[jira] [Reopened] (HBASE-20472) InfoServer doesnot honour any acl set by the admin

2018-10-03 Thread Nihal Jain (JIRA)


 [ 
https://issues.apache.org/jira/browse/HBASE-20472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Nihal Jain reopened HBASE-20472:


> InfoServer doesnot honour any acl set by the admin
> --
>
> Key: HBASE-20472
> URL: https://issues.apache.org/jira/browse/HBASE-20472
> Project: HBase
>  Issue Type: Bug
>  Components: security, UI
>Reporter: Nihal Jain
>Assignee: Nihal Jain
>Priority: Critical
> Fix For: 3.0.0
>
> Attachments: HBASE-20472.master.001.patch
>
>
> The adminsAcl property can be used to restrict access to certain sections of 
> the web UI only to a particular set of users/groups. But in hbase,  adminAcl 
> variable for InfoServer is always null, rendering it to not honour any acl 
> set by the admin. In fact I could not find any property in hbase to specify 
> acl list for web server.
> *Analysis*:
>  * *InfoSever* object forgets(?) to set any *adminAcl* in the builder object 
> for http server.
> {code:java}
> public InfoServer(String name, String bindAddress, int port, boolean findPort,
> final Configuration c) {
> .
> .
>
> HttpServer.Builder builder =
> new org.apache.hadoop.hbase.http.HttpServer.Builder();
> .
> .
> this.httpServer = builder.build();
> }{code}
> [See InfoServer 
> constructor|https://github.com/apache/hbase/blob/46cb5dfa226892fd2580f26ce9ce77225bd7e67c/hbase-http/src/main/java/org/apache/hadoop/hbase/http/InfoServer.java#L55]
>  * http server retreives a null value and sets it as adminsAcl, which is 
> passed to *createWebAppContext*() method
> {code:java}
> private HttpServer(final Builder b) throws IOException {
> .
> .
> .
> this.adminsAcl = b.adminsAcl;
> this.webAppContext = createWebAppContext(b.name, b.conf, adminsAcl, 
> appDir);
> 
> .
> .
> }{code}
> [See L527 
> HttpServer.java|https://github.com/apache/hbase/blob/46cb5dfa226892fd2580f26ce9ce77225bd7e67c/hbase-http/src/main/java/org/apache/hadoop/hbase/http/HttpServer.java#L527]
>  * This method next sets *ADMIN_ACL* attribute for the servlet context to 
> *null*
> {code:java}
> private static WebAppContext createWebAppContext(String name,
> Configuration conf, AccessControlList adminsAcl, final String appDir) {
> WebAppContext ctx = new WebAppContext();
> .
> .
> ctx.getServletContext().setAttribute(ADMINS_ACL, adminsAcl);
> .
> .
> }
> {code}
>  * Now any page having *HttpServer.hasAdministratorAccess*() will allow 
> access to everyone, making this check useless. 
> {code:java}
> @Override
> public void doGet(HttpServletRequest request, HttpServletResponse response
> ) throws ServletException, IOException {
> // Do the authorization
> if (!HttpServer.hasAdministratorAccess(getServletContext(), request,
> response)) {
> return;
> }
> .
> .
> }{code}
> [For example See L104 
> LogLevel.java|https://github.com/apache/hbase/blob/46cb5dfa226892fd2580f26ce9ce77225bd7e67c/hbase-http/src/main/java/org/apache/hadoop/hbase/http/log/LogLevel.java#L104]
>  * *hasAdministratorAccess()* checks for the following and returns true, in 
> any case as *ADMIN_ACL* is always *null*
> {code:java}
> public static boolean hasAdministratorAccess(
> ServletContext servletContext, HttpServletRequest request,
> HttpServletResponse response) throws IOException {
> .
> .
> if (servletContext.getAttribute(ADMINS_ACL) != null &&
> !userHasAdministratorAccess(servletContext, remoteUser)) {
>   response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "User "
>  + remoteUser + " is unauthorized to access this page.");
>return false;
> }
> return true;
> }{code}
> [See line 1196 in 
> HttpServer|https://github.com/apache/hbase/blob/46cb5dfa226892fd2580f26ce9ce77225bd7e67c/hbase-http/src/main/java/org/apache/hadoop/hbase/http/HttpServer.java#L1196]
>  



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[jira] [Resolved] (HBASE-20472) InfoServer doesnot honour any acl set by the admin

2018-10-03 Thread Nihal Jain (JIRA)


 [ 
https://issues.apache.org/jira/browse/HBASE-20472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Nihal Jain resolved HBASE-20472.

