Commit Graph

226 Commits

Author SHA1 Message Date
Michael Stack 066082dff4
HBASE-21397 Set version to 2.1.1 on branch-2.1 in prep for first RC 2018-10-26 12:56:24 -07:00
Xu Cang 3df8b6f7bb
HBASE-18549 Add metrics for failed replication queue recovery
Signed-off-by: Andrew Purtell <apurtell@apache.org>
2018-10-01 18:39:07 -07:00
Kiran Kumar Maturi b7c2b953bc
HBASE-20857 balancer status tag in jmx metrics
Signed-off-by: Andrew Purtell <apurtell@apache.org>
2018-09-28 16:12:11 -07:00
zhangduo 1777ea3aae HBASE-20938 Set version to 2.1.1-SNAPSHOT for branch-2.1 2018-07-25 21:45:09 +08:00
zhangduo a2db3d27ff HBASE-20849 Set version as 2.1.0 in branch-2.1 in prep for first RC 2018-07-06 15:32:23 +08:00
Sean Busbey ee84a8f243 HBASE-20332 shaded mapreduce module shouldn't include hadoop
* modify the jar checking script to take args; make hadoop stuff optional
* separate out checking the artifacts that have hadoop vs those that don't.
* * Unfortunately means we need two modules for checking things
* * put in a safety check that the support script for checking jar contents is maintained in both modules
* * have to carve out an exception for o.a.hadoop.metrics2. :(
* fix duplicated class warning
* clean up dependencies in hbase-server and some modules that depend on it.
* allow Hadoop to have its own htrace where it needs it
* add a precommit check to make sure we're not using old htrace imports

 Conflicts:
	hbase-backup/pom.xml
	hbase-checkstyle/src/main/resources/hbase/checkstyle-suppressions.xml

Signed-off-by: Mike Drob <mdrob@apache.org>
2018-06-18 14:02:48 -07:00
Jan Hentschel 26e54e42cd HBASE-19724 Fixed Checkstyle errors in hbase-hadoop2-compat and enabled Checkstyle to fail on violations 2018-06-01 11:13:29 +02:00
Xu Cang f154afa7cd
HBASE-20233 Remove redundant region server metric
Remove unused import
2018-04-14 08:30:32 -07:00
Chia-Ping Tsai dd9e46bbf5 HBASE-20212 Make all Public classes have InterfaceAudience category
Signed-off-by: tedyu <yuzhihong@gmail.com>
Signed-off-by: Michael Stack <stack@apache.org>
2018-03-22 18:09:54 +08:00
Sean Busbey 71cc7869db HBASE-20155 update branch-2 version to 2.1.0-SNAPSHOT
Signed-off-by: Peter Somogyi <psomogyi@apache.org>
2018-03-08 08:44:30 -08:00
Sean Busbey 9927c2e14a HBASE-20070 refactor website generation
* rely on git plumbing commands when checking if we've built the site for a particular commit already
* switch to forcing '-e' for bash
* add command line switches for: path to hbase, working directory, and publishing
* only export JAVA/MAVEN HOME if they aren't already set.
* add some docs about assumptions
* Update javadoc plugin to consistently be version 3.0.0
* avoid duplicative site invocations on reactor modules
* update use of cp command so it works both on linux and mac
* manually skip enforcer plugin during build
* still doing install of all jars due to MJAVADOC-490, but then skip rebuilding during aggregate reports.
* avoid the pager on git-diff by teeing to a log file, which also helps later reviewing in the case of big changesets.

