I'm taking a look at the TestIOFencing. I can repro locally. Thanks Ted for
reporting.

Enis


On Fri, Jun 27, 2014 at 8:16 PM, Ted Yu <[email protected]> wrote:

> Enis:
> I ran test suite on Linux and found that TestIOFencing hung.
>
> jstack is here:
> http://people.apache.org/~tedyu/TestIOFencing.stack
>
> Unfortunately there was no test output.
>
> Will continue digging in the coming days.
>
> Cheers
>
>
> On Fri, Jun 27, 2014 at 7:32 PM, Enis Söztutar <[email protected]> wrote:
>
> > Update:
> >
> > I've completed the merge for branch hbase-10070 to master now. As a short
> > reminder the committed changes include phase 1 work for the new feature
> > called "read high availability using timeline consistent reads with
> region
> > replicas". Some more context can be found in [1] and vote thread here
> [2].
> >
> > The merge contains 44 commits in total as follows. I've uploaded the
> > committed patches to relevant jiras, and set the fix versions for the
> jiras
> > as well (using git format-patch and the excellent jira-cli client).
> >
> > Applying: HBASE-10347 HRegionInfo changes for adding replicaId and
> > MetaEditor/MetaReader changes for region replicas
> > Applying: HBASE-10354 Add an API for defining consistency per request
> > Applying: HBASE-10348. HTableDescriptor changes for region replicas
> > Applying: HBASE-10517 NPE in MetaCache.clearCache()
> > Applying: HBASE-10354. Addendum commit. 10354.add.patch committed
> > Applying: HBASE-10356 Failover RPC's for multi-get
> > Applying: HBASE-10350. Master/AM/RegionStates changes to create and
> assign
> > region replicas (ddas)
> > Applying: HBASE-10359 Master/RS WebUI changes for region replicas
> > Applying: HBASE-10361. Enable/AlterTable support for region replicas
> (ddas)
> > Applying: HBASE-10352 Region and RegionServer changes for opening region
> > replicas, and refreshing store files
> > Applying: HBASE-10362. HBCK changes for supporting region replicas
> > Applying: HBASE-10351 LoadBalancer changes for supporting region replicas
> > Applying: HBASE-10630 NullPointerException in
> > ConnectionManager$HConnectionImplementation.locateRegionInMeta() due to
> > missing region info
> > Applying: HBASE-10633. StoreFileRefresherChore throws
> > ConcurrentModificationException sometimes
> > Applying: HBASE-10672. Table snapshot should handle tables whose
> > REGION_REPLICATION is greater than one
> > Applying: HBASE-10620. LoadBalancer.needsBalance() should check for
> > co-located region replicas as well
> > Applying: HBASE-10355 Failover RPC's from client using region replicas
> > Applying: HBASE-10704 BaseLoadBalancer#roundRobinAssignment() may add
> same
> > region to assignment plan multiple times
> > Applying: HBASE-10572 Create an IntegrationTest for region replicas
> > Applying: HBASE-10729. Enable table doesn't balance out replicas evenly
> if
> > the replicas were unassigned earlier
> > Applying: HBASE-10620 LoadBalancer.needsBalance() should check for
> > co-located region replicas as well (Addendum patch to fix return value
> from
> > balance() call)
> > Applying: HBASE-10734. Fix RegionStates.getRegionAssignments to not add
> > duplicate regions
> > Applying: HBASE-10616. Integration test for multi-get calls
> > Applying: HBASE-10743. Replica map update is problematic in RegionStates
> > Applying: HBASE-10616. Addendum that fixes the case of multiget_batchsize
> > == 1
> > Applying: HBASE-10778 Unique keys accounting in MultiThreadedReader is
> > incorrect
> > Applying: HBASE-10858 TestRegionRebalancing is failing
> > Applying: HBASE-10817 Add some tests on a real cluster for replica: multi
> > master, replication
> > Applying: HBASE-10701 Cache invalidation improvements from client side
> > Applying: HBASE-10859 Use HFileLink in opening region files from
> > secondaries
> > Applying: HBASE-10791 Add integration test to demonstrate performance
> > improvement
> > Applying: HBASE-10634 Multiget doesn't fully work
> > Applying: HBASE-10794 multi-get should handle replica location missing
> from
> > cache
> > Applying: HBASE-10785 Metas own location should be cached
> > Applying: HBASE-10957 HMaster can abort with NPE in #rebuildUserRegions
> > (Nicolas Liochon)
> > Applying: HBASE-10661
> > TestStochasticLoadBalancer.testRegionReplicationOnMidClusterWithRacks()
> is
> > flaky
> > Applying: HBASE-10513 Provide user documentation for region replicas
> > Applying: HBASE-10810 LoadTestTool should share the connection and
> > connection pool
> > Applying: HBASE-10357 Failover RPC's for scans (Devaraj Das)
> > Applying: HBASE-11214. Fixes for scans on a replicated table
> > Applying: HBASE-10818. Add integration test for bulkload with replicas
> > (Nick Dimiduk and Devaraj Das)
> > Applying: HBASE-10818. Addendum to reduce the number of times sleep
> happens
> > in the coprocessor. Also, puts back code to set consistency that got
> > deleted by accident in the last commit.
> > Applying: HBASE-11332 Fix for metas location cache from HBASE-10785
> > Applying: Increase -XX:MaxPermSize for unit tests
> >
> >
> > Unit tests should be working now, but in case it fails on the apache
> infra,
> > I'll take a closer look at the jenkins build at
> > https://builds.apache.org/view/All/job/HBase-TRUNK/. We've been running
> > the
> > integration tests as well but ideally we want to spend some more time on
> > perf regression analysis and long tail latency improvements. We can iron
> > out the edges in time. Nicolas has already been doing work around this.
> >
> > Let me know if you see any issues related to this merge.
> >
> >
> > [1]
> > https://mail-archives.apache.org/mod_mbox/hbase-dev/201405.mbox/browser
> > [2]
> >
> >
> https://mail-archives.apache.org/mod_mbox/hbase-dev/201406.mbox/%3CCAMUu0w8uvb29%2BQYpZ8VwSO4qEpKRyKGNPzyj1kw7tLRhLPoZkA%40mail.gmail.com%3E
> >
> >
> >
> >
> > On Fri, Jun 27, 2014 at 7:03 PM, Ted Yu <[email protected]> wrote:
> >
> > > Good job.
> > >
> > >
> > > On Fri, Jun 27, 2014 at 5:45 PM, Enis Söztutar <[email protected]>
> wrote:
> > >
> > > > Pushed the rebased branch. You can go crazy on the master now.
> > > >
> > > > Enis
> > > >
> > > >
> > > > On Fri, Jun 27, 2014 at 4:37 PM, Enis Söztutar <[email protected]>
> > wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > I am merging the hbase-10070 branch to master. No checkins please.
> > > > >
> > > > > We were able to get unit tests working, and IT's working. There may
> > be
> > > a
> > > > > couple of edge cases after rebase, but we can resolve them in
> master.
> > > > >
> > > > > I'll send a detailed update once done.
> > > > >
> > > > > Enis
> > > > >
> > > >
> > >
> >
>

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