000000? Failed?
Ran IntegrationTestBigLinkedList. Passed.
Ran HBCK after those tests and got many errors about _original-evil-name
and clone tables.
Cleared everything, restarted HBase. Re-ran IntegrationTestBigLinkedList,
HBCK ok. Re-ran IntegrationTestLoadAndVerify, failed again:
13/12/18 21:24:24 ERROR test.IntegrationTestBigLinkedList$Verify: Expected
referenced count does not match with actual referenced count. expected
referenced=3000000 ,actual=9000000
Exception in thread "main" java.lang.RuntimeException: Verify.verify failed
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)

But now HBCK is clean. Figured that HBCK issue is because of some leftover
from org.apache.hadoop.hbase.regionserver.TestStoreFile who is writting in
the same directory as the default standalone HBase.

>From the shell, create a table 15 regions, put, compact, scan, etc. Table
definition is VERSIONS => 2. However, scan 't1', {RAW => true, VERSIONS =>
10} still return 3 versions even after flush/compact/major_compact:
hbase(main):034:0> scan 't1', {RAW => true, VERSIONS => 10}

 rowkey                                                   column=f1:c1,

 rowkey                                                   column=f1:c1,

 rowkey                                                   column=f1:c1,

1 row(s) in 0.0570 seconds

Will have expected only 2 to be return.

Stopped HBase, checked the log, everything is fine.

Now on a 7 nodes cluster:
Deployed jars and did rolling restart on a 0.94.14 cluster. Passed.
Configured default balancer, merged a 60 region table to a single region,
restarted the cluster, all fine.
major_compact the table to get it split into 60 regions, balancer, all fine
except that balancer need to be run twice to get correct balancing.
Some "No serialized HRegionInfo in keyvalues" in the logs not related to
the tables I'm "playing" with.
Restored customized balancer, restarted, rebalanced, all fine.
Ran IntegrationTestLoadAndVerify. Got  REFERENCES_CHECKED=9855645, expected
10000000? Failed?
Ran IntegrationTestBigLinkedList. Passed.

Last, I tried to run IntegrationTestsDriver but it failed. I need to look
at that.

hbase@node3:~/hbase-0.94.3$ bin/hbase
Exception in thread "main" java.lang.AbstractMethodError:
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)

=====> tl;tr:
- Small issue with balancer when 60 regions assigned to a single server.
Need to run twice to get that correctly balanced;
- Leftover in the wrong place from
- Table with VERSIONS => 2 returns 3 versions instead of 2;
- IntegrationTestsDriver not running.

I don't think there is anything here to stop the release but there is still
few things that need to be looked at.


2013/12/18 lars hofhansl <larsh@apache.org>

> The 1st 0.94.15 RC is available for download at
> http://people.apache.org/~larsh/hbase-0.94.15-rc0/
> Signed with my code signing key: C7CFE328
> HBase 0.94.15 is a bug fix release along with some performance
> improvements:
>     [HBASE-7886] - [replication] hlog zk node will not be deleted if
> client roll hlog
>     [HBASE-9485] - TableOutputCommitter should implement recovery if we
> don't want jobs to start from 0 on RM restart
>     [HBASE-9995] - Not stopping ReplicationSink when using custom
> implementation for the ReplicationSink
>     [HBASE-10014] - HRegion#doMiniBatchMutation rollbacks the memstore
> even if there is nothing to rollback.
>     [HBASE-10015] - Replace intrinsic locking with explicit locks in
> StoreScanner
>     [HBASE-10026] - HBaseAdmin#createTable could fail if region splits too
> fast
>     [HBASE-10046] - Unmonitored HBase service could accumulate Status
> objects and OOM
>     [HBASE-10057] - TestRestoreFlushSnapshotFromClient and
> TestRestoreSnapshotFromClient fail to finish occasionally
>     [HBASE-10061] - TableMapReduceUtil.findOrCreateJar calls
> updateMap(null, ) resulting in thrown NPE
>     [HBASE-10064] - AggregateClient.validateParameters can throw NPE
>     [HBASE-10089] - Metrics intern table names cause eventual permgen OOM
> in 0.94
>     [HBASE-10111] - Verify that a snapshot is not corrupted before
> restoring it
>     [HBASE-10112] - Hbase rest query params for maxVersions and maxValues
> are not parsed
>     [HBASE-10117] - Avoid synchronization in
> HRegionScannerImpl.isFilterDone
>     [HBASE-10120] - start-hbase.sh doesn't respect --config in
> non-distributed mode
>     [HBASE-10179] - HRegionServer underreports readRequestCounts by 1
> under certain conditions
>     [HBASE-10181] - HBaseObjectWritable.readObject catches
> DoNotRetryIOException and wraps it back in a regular IOException
>     [HBASE-9931] - Optional setBatch for CopyTable to copy large rows in
> batches
>     [HBASE-10001] - Add a coprocessor to help testing the performances
> without taking into account the i/o
>     [HBASE-10007] - PerformanceEvaluation: Add sampling and latency
> collection to randomRead test
>     [HBASE-10010] - eliminate the put latency spike on the new log file
> beginning
>     [HBASE-10048] - Add hlog number metric in regionserver
>     [HBASE-10049] - Small improvments in region_mover.rb
>     [HBASE-10093] - Unregister ReplicationSource metric bean when the
> replication source thread is terminated
>     [HBASE-9047] - Tool to handle finishing replication when the cluster
> is offline
>     [HBASE-10119] - Allow HBase coprocessors to clean up when they fail
>     [HBASE-9927] - ReplicationLogCleaner#stop() calls
> HConnectionManager#deleteConnection() unnecessarily
>     [HBASE-9986] - Incorporate HTTPS support for HBase (0.94 port)
>     [HBASE-10058] - Test for HBASE-9915 (avoid reading index blocks)
>     [HBASE-10189] - Intermittent TestReplicationSyncUpTool failure
> The list of changes is also available here:
> https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12325559
> Here're the jenkins runs for this RC:
> https://builds.apache.org/job/HBase-0.94.15/2/ and
> https://builds.apache.org/job/HBase-0.94.15-security/1/
> Please try out the RC, check out the doc, take it for a spin, etc, and
> vote +1/-1 by EOD December 27th on whether we should release this as
> 0.94.15. (9 days because of the holidays)
> Thanks.
> -- Lars

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