Signed-off-by: Michael Stack <stack@apache.org>
Signed-off-by: Misty Stanley-Jones <misty@apache.org>

 Conflicts:
	hbase-backup/pom.xml
	hbase-spark-it/pom.xml
2018-03-02 09:51:43 -06:00
Michael Stack a2de29560f HBASE-20113 Move branch-2 version from 2.0.0-beta-2-SNAPSHOT to 2.0.0-beta-2 2018-03-01 15:46:38 -08:00
Michael Stack 90a75fb052 HBASE-19888 Move branch-2 version from 2.0.0-beta-1 to 2.0.0-beta-2-SNAPSHOT 2018-01-29 14:17:54 -08:00
Duo Zhang bbf3bae72a
HBASE-19873 Add a CategoryBasedTimeout ClassRule for all UTs 2018-01-29 12:41:14 -08:00
Mike Drob 64cb777a8a HBASE-19552 find-and-replace thirdparty offset 2017-12-28 12:01:25 -06:00
Michael Stack d6d8369655
HBASE-19648 Move branch-2 version from 2.0.0-beta-1-SNAPSHOT to 2.0.0-beta-1 2017-12-27 14:41:19 -08:00
Chia-Ping Tsai 7dee1bcd31 HBASE-19644 add the checkstyle rule to reject the illegal imports 2017-12-28 04:17:45 +08:00
Balazs Meszaros 992b5d8630 HBASE-10092 Move up on to log4j2
Changes:
- replaced commons-logging to slf4j everywhere
- log.XXX(Throwable) calls were replaced with log.XXX(t.toString(), t)
- log.XXX(Object) calls were replaced with log.XXX(Objects.toString(obj))
- log.fatal() calls were replaced with log.error(HBaseMarkers.FATAL, ...)
- programmatic log4j configuration was removed from the unit test

This commit does not affect the current logging configurations, because log4j
is still on the classpath. slf4j-log4j12 binds log4j to slf4j.

Signed-off-by: Michael Stack <stack@apache.org>
2017-12-20 22:58:12 -08:00
Apekshit Sharma 73e3b0e825 HBASE-18942 hbase-hadoop2-compat module ignores hadoop-3 profile
Signed-off-by: Andrew Purtell <apurtell@apache.org>
2017-12-04 15:45:13 -08:00
Josh Elser fa5473c299 HBASE-19285 Implements table-level latency histograms
For a egionserver's view of a table (the regions
that belong to a table hosted on a regionserver),
this change tracks the latencies of operations that
affect the regions for this table.

Tracking at the per-table level avoids the memory bloat
and performance impact that accompanied the previous
per-region latency metrics while still providing important
details for operators to consume.

Signed-Off-By: Andrew Purtell <apurtell@apache.org>
2017-12-01 17:34:43 -05:00
Josh Elser 4fef4cfc30 HBASE-19267 Remove compiler-plugin mapping executions as it breaks Java8 detection
It seems like the original reason this execution filter was added is no
longer an issue for 2.0. Actually, these entries actually preclude
Eclipse from correctly using the Java8 source/target version that we
have specified (which creates numerous compilation errors in Eclipse)

Signed-off-by: Guanghao Zhang <zghao@apache.org>
2017-11-28 14:54:32 -05:00
Peter Somogyi bcd367e293
HBASE-19315 Incorrect snapshot version is used for 2.0.0-beta-1
Signed-off-by: Michael Stack <stack@apache.org>
2017-11-21 10:41:50 -08:00
Tamas Penzes 7a69ebc73e HBASE-18601: Update Htrace to 4.2
Updated HTrace version to 4.2
Created TraceUtil class to wrap htrace methods. Uses try with resources.

Signed-off-by: Balazs Meszaros <balazs.meszaros@cloudera.com>
Signed-off-by: Michael Stack <stack@apache.org>
2017-11-13 10:38:36 -08:00
Apekshit Sharma a6d8023ff5 HBASE-19128 Purge Distributed Log Replay from codebase, configurations, text; mark the feature as unsupported, broken. 2017-11-07 17:48:52 -08:00
Michael Stack f13cf56f1c
HBASE-19197 Move version on branch-2 from 2.0.0-alpha4 to 2.0.0-beta-1.SNAPSHOT 2017-11-06 20:46:38 -08:00
Mike Drob e268ec8d77 HBASE-18980 Suppress SelfComparison error in tests 2017-10-10 11:58:28 -05:00
Sean Busbey 35094bf4d5 HBASE-18933 set version number to 2.0.0-alpha4-SNAPSHOT following release of alpha3 2017-10-04 07:57:49 -05:00
Chia-Ping Tsai e047f518ef HBASE-18897 Substitute MemStore for Memstore 2017-10-02 21:10:11 +08:00
Michael Stack 7660f9e86a HBASE-18819 Set version number to 2.0.0-alpha3 from 2.0.0-alpha3-SNAPSHOT 2017-09-14 12:38:46 -07:00
Sean Busbey d576e5a32d HBASE-17823 Migrate to Apache Yetus Audience Annotations
Includes partial backport of hbase-build-configuration module

