Check the peer address you specified in the command line. It does not seem
to match your remote cluster ZK parent node.
Jerry
On Thursday, September 8, 2016, Frank Luo <j...@merkleinc.com> wrote:
> I don't think they are pointing to different locations. Both of them
> should be /hbase-secure.
>
> However, the debugger shows that ConnectionManager#retrieveClusterId are
> called twice, the first time regards to the source cluster, which works
> fine, and
> watcher.clusterIdZNode=/hbase-secure/hbaseid, and it is correct.
>
> The second time for the remote cluster, watcher.clusterIdZNode=/hbase/hbaseid,
> which should be incorrect.
>
> What I am suspecting is ZooKeeperWatcher, method setNodeNames. It reads:
>
> private void setNodeNames(Configuration conf) {
> baseZNode = conf.get(HConstants.ZOOKEEPER_ZNODE_PARENT,
> HConstants.DEFAULT_ZOOKEEPER_ZNODE_PARENT);
>
> I am not sure the conf is corrected fetched from the remote cluster. If
> not, the default value is given, which is /hbase and incorrect.
>
> By the way, below is the root znodes for zookeepers:
>
> The source cluster:
> [hbase-secure, hiveserver2, hive, hbase-unsecure, templeton-hadoop,
> hadoop-ha, zookeeper]
>
> The target cluster:
> [hbase-secure, hive, hiveserver2, hbase-unsecure, hadoop-ha, zookeeper]
>
> -----Original Message-----
> From: Esteban Gutierrez [mailto:este...@cloudera.com <javascript:;>]
> Sent: Thursday, September 08, 2016 1:02 PM
> To: user@hbase.apache.org <javascript:;>
> Subject: Re: CopyTable fails on copying between two secured clusters
>
> Is it possible that in your destination cluster zookeeper.znode.parent
> points to a different location than /hbase ? If both clusters are under the
> same kerberos realm then there is no need to worry about
> zookeeper.security.auth_to_local.
>
>
>
> --
> Cloudera, Inc.
>
>
> On Thu, Sep 8, 2016 at 10:50 AM, Frank Luo <j...@merkleinc.com
> <javascript:;>> wrote:
>
> > Thanks Esteban for replying.
> >
> > The Kerberos realm is shared between the two clusters.
> >
> > I searched zookeeper config and couldn't find the rule, so where it
> > is set?
> >
> > Having said that, I looked at parameters passed to getData call, and
> > it doesn't look like security related.
> >
> > PS. I am using hbase 1.1.2.
> >
> > Here is the log:
> >
> > com.merkleinc.cr.hbase_maintenance.tableexport.CopyTableTest,testCopyT
> > able Connected to the target VM, address: '127.0.0.1:50669',
> > transport:
> > 'socket'
> > 0 [main] WARN org.apache.hadoop.hbase.io.util.HeapMemorySizeUtil -
> > hbase.regionserver.global.memstore.upperLimit is deprecated by
> > hbase.regionserver.global.memstore.size
> > 247 [main] WARN org.apache.hadoop.util.NativeCodeLoader - Unable to
> > load native-hadoop library for your platform... using builtin-java
> > classes where applicable
> > 1492 [main] INFO org.apache.hadoop.security.UserGroupInformation -
> > Login successful for user tidsvc_exphbase@PCLC0.MERKLE.LOCAL using
> > keytab file \Users\jluo\tidsvc_exphbase.keytab
> > 11462 [main] WARN org.apache.hadoop.hbase.io.util.HeapMemorySizeUtil
> > - hbase.regionserver.global.memstore.upperLimit is deprecated by
> > hbase.regionserver.global.memstore.size
> > 164493 [main] WARN org.apache.hadoop.hbase.io.util.HeapMemorySizeUtil
> > - hbase.regionserver.global.memstore.upperLimit is deprecated by
> > hbase.regionserver.global.memstore.size
> > 167720 [main] WARN org.apache.hadoop.hbase.io.util.HeapMemorySizeUtil
> > - hbase.regionserver.global.memstore.upperLimit is deprecated by
> > hbase.regionserver.global.memstore.size
> > 172108 [main] WARN
> > org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory
> > - The short-circuit local reads feature cannot be used because UNIX
> > Domain sockets are not available on Windows.