Resolution: Duplicate

> InfoServer doesnot honour any acl set by the admin
> --
>
> Key: HBASE-20472
> URL: https://issues.apache.org/jira/browse/HBASE-20472
> Project: HBase
>  Issue Type: Bug
>  Components: security, UI
>Reporter: Nihal Jain
>Assignee: Nihal Jain
>Priority: Critical
> Fix For: 3.0.0
>
> Attachments: HBASE-20472.master.001.patch
>
>
> The adminsAcl property can be used to restrict access to certain sections of 
> the web UI only to a particular set of users/groups. But in hbase,  adminAcl 
> variable for InfoServer is always null, rendering it to not honour any acl 
> set by the admin. In fact I could not find any property in hbase to specify 
> acl list for web server.
> *Analysis*:
>  * *InfoSever* object forgets(?) to set any *adminAcl* in the builder object 
> for http server.
> {code:java}
> public InfoServer(String name, String bindAddress, int port, boolean findPort,
> final Configuration c) {
> .
> .
>
> HttpServer.Builder builder =
> new org.apache.hadoop.hbase.http.HttpServer.Builder();
> .
> .
> this.httpServer = builder.build();
> }{code}
> [See InfoServer 
> constructor|https://github.com/apache/hbase/blob/46cb5dfa226892fd2580f26ce9ce77225bd7e67c/hbase-http/src/main/java/org/apache/hadoop/hbase/http/InfoServer.java#L55]
>  * http server retreives a null value and sets it as adminsAcl, which is 
> passed to *createWebAppContext*() method
> {code:java}
> private HttpServer(final Builder b) throws IOException {
> .
> .
> .
> this.adminsAcl = b.adminsAcl;
> this.webAppContext = createWebAppContext(b.name, b.conf, adminsAcl, 
> appDir);
> 
> .
> .
> }{code}
> [See L527 
> HttpServer.java|https://github.com/apache/hbase/blob/46cb5dfa226892fd2580f26ce9ce77225bd7e67c/hbase-http/src/main/java/org/apache/hadoop/hbase/http/HttpServer.java#L527]
>  * This method next sets *ADMIN_ACL* attribute for the servlet context to 
> *null*
> {code:java}
> private static WebAppContext createWebAppContext(String name,
> Configuration conf, AccessControlList adminsAcl, final String appDir) {
> WebAppContext ctx = new WebAppContext();
> .
> .
> ctx.getServletContext().setAttribute(ADMINS_ACL, adminsAcl);
> .
> .
> }
> {code}
>  * Now any page having *HttpServer.hasAdministratorAccess*() will allow 
> access to everyone, making this check useless. 
> {code:java}
> @Override
> public void doGet(HttpServletRequest request, HttpServletResponse response
> ) throws ServletException, IOException {
> // Do the authorization
> if (!HttpServer.hasAdministratorAccess(getServletContext(), request,
> response)) {
> return;
> }
> .
> .
> }{code}
> [For example See L104 
> LogLevel.java|https://github.com/apache/hbase/blob/46cb5dfa226892fd2580f26ce9ce77225bd7e67c/hbase-http/src/main/java/org/apache/hadoop/hbase/http/log/LogLevel.java#L104]
>  * *hasAdministratorAccess()* checks for the following and returns true, in 
> any case as *ADMIN_ACL* is always *null*
> {code:java}
> public static boolean hasAdministratorAccess(
> ServletContext servletContext, HttpServletRequest request,
> HttpServletResponse response) throws IOException {
> .
> .
> if (servletContext.getAttribute(ADMINS_ACL) != null &&
> !userHasAdministratorAccess(servletContext, remoteUser)) {
>   response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "User "
>  + remoteUser + " is unauthorized to access this page.");
>return false;
> }
> return true;
> }{code}
> [See line 1196 in 
> HttpServer|https://github.com/apache/hbase/blob/46cb5dfa226892fd2580f26ce9ce77225bd7e67c/hbase-http/src/main/java/org/apache/hadoop/hbase/http/HttpServer.java#L1196]
>  