Signed-off-by: Michael Stack <stack@apache.org>
Signed-off-by: Misty Stanley-Jones <misty@apache.org>
2017-09-12 23:15:50 -05:00
Umesh Agashe bd219c0fb8 HBASE-18674 upgrading to commons-lang3
Signed-off-by: Michael Stack <stack@apache.org>
2017-09-05 09:46:49 -07:00
Biju Nair 5c1246296f HBASE-18652 Expose individual cache stats in a CombinedCache through JMX
Signed-off-by: tedyu <yuzhihong@gmail.com>
2017-09-05 08:14:52 -07:00
Michael Stack 43c4bc5761 HBASE-18723 [pom cleanup] Do a pass with dependency:analyze; remove unused and explicity list the dependencies we exploit
Do a pass with dependency:analyze; remove unused and
explicity list the dependencies we exploit.
Remove the parent dependencies set which had junit, mockito,
log4j, and findbugs annotations (had to put junit back
temporarily in subsequent version of this patch TODO). Listing in
parent set meant these libs were dependencies for all modules
which in practice was not the case. Edited all modules so
those that need any from this parent set now do explicit listing.

Ran the dependency:analyze over the project. Acted on most
suggested removals and requests for explicit listing. Some
grey areas remain around transitives that come in with
hadoop -needs better excludes, another project- and that
the dependency:analyze tool is not always accurate in its
reporting.
2017-09-01 08:03:35 -07:00
张世彬10204932 cc0e630d2b HBASE-18568 Correct metric of numRegions
Signed-off-by: tedyu <yuzhihong@gmail.com>
2017-08-28 19:40:21 -07:00
Guangxu Cheng e58670683b HBASE-18671 Support Append/Increment in rest api
Signed-off-by: tedyu <yuzhihong@gmail.com>
2017-08-25 07:57:39 -07:00
Michael Stack b24e33312a HBASE-18594 Release hbase-2.0.0-alpha2; ADDENDUM update version from 2.0.0-alpha2 to 2.0.0-alpha3-SNAPSHOT 2017-08-23 11:07:41 -07:00
Sukumar Maddineni 27120e2d03 HBASE-18644 Duplicate compactionQueueLength metric in Region Server metrics
Signed-off-by: Andrew Purtell <apurtell@apache.org>
2017-08-21 17:43:14 -07:00
Michael Stack add9974515 HBASE-18595 Set version in branch-2 from 2.0.0-alpha2-SNAPSHOT to 2.0.0-alpha2 2017-08-14 10:28:44 -07:00
Yu Li 56a4fedda2 HBASE-18469 Correct RegionServer metric of totalRequestCount 2017-08-11 14:15:03 +08:00
Josh Elser f262548b1f HBASE-18514 Squash of space quota "phase 2" work
Contains the following commits:

  HBASE-17748 Include HBase snapshots in space quotas

  Introduces a new Chore in the Master which computes the size
  of the snapshots included in a cluster. The size of these
  snapshots are included in the table's which the snapshot was created
  from HDFS usage.

  Includes some test stabilization, trying to make the tests more
  deterministic by ensuring we observe stable values as we know
  that those values are mutable. This should help avoid problems
  where size reports are delayed and we see an incomplete value.

  HBASE-17752 Shell command to list snapshot sizes WRT quotas

  HBASE-17840 Update hbase book to space quotas on snapshots
2017-08-07 16:32:16 -04:00
Zach York 0f20ec395a HBASE-18520 Add jmx value to determine true Master Start time
This is to determine how long it took in total for the master to start and finish initializing.