> > 224735 [main] WARN org.apache.hadoop.hbase.io.util.HeapMemorySizeUtil
> > - hbase.regionserver.global.memstore.upperLimit is deprecated by
> > hbase.regionserver.global.memstore.size
> > 225165 [main] INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper
> > - Process identifier=hconnection-0x4dd5d6bb connecting to ZooKeeper
> > ensemble=hqhd02nm01.pclc0.merkle.local:2181,hqhd02nm02.
> > pclc0.merkle.local:2181,hqhd02ed01.pclc0.merkle.local:2181
> > 225190 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:zookeeper.version=3.4.6-1569965, built on 02/20/2014 09:09
> > GMT
> > 225191 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:
> > host.name=JLUOWIN7.pclc0.merkle.local
> > 225191 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:java.version=1.7.0_51
> > 225191 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:java.vendor=Oracle Corporation
> > 225191 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:java.home=C:\work\jdk1.7.0_51\jre
> > 225193 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:java.io.tmpdir=C:\Users\jluo\AppData\Local\Temp\
> > 225193 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:java.compiler=<NA>
> > 225193 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:
> > os.name=Windows 7
> > 225193 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:os.arch=amd64
> > 225194 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:os.version=6.1
> > 225194 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:
> > user.name=jluo
> > 225194 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:user.home=C:\Users\jluo
> > 225194 [main] INFO org.apache.zookeeper.ZooKeeper - Client
> > environment:user.dir=C:\work\project\c2\trunk\misc\hbase_maintenance
> > 225197 [main] INFO org.apache.zookeeper.ZooKeeper - Initiating
> > client connection, connectString=hqhd02nm01.pclc0.merkle.local:2181,
> > hqhd02nm02.pclc0.merkle.local:2181,hqhd02ed01.pclc0.merkle.local:2181
> > sessionTimeout=120000 watcher=hconnection-0x4dd5d6bb0x0,
> > quorum=hqhd02nm01.pclc0.merkle.local:2181,hqhd02nm02.
> > pclc0.merkle.local:2181,hqhd02ed01.pclc0.merkle.local:2181,
> > baseZNode=/hbase-secure
> > 225442 [main-SendThread(hqhd02nm02.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Opening socket connection to server
> > hqhd02nm02.pclc0.merkle.local/10.129.8.14:2181. Will not attempt to
> > authenticate using SASL (unknown error)
> > 225490 [main-SendThread(hqhd02nm02.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Socket connection established to
> > hqhd02nm02.pclc0.merkle.local/10.129.8.14:2181, initiating session
> > 225544 [main-SendThread(hqhd02nm02.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Session establishment complete on
> > server hqhd02nm02.pclc0.merkle.local/10.129.8.14:2181, sessionid =
> > 0x357067c5442410e, negotiated timeout = 120000
> > 231758 [main] INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper
> > - Process identifier=TokenUtil-getAuthToken connecting to ZooKeeper
> > ensemble=hqhd02nm01.pclc0.merkle.local:2181,hqhd02nm02.
> > pclc0.merkle.local:2181,hqhd02ed01.pclc0.merkle.local:2181
> > 231758 [main] INFO org.apache.zookeeper.ZooKeeper - Initiating
> > client connection, connectString=hqhd02nm01.pclc0.merkle.local:2181,
> > hqhd02nm02.pclc0.merkle.local:2181,hqhd02ed01.pclc0.merkle.local:2181
> > sessionTimeout=120000 watcher=TokenUtil-getAuthToken0x0,
> > quorum=hqhd02nm01.pclc0.merkle.local:2181,hqhd02nm02.