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[jira] [Resolved] (HBASE-21222) [amv2] Closing region on a non-existent server creates STUCK regions

2018-10-03 Thread stack (JIRA)


 [ 
https://issues.apache.org/jira/browse/HBASE-21222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

stack resolved HBASE-21222.
---
Resolution: Duplicate

Resolving as duplicate of HBASE-21259. It goes into more depth on why we 
suspend/get STUCK.

> [amv2] Closing region on a non-existent server creates STUCK regions
> 
>
> Key: HBASE-21222
> URL: https://issues.apache.org/jira/browse/HBASE-21222
> Project: HBase
>  Issue Type: Bug
>  Components: amv2
>Reporter: stack
>Assignee: stack
>Priority: Major
>
> Ran into this one where a Region had been on a server but after a bunch of 
> crashing and meddling in Master Proc WALs, any attempt at unassign has the 
> procedure fail (see below) and then report the region as STUCK.
> I broke the lock w/ new hbck2 tooling and then tried to offline again but 
> same thing happened. Bug. Fix.
> {code}
> 2018-09-22 18:36:41,900 INFO 
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure: Dispatch 
> pid=138650, ppid=121871, state=RUNNABLE:REGION_TRANSITION_DISPATCH, 
> locked=true; UnassignProcedure 
> table=IntegrationTestBigLinkedList_20180614072614, 
> region=51cdade76ca7217ec191f39e5f56c61c, 
> server=vd0637.halxg.cloudera.com,22101,1537397969558; rit=CLOSING, 
> location=vd0637.halxg.cloudera.com,22101,1537397969558
> 2018-09-22 18:36:41,899 INFO 
> org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler: 
> pid=138646, ppid=121871, state=RUNNABLE:REGION_TRANSITION_DISPATCH; 
> UnassignProcedure table=IntegrationTestBigLinkedList_20180614072614, 
> region=0780467efe4c5901887fb12bfa406fa7, 
> server=vc1228.halxg.cloudera.com,22101,1537578279837 checking lock on 
> 0780467efe4c5901887fb12bfa406fa7
> 2018-09-22 18:36:41,900 WARN 
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure: Remote 
> call failed vd0637.halxg.cloudera.com,22101,1537397969558; pid=138650, 
> ppid=121871, state=RUNNABLE:REGION_TRANSITION_DISPATCH, locked=true; 
> UnassignProcedure table=IntegrationTestBigLinkedList_20180614072614, 
> region=51cdade76ca7217ec191f39e5f56c61c, 
> server=vd0637.halxg.cloudera.com,22101,1537397969558; rit=CLOSING, 
> location=vd0637.halxg.cloudera.com,22101,1537397969558; 
> exception=NoServerDispatchException
> org.apache.hadoop.hbase.procedure2.NoServerDispatchException: 
> vd0637.halxg.cloudera.com,22101,1537397969558; pid=138650, ppid=121871, 
> state=RUNNABLE:REGION_TRANSITION_DISPATCH, locked=true; UnassignProcedure 
> table=IntegrationTestBigLinkedList_20180614072614, 
> region=51cdade76ca7217ec191f39e5f56c61c, 
> server=vd0637.halxg.cloudera.com,22101,1537397969558
> at 
> org.apache.hadoop.hbase.procedure2.RemoteProcedureDispatcher.addOperationToNode(RemoteProcedureDispatcher.java:177)
> at 
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure.addToRemoteDispatcher(RegionTransitionProcedure.java:277)
> at 
> org.apache.hadoop.hbase.master.assignment.UnassignProcedure.updateTransition(UnassignProcedure.java:202)
> at 
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure.execute(RegionTransitionProcedure.java:370)
> at 
> org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure.execute(RegionTransitionProcedure.java:97)
> at 
> org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:924)
> at 
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1684)
> at 
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1471)
> at 
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$900(ProcedureExecutor.java:77)
> at 
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1983)
> 2018-09-22 18:36:41,903 WARN 
> org.apache.hadoop.hbase.master.assignment.UnassignProcedure: Expiring 
> vd0637.halxg.cloudera.com,22101,1537397969558, pid=138650, ppid=121871, 
> state=RUNNABLE:REGION_TRANSITION_DISPATCH, locked=true; UnassignProcedure 
> table=IntegrationTestBigLinkedList_20180614072614, 
> region=51cdade76ca7217ec191f39e5f56c61c, 
> server=vd0637.halxg.cloudera.com,22101,1537397969558 rit=CLOSING, 
> location=vd0637.halxg.cloudera.com,22101,1537397969558; 
> exception=NoServerDispatchException
> {code}