Signed-off-by: tedyu <yuzhihong@gmail.com>
2017-08-05 22:33:11 -07:00
Abhishek Singh Chouhan 08b5a4b2c6 HBASE-18374 RegionServer Metrics improvements 2017-07-31 12:44:27 +05:30
Abhishek Singh Chouhan 12b9a151e6 HBASE-15134 Add visibility into Flush and Compaction queues 2017-07-28 13:04:52 +05:30
Michael Stack d5c6e11016 HBASE-17908 Upgrade guava
Pull in guava 22.0 by using the shaded version up in new hbase-thirdparty project.

In poms, exclude guava everywhere except on hadoop-common. Do this so
we minimize transitive includes. hadoop-common is needed because hadoop
Configuration uses guava doing preconditions.

Everywhere we used guava, instead use shaded so fix a load of imports.

Stopwatch API changed as did hashing and toStringHelper which is now
in MoreObjects class. Otherwise, minimal changes to come up on 22.0
2017-07-21 15:41:52 +01:00
Sean Busbey 9cc9404261 HBASE-18187 update version to 2.0.0-alpha-2-SNAPSHOT 2017-07-14 11:20:32 -05:00
Peter Somogyi eacbdb061e HBASE-18264 Update pom plugins
Update plugins in main and subprojects
Unified versions to use variable instead of direct values

Affected plugins:
- apache-rat-plugin 0.11 -> 0.12
- asciidoctor-maven-plugin 1.5.2.1 -> 1.5.5
- asciidoctorj-pdf 1.5.0-alpha.6 -> 1.5.0-alpha.15
- build-helper-maven-plugin 1.9.1 -> 3.0.0
- buildnumber-maven-plugin 1.3 -> 1.4
- exec-maven-plugin 1.2.1/1.4.0 -> 1.6.0
- extra-enforcer-rules 1.0-beta-3 -> 1.0-beta-6
- findbugs-maven-plugin 3.0.0 -> 3.0.4
- jamon-maven-plugin 2.4.1 -> 2.4.2
- maven-bundle-plugin 2.5.3 -> 3.3.0
- maven-compiler-plugin 3.2/3.5.1 -> 3.6.1
- maven-eclipse-plugin 2.9 -> 2.10
- maven-shade-plugin 2.4.1 -> 3.0.0
- maven-surefire-plugin 2.18.1 -> 2.20
- maven-surefire-report-plugin 2.7.2 -> 2.20
- scala-maven-plugin 3.2.0 -> 3.2.2
- spotbugs 3.1.0-RC1 -> 3.1.0-RC3
- wagon-ssh 2.2 -> 2.12
- xml-maven-plugin 1.0 -> 1.0.1

- maven-assembly-plugin 2.4 -> 2.6(inherited)
- maven-dependency-plugin 2.4 -> 2.10 (inherited)
- maven-enforcer-plugin 1.3.1 -> 1.4.1 (inherited)
- maven-javadoc-plugin 2.10.3 -> 2.10.4 (inherited)
- maven-resources-plugin 2.7 (inherited)
- maven-site-plugin 3.4 -> 3.5.1 (inherited)

Change-Id: I84539f555be498dff18caed1e3eea1e1aeb2143a

Signed-off-by: Michael Stack <stack@apache.org>
2017-07-03 19:43:42 -07:00
Michael Stack adfb48eeb8 HBASE-18190 Set version in branch-2 to 2.0.0-alpha-1 2017-06-07 21:10:01 -07:00
Umesh Agashe 07c38e7165 HBASE-16549 Added new metrics for AMv2 procedures
Following AMv2 procedures are modified to override onSubmit(), onFinish() hooks provided by HBASE-17888 to do
metrics calculations when procedures are submitted and finshed:
* AssignProcedure
* UnassignProcedure
* MergeTableRegionProcedure
* SplitTableRegionProcedure
* ServerCrashProcedure

Following metrics is collected for each of the above procedure during lifetime of a process:
* Total number of requests submitted for a type of procedure
* Histogram of runtime in milliseconds for successfully completed procedures
* Total number of failed procedures

As we are moving away from Hadoop's metric2, hbase-metrics-api module is used for newly added metrics.