> > pclc0.merkle.local:2181,hqhd02ed01.pclc0.merkle.local:2181,
> > baseZNode=/hbase-secure
> > 231876 [main-SendThread(hqhd02nm02.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Opening socket connection to server
> > hqhd02nm02.pclc0.merkle.local/10.129.8.14:2181. Will not attempt to
> > authenticate using SASL (unknown error)
> > 253405 [main-SendThread(hqhd02nm02.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Socket connection established to
> > hqhd02nm02.pclc0.merkle.local/10.129.8.14:2181, initiating session
> > 257914 [main-SendThread(hqhd02nm02.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Session establishment complete on
> > server hqhd02nm02.pclc0.merkle.local/10.129.8.14:2181, sessionid =
> > 0x357067c54424116, negotiated timeout = 120000
> > 374820 [main-SendThread(hqhd02nm02.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Client session timed out, have not
> > heard from server in 96993ms for sessionid 0x357067c5442410e, closing
> > socket connection and attempting reconnect
> > 374923 [main] INFO org.apache.zookeeper.ZooKeeper - Session:
> > 0x357067c54424116 closed
> > 374924 [main-EventThread] INFO org.apache.zookeeper.ClientCnxn -
> > EventThread shut down
> > 375053 [main-SendThread(hqhd02ed01.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Opening socket connection to server
> > hqhd02ed01.pclc0.merkle.local/10.129.8.11:2181. Will not attempt to
> > authenticate using SASL (unknown error)
> > 375095 [main-SendThread(hqhd02ed01.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Socket connection established to
> > hqhd02ed01.pclc0.merkle.local/10.129.8.11:2181, initiating session
> > 375136 [main-SendThread(hqhd02ed01.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Session establishment complete on
> > server hqhd02ed01.pclc0.merkle.local/10.129.8.11:2181, sessionid =
> > 0x357067c5442410e, negotiated timeout = 120000
> > 376538 [main] INFO
> > org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementa
> > tion
> > - Closing zookeeper sessionid=0x357067c5442410e
> > 376581 [main] INFO org.apache.zookeeper.ZooKeeper - Session:
> > 0x357067c5442410e closed
> > 376581 [main-EventThread] INFO org.apache.zookeeper.ClientCnxn -
> > EventThread shut down
> > 376746 [main] WARN org.apache.hadoop.hbase.io.util.HeapMemorySizeUtil
> > - hbase.regionserver.global.memstore.upperLimit is deprecated by
> > hbase.regionserver.global.memstore.size
> > 376749 [main] INFO org.apache.hadoop.conf.Configuration.deprecation
> > - io.bytes.per.checksum is deprecated. Instead, use
> > dfs.bytes-per-checksum
> > 376839 [main] WARN org.apache.hadoop.hbase.io.util.HeapMemorySizeUtil
> > - hbase.regionserver.global.memstore.upperLimit is deprecated by
> > hbase.regionserver.global.memstore.size
> > 376841 [main] INFO org.apache.hadoop.conf.Configuration.deprecation
> > - io.bytes.per.checksum is deprecated. Instead, use
> > dfs.bytes-per-checksum
> > 376843 [main] INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper
> > - Process identifier=hconnection-0x613cf3c5 connecting to ZooKeeper
> > ensemble=hqetghdpadm91.pclc0.merkle.local:2181,
> hqetghdpadm90.pclc0.merkle.
> > local:2181
> > 376843 [main] INFO org.apache.zookeeper.ZooKeeper - Initiating
> > client connection,
> > connectString=hqetghdpadm91.pclc0.merkle.local:2181,
> > hqetghdpadm90.pclc0.merkle.local:2181 sessionTimeout=120000
> > watcher=hconnection-0x613cf3c50x0, quorum=hqetghdpadm91.pclc0.
> > merkle.local:2181,hqetghdpadm90.pclc0.merkle.local:2181,
> > baseZNode=/hbase
> > 377008 [main-SendThread(hqetghdpadm91.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Opening socket connection to server
> > hqetghdpadm91.pclc0.merkle.local/10.129.40.11:2181. Will not attempt
> > to authenticate using SASL (unknown error)
> > 377057 [main-SendThread(hqetghdpadm91.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Socket connection established to
> > hqetghdpadm91.pclc0.merkle.local/10.129.40.11:2181, initiating session
> > 377098 [main-SendThread(hqetghdpadm91.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Session establishment complete on
> > server hqetghdpadm91.pclc0.merkle.local/10.129.40.11:2181, sessionid =
> > 0x2565c552d296982, negotiated timeout = 40000
> > 377140 [main] INFO org.apache.hadoop.hbase.client.ZooKeeperRegistry
> > - ClusterId read in ZooKeeper is null
> > 377141 [main] INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper
> > - Process identifier=TokenUtil-getAuthToken connecting to ZooKeeper
> > ensemble=hqetghdpadm91.pclc0.merkle.local:2181,
> hqetghdpadm90.pclc0.merkle.