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[jira] [Created] (HBASE-21264) Namespace Quota : Split after exceeding maxregions- regions went to other regions state and never come back online

2018-10-03 Thread Chandra Sekhar (JIRA)
Chandra Sekhar created HBASE-21264:
--

 Summary: Namespace Quota : Split after exceeding maxregions- 
regions went to other regions state and never come back online
 Key: HBASE-21264
 URL: https://issues.apache.org/jira/browse/HBASE-21264
 Project: HBase
  Issue Type: Bug
  Components: Region Assignment
Reporter: Chandra Sekhar


{{As my namespace quota (max regions = 5) exceeds, when i perform split region 
more than 4 times, regions went to Other Regions state and never come back 
online. It was showing 0 Online Regions}}

{{Scenario:}}
{noformat}
1. Create namespace with quota - 5 max regions
2. Create table
3. Split the table more than 5 split keys
{noformat}





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Re: [VOTE] The first HBase 1.4.8 release candidate (RC0) is available

2018-10-03 Thread Balazs Meszaros
+1

- signatures, checksums: OK
- rat check: OK
- built from source (8u112): OK
- unit tests (8u112): OK
- ltt with 1M rows: OK
- web UI: OK
- shell and basic commands: OK

Thanks,
Balazs

On Wed, Oct 3, 2018 at 2:58 AM Andrew Purtell  wrote:

> The first HBase 1.4.8 release candidate (RC0) is available for download at
> https://dist.apache.org/repos/dist/dev/hbase/hbase-1.4.8RC0/ and Maven
> artifacts are available in the temporary repository
> https://repository.apache.org/content/repositories/orgapachehbase-1233/
>
> The git tag corresponding to the candidate is '1.4.8RC0' (91118ce5f1).
>
> A detailed source and binary compatibility report for this release is
> available for your review at
>
> https://dist.apache.org/repos/dist/dev/hbase/hbase-1.4.8RC0/compat-check-report.html
> . There are no reported compatibility issues.
>
> A list of the 33 issues resolved in this release can be found at
> https://s.apache.org/xpxo .
>
> Please try out the candidate and vote +1/0/-1.
>
> The vote will be open for at least 72 hours. Unless objection I will try to
> close it Monday October 8, 2018 if we have sufficient votes.
>
> Prior to making this announcement I made the following preflight checks:
>
> RAT check passes (7u80)
> Unit test suite passes (7u80, 8u181)
> Opened the UI in a browser, poked around
> LTT load 1M rows with 100% verification and 20% updates (8u181)
> ITBLL 500M rows with serverKilling monkey (8u181)
>
>
> --
> Best regards,
> Andrew
>
> Words like orphans lost among the crosstalk, meaning torn from truth's
> decrepit hands
>- A23, Crosstalk
>


[jira] [Resolved] (HBASE-19444) RSGroups test units cannot be concurrently executed

2018-10-03 Thread Andrew Purtell (JIRA)


 [ 
https://issues.apache.org/jira/browse/HBASE-19444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Andrew Purtell resolved HBASE-19444.