Modified existing tests to verify count of procedures.

Signed-off-by: Michael Stack <stack@apache.org>
2017-06-05 17:14:14 -07:00
Enis Soztutar 118429cbac HBASE-15160 Put back HFile's HDFS op latency sampling code and add metrics for monitoring (Yu Li and Enis Soztutar) 2017-06-02 17:41:53 -07:00
Michael Stack 3975bbd008 HBASE-14614 Procedure v2 - Core Assignment Manager (Matteo Bertozzi) Move to a new AssignmentManager, one that describes Assignment using a State Machine built on top of ProcedureV2 facility.
This doc. keeps state on where we are at w/ the new AM:
https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.vfdoxqut9lqn
Includes list of tests disabled by this patch with reasons why.

Based on patches from Matteos' repository and then fix up to get it all to pass cluster
tests, filling in some missing functionality, fix of findbugs, fixing bugs, etc..
including:

    1. HBASE-14616 Procedure v2 - Replace the old AM with the new AM.
    The basis comes from Matteo's repo here:
    689227fcbf

    Patch replaces old AM with the new under subpackage master.assignment.
    Mostly just updating classes to use new AM -- import changes -- rather
    than the old. It also removes old AM and supporting classes.
    See below for more detail.

    2. HBASE-14614 Procedure v2 - Core Assignment Manager (Matteo Bertozzi)
    3622cba4e3

    Adds running of remote procedure. Adds batching of remote calls.
    Adds support for assign/unassign in procedures. Adds version info
    reporting in rpc. Adds start of an AMv2.

    3. Reporting of remote RS version is from here:
    ddb4df3964.patch

    4. And remote dispatch of procedures is from:
    186b9e7c4d

    5. The split merge patches from here are also melded in:
    9a3a95a2c2
    and d6289307a0

We add testing util for new AM and new sets of tests.

Does a bunch of fixup on logging so its possible to follow a procedures' narrative by grepping
procedure id. We spewed loads of log too on big transitions such as master fail; fixed.

Fix CatalogTracker. Make it use Procedures doing clean up of Region data on split/merge.
Without these changes, ITBLL was failing at larger scale (3-4hours 5B rows) because we were
splitting split Regions among other things (CJ would run but wasn't
taking lock on Regions so havoc).

    Added a bunch of doc. on Procedure primitives.

    Added new region-based state machine base class. Moved region-based
    state machines on to it.

    Found bugs in the way procedure locking was doing in a few of the
    region-based Procedures. Having them all have same subclass helps here.

    Added isSplittable and isMergeable to the Region Interface.

    Master would split/merge even though the Regions still had
    references. Fixed it so Master asks RegionServer if Region
    is splittable.

    Messing more w/ logging. Made all procedures log the same and report
    the state the same; helps when logging is regular.

    Rewrote TestCatalogTracker. Enabled TestMergeTableRegionProcedure.

    Added more functionality to MockMasterServices so can use it doing
    standalone testing of Procedures (made TestCatalogTracker use it
    instead of its own version).

    Add to MasterServices ability to wait on Master being up -- makes
    it so can Mock Master and start to implement standalone split testing.
    Start in on a Split region standalone test in TestAM.

    Fix bug where a Split can fail because it comes in in the middle of
    a Move (by holding lock for duration of a Move).

    Breaks CPs that were watching merge/split. These are run by Master now
    so you need to observe on Master, not on RegionServer.

    Details:

    M hbase-client/src/main/java/org/apache/hadoop/hbase/ClusterStatus.java
    Takes List of regionstates on construction rather than a Set.
    NOTE!!!!! This is a change in a public class.

    M hbase-client/src/main/java/org/apache/hadoop/hbase/HRegionInfo.java
    Add utility getShortNameToLog

    M hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionImplementation.java
    M hbase-client/src/main/java/org/apache/hadoop/hbase/client/ShortCircuitMasterConnection.java
    Add support for dispatching assign, split and merge processes.