> > local:2181
> > 377141 [main] INFO org.apache.zookeeper.ZooKeeper - Initiating
> > client connection,
> > connectString=hqetghdpadm91.pclc0.merkle.local:2181,
> > hqetghdpadm90.pclc0.merkle.local:2181 sessionTimeout=120000
> > watcher=TokenUtil-getAuthToken0x0, quorum=hqetghdpadm91.pclc0.
> > merkle.local:2181,hqetghdpadm90.pclc0.merkle.local:2181,
> > baseZNode=/hbase
> > 377189 [main-SendThread(hqetghdpadm90.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Opening socket connection to server
> > hqetghdpadm90.pclc0.merkle.local/10.129.40.10:2181. Will not attempt
> > to authenticate using SASL (unknown error)
> > 399494 [main-SendThread(hqetghdpadm90.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Socket connection established to
> > hqetghdpadm90.pclc0.merkle.local/10.129.40.10:2181, initiating session
> > 399541 [main-SendThread(hqetghdpadm90.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Session establishment complete on
> > server hqetghdpadm90.pclc0.merkle.local/10.129.40.10:2181, sessionid =
> > 0x1565c552cfd6b03, negotiated timeout = 40000
> > 1036441 [main-SendThread(hqetghdpadm90.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Client session timed out, have not
> > heard from server in 636835ms for sessionid 0x1565c552cfd6b03, closing
> > socket connection and attempting reconnect
> > 1036441 [main-SendThread(hqetghdpadm91.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Client session timed out, have not
> > heard from server in 636900ms for sessionid 0x2565c552d296982, closing
> > socket connection and attempting reconnect
> > 1236709 [main-SendThread(hqetghdpadm90.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Opening socket connection to server
> > hqetghdpadm90.pclc0.merkle.local/10.129.40.10:2181. Will not attempt
> > to authenticate using SASL (unknown error)
> > 1236761 [main-SendThread(hqetghdpadm90.pclc0.merkle.local:2181)] INFO
> > org.apache.zookeeper.ClientCnxn - Socket connection established to
> > hqetghdpadm90.pclc0.merkle.local/10.129.40.10:2181, initiating session
> > 1236762 [main] INFO org.apache.zookeeper.ZooKeeper - Session:
> > 0x1565c552cfd6b03 closed
> > 1236762 [main] INFO
> > org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementa
> > tion
> > - Closing zookeeper sessionid=0x2565c552d296982
> > 1236762 [main-EventThread] INFO org.apache.zookeeper.ClientCnxn -
> > EventThread shut down
> > 1236908 [main] INFO org.apache.zookeeper.ZooKeeper - Session:
> > 0x2565c552d296982 closed
> > 1236909 [main-EventThread] INFO org.apache.zookeeper.ClientCnxn -
> > EventThread shut down
> >
> > java.io.IOException: Failed to get cluster ID
> >
> > at org.apache.hadoop.hbase.security.token.TokenUtil.
> > getAuthToken(TokenUtil.java:365)
> > at org.apache.hadoop.hbase.security.token.TokenUtil.
> > addTokenForJob(TokenUtil.java:327)
> > at org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil.
> > initCredentials(TableMapReduceUtil.java:451)
> > at org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil.
> > initTableReducerJob(TableMapReduceUtil.java:658)
> > at org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil.
> > initTableReducerJob(TableMapReduceUtil.java:591)
> > at org.apache.hadoop.hbase.mapreduce.CopyTable.