   Resolution: Duplicate
Fix Version/s: (was: 1.4.9)
   (was: 2.2.0)
   (was: 1.5.0)
   (was: 3.0.0)

Duping this out. Replacing with a task issue to break up TestRSGroups into 
smaller units. Current run time is ~240 seconds / 4 minutes and the test is 
only stable when run by itself.

> RSGroups test units cannot be concurrently executed
> ---
>
> Key: HBASE-19444
> URL: https://issues.apache.org/jira/browse/HBASE-19444
> Project: HBase
>  Issue Type: Bug
>Affects Versions: 1.4.0
>Reporter: Andrew Purtell
>Priority: Minor
>
> TestRSGroups and friends cannot be concurrently executed or they are very 
> likely to flake, failing with constraint exceptions. If executed serially all 
> units pass. Fix for concurrent execution.



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[jira] [Created] (HBASE-21265) Split up TestRSGroups

2018-10-03 Thread Andrew Purtell (JIRA)
Andrew Purtell created HBASE-21265:
--

 Summary: Split up TestRSGroups
 Key: HBASE-21265
 URL: https://issues.apache.org/jira/browse/HBASE-21265
 Project: HBase
  Issue Type: Task
  Components: rsgroup, test
Affects Versions: 1.4.8
Reporter: Andrew Purtell
 Fix For: 3.0.0, 1.5.0, 2.2.0


TestRSGroups is flaky. It is stable when run in isolation but when run as part 
of the suite with concurrent executors it can fail. The current running time of 
this unit on my dev box is ~240 seconds (4 minutes), which is far too much 
time. This unit should be broken up 5 to 8 ways, grouped by functionality under 
test. 



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Re: [VOTE] The first HBase 1.4.8 release candidate (RC0) is available

2018-10-03 Thread Andrew Purtell
RC errata:

TestRSGroups will pass in isolation but may fail when run as part of the
suite. There have been several JIRAs filed against this unit like
HBASE-19444, HBASE-19461, HBASE-20137, and mentioned on HBASE-21187. It's
running time is far too long. I have filed HBASE-21265 to split it up. Test
stabilization work would be a part of that. I don't think  this rises to
the level of failing the RC vote because TestRSGroups will pass
consistently, at least for me, when run in isolation. I do agree that
without work to improve the test it doesn't offer the kind of functional
assurance we'd like to derive from a unit test.


On Tue, Oct 2, 2018 at 5:57 PM Andrew Purtell  wrote:

> The first HBase 1.4.8 release candidate (RC0) is available for download at
> https://dist.apache.org/repos/dist/dev/hbase/hbase-1.4.8RC0/ and Maven
> artifacts are available in the temporary repository
> https://repository.apache.org/content/repositories/orgapachehbase-1233/
>
> The git tag corresponding to the candidate is '1.4.8RC0' (91118ce5f1).
>
> A detailed source and binary compatibility report for this release is
> available for your review at
> https://dist.apache.org/repos/dist/dev/hbase/hbase-1.4.8RC0/compat-check-report.html
> . There are no reported compatibility issues.
>
> A list of the 33 issues resolved in this release can be found at
> https://s.apache.org/xpxo .
>
> Please try out the candidate and vote +1/0/-1.
>
> The vote will be open for at least 72 hours. Unless objection I will try
> to close it Monday October 8, 2018 if we have sufficient votes.
>
> Prior to making this announcement I made the following preflight checks:
>
> RAT check passes (7u80)
> Unit test suite passes (7u80, 8u181)
> Opened the UI in a browser, poked around
> LTT load 1M rows with 100% verification and 20% updates (8u181)
> ITBLL 500M rows with serverKilling monkey (8u181)
>
>
> --
> Best regards,
> Andrew
>
> Words like orphans lost among the crosstalk, meaning torn from truth's
> decrepit hands
>- A23, Crosstalk
>


-- 
Best regards,
Andrew

Words like orphans lost among the crosstalk, meaning torn from truth's
decrepit hands
   - A23, Crosstalk


[jira] [Created] (HBASE-21266) Not running balancer because processing dead regionservers, but empty rs list, and state does not recover