    M hbase-client/src/main/java/org/apache/hadoop/hbase/master/RegionState.java
    Purge old overlapping states: PENDING_OPEN, PENDING_CLOSE, etc.

    M hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/Procedure.java
    Lots of doc on its inner workings. Bug fixes.

    M hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java
    Log and doc on workings. Bug fixes.

    A hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/RemoteProcedureDispatcher.java
    Dispatch remote procedures every 150ms or 32 items -- which ever
    happens first (configurable). Runs a timeout thread. This facility is
    not on yet; will come in as part of a later fix. Currently works a
    region at a time. This class carries notion of a remote procedure and of a buffer full of these.
    "hbase.procedure.remote.dispatcher.threadpool.size" with default = 128
    "hbase.procedure.remote.dispatcher.delay.msec" with default = 150ms
    "hbase.procedure.remote.dispatcher.max.queue.size" with default = 32

    M hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/ProtobufUtil.java
    Add in support for merge. Remove no-longer used methods.

    M hbase-protocol-shaded/src/main/protobuf/Admin.proto b/hbase-protocol-shaded/src/main/protobuf/Admin.proto
    Add execute procedures call ExecuteProcedures.

    M hbase-protocol-shaded/src/main/protobuf/MasterProcedure.proto
    Add assign and unassign state support for procedures.

    M hbase-server/src/main/java/org/apache/hadoop/hbase/client/VersionInfoUtil.java
    Adds getting RS version out of RPC
    Examples: (1.3.4 is 0x0103004, 2.1.0 is 0x0201000)

    M hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
    Remove periodic metrics chore. This is done over in new AM now.
    Replace AM with the new. Host the procedures executor.

    M hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterMetaBootstrap.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterMetaBootstrap.java
    Have AMv2 handle assigning meta.

    M hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java
    Extract version number of the server making rpc.

    A hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/AssignProcedure.java
    Add new assign procedure. Runs assign via Procedure Dispatch.
    There can only be one RegionTransitionProcedure per region running at the time,
    since each procedure takes a lock on the region.

    D hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignCallable.java
    D hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
    D hbase-server/src/main/java/org/apache/hadoop/hbase/master/BulkAssigner.java
    D hbase-server/src/main/java/org/apache/hadoop/hbase/master/GeneralBulkAssigner.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/GeneralBulkAssigner.java
    Remove these hacky classes that were never supposed to live longer than
    a month or so to be replaced with real assigners.

    D hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStateStore.java
    D hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStates.java
    D hbase-server/src/main/java/org/apache/hadoop/hbase/master/UnAssignCallable.java

    A hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/AssignmentManager.java
    A procedure-based AM (AMv2).

    TODO
     - handle region migration
     - handle meta assignment first
     - handle sys table assignment first (e.g. acl, namespace)
     - handle table priorities
      "hbase.assignment.bootstrap.thread.pool.size"; default size is 16.
      "hbase.assignment.dispatch.wait.msec"; default wait is 150
      "hbase.assignment.dispatch.wait.queue.max.size"; wait max default is 100
      "hbase.assignment.rit.chore.interval.msec"; default is 5 * 1000;
      "hbase.assignment.maximum.attempts"; default is 10;

     A hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/MoveRegionProcedure.java
     Procedure that runs subprocedure to unassign and then assign to new location

     A hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/RegionStateStore.java
     Manage store of region state (in hbase:meta by default).

     A hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/RegionStates.java
     In-memory state of all regions. Used by AMv2.

     A hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/RegionTransitionProcedure.java
     Base RIT procedure for Assign and Unassign.

     A hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/UnassignProcedure.java
     Unassign procedure.

     A hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/RSProcedureDispatcher.java
     Run region assignement in a manner that pays attention to target server version.
     Adds "hbase.regionserver.rpc.startup.waittime"; defaults 60 seconds.
2017-05-31 17:49:11 -07:00