2018-10-03 Thread Andrew Purtell (JIRA)
Andrew Purtell created HBASE-21266:
--

 Summary: Not running balancer because processing dead 
regionservers, but empty rs list, and state does not recover
 Key: HBASE-21266
 URL: https://issues.apache.org/jira/browse/HBASE-21266
 Project: HBase
  Issue Type: Bug
Affects Versions: 1.4.8
Reporter: Andrew Purtell
 Fix For: 1.5.0, 1.4.9


Found during ITBLL testing. AM in master gets into a state where manual 
attempts from the shell to run the balancer always return false and this is 
printed in the master log:

2018-10-03 19:17:14,892 DEBUG 
[RpcServer.default.FPBQ.Fifo.handler=21,queue=0,port=8100] master.HMaster: Not 
running balancer because processing dead regionserver(s): 

Note the empty list. 

This errant state did not recover without intervention by way of master 
restart, but the test environment was chaotic so needs investigation.



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Re: [VOTE] The first HBase 1.4.8 release candidate (RC0) is available

2018-10-03 Thread Andrew Purtell
A 1 billion row ITBLL job with slowDeterministic chaos policy also
completed successfully (8u181).

A second 1 billion row ITBLL job on another test cluster also completed but
I noticed HBASE-21266 while poking around. I couldn't reproduce this on the
other cluster with some manual regionserver kills. Needs investigation I'd
say but not a mark against this RC.


On Tue, Oct 2, 2018 at 5:57 PM Andrew Purtell  wrote:

> The first HBase 1.4.8 release candidate (RC0) is available for download at
> https://dist.apache.org/repos/dist/dev/hbase/hbase-1.4.8RC0/ and Maven
> artifacts are available in the temporary repository
> https://repository.apache.org/content/repositories/orgapachehbase-1233/
>
> The git tag corresponding to the candidate is '1.4.8RC0' (91118ce5f1).
>
> A detailed source and binary compatibility report for this release is
> available for your review at
> https://dist.apache.org/repos/dist/dev/hbase/hbase-1.4.8RC0/compat-check-report.html
> . There are no reported compatibility issues.
>
> A list of the 33 issues resolved in this release can be found at
> https://s.apache.org/xpxo .
>
> Please try out the candidate and vote +1/0/-1.
>
> The vote will be open for at least 72 hours. Unless objection I will try
> to close it Monday October 8, 2018 if we have sufficient votes.
>
> Prior to making this announcement I made the following preflight checks:
>
> RAT check passes (7u80)
> Unit test suite passes (7u80, 8u181)
> Opened the UI in a browser, poked around
> LTT load 1M rows with 100% verification and 20% updates (8u181)
> ITBLL 500M rows with serverKilling monkey (8u181)
>
>
> --
> Best regards,
> Andrew
>
> Words like orphans lost among the crosstalk, meaning torn from truth's
> decrepit hands
>- A23, Crosstalk
>


-- 
Best regards,
Andrew

Words like orphans lost among the crosstalk, meaning torn from truth's
decrepit hands
   - A23, Crosstalk


[jira] [Created] (HBASE-21267) Spark in java examples throws 'A master URL must be set in your configuration'

2018-10-03 Thread ramkrishna.s.vasudevan (JIRA)
ramkrishna.s.vasudevan created HBASE-21267:
--

 Summary: Spark in java examples throws 'A master URL must be set 
in your configuration'
 Key: HBASE-21267
 URL: https://issues.apache.org/jira/browse/HBASE-21267
 Project: HBase
  Issue Type: Test
Reporter: ramkrishna.s.vasudevan
Assignee: ramkrishna.s.vasudevan


Trying out some spark on java examples I found this
'A master URL must be set in your configuration'.
It comes from here
bq.SparkConf sparkConf = new 
SparkConf().setAppName("JavaHBaseBulkPutExample " + tableName);
Adding the below line solved the problem, 
bq. SparkConf sparkConf = new SparkConf().setAppName("JavaHBaseBulkPutExample " 
+ tableName).setMaster("local[2]")
But am not sure if there is any better way.



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