> > createSubmittableJob(CopyTable.java:168)
> > at org.apache.hadoop.hbase.mapreduce.CopyTable.run(
> > CopyTable.java:348)
> > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> > at org.apache.hadoop.hbase.mapreduce.CopyTable.main(
> > CopyTable.java:341)
> > at com.merkleinc.cr.hbase_maintenance.tableexport.
> > CopyTableTest.export(CopyTableTest.java:44)
> > at com.merkleinc.cr.hbase_maintenance.tableexport.
> > CopyTableTest.testCopyTable(CopyTableTest.java:25)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at sun.reflect.NativeMethodAccessorImpl.invoke(
> > NativeMethodAccessorImpl.java:57)
> > at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> > DelegatingMethodAccessorImpl.java:43)
> > at java.lang.reflect.Method.invoke(Method.java:606)
> > at
> > org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(
> > FrameworkMethod.java:50)
> > at org.junit.internal.runners.model.ReflectiveCallable.run(
> > ReflectiveCallable.java:12)
> > at org.junit.runners.model.FrameworkMethod.invokeExplosively(
> > FrameworkMethod.java:47)
> > at org.junit.internal.runners.statements.InvokeMethod.
> > evaluate(InvokeMethod.java:17)
> > at com.intellij.junit4.JUnit4TestRunnerUtil$
> > IgnoreIgnoredTestJUnit4ClassRunner.runChild(
> JUnit4TestRunnerUtil.java:349)
> > at org.junit.runners.BlockJUnit4ClassRunner.runChild(
> > BlockJUnit4ClassRunner.java:57)
> > at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> > at org.junit.runners.ParentRunner$1.schedule(
> ParentRunner.java:71)
> > at org.junit.runners.ParentRunner.runChildren(
> > ParentRunner.java:288)
> > at org.junit.runners.ParentRunner.access$000(
> ParentRunner.java:58)
> > at org.junit.runners.ParentRunner$2.evaluate(
> > ParentRunner.java:268)
> > at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> > at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> > at
> > com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(
> > JUnit4IdeaTestRunner.java:69)
> > at com.intellij.rt.execution.junit.JUnitStarter.
> > prepareStreamsAndStart(JUnitStarter.java:234)
> > at com.intellij.rt.execution.junit.JUnitStarter.main(
> > JUnitStarter.java:74)
> >
> > Disconnected from the target VM, address: '127.0.0.1:50669', transport:
> > 'socket'
> >
> > Process finished with exit code -1
> >
> > -----Original Message-----
> > From: Esteban Gutierrez [mailto:este...@cloudera.com <javascript:;>]
> > Sent: Thursday, September 08, 2016 12:37 PM
> > To: user@hbase.apache.org <javascript:;>
> > Subject: Re: CopyTable fails on copying between two secured clusters
> >
> > Frank,
> >
> > Do you have a cross realm setup? if yes, do you have ZK to use the
> > proper rules via the -Dzookeeper.security.auth_to_local flag? If you
> > could share additional logs that would be helpful for us.
> >
> > Thanks!
> > esteban.
> >
> > --
> > Cloudera, Inc.
> >
> >
> > On Thu, Sep 8, 2016 at 10:32 AM, Frank Luo <j...@merkleinc.com
> <javascript:;>> wrote:
> >
> > > I couldn’t manage to get the CopyTable to work between two secured
> > > clusters and hope someone can shed some light.
> > >
> > > I have a table created on both clusters, and I am running the
> > > CopyTable command from the source cluster.
> > >
> > > The parameters are the following:
> > > "--peer.adr=zookeeper1, zookeeper2:2181:/hbase",
> > > "--new.name=TargetTable", "SourceTable"
> > >
> > > I have ensured that the user has all permissions on both tables.
> > > When I run it, I got:
> > >
> > > =====================
> > > java.io.IOException: Failed to get cluster ID
> > >
> > > at org.apache.hadoop.hbase.security.token.TokenUtil.
> > > getAuthToken(TokenUtil.java:365)
> > > at org.apache.hadoop.hbase.security.token.TokenUtil.
> > > addTokenForJob(TokenUtil.java:327)
> > > =====================
> > >
> > > Debugging into it, I found that it is trying to get the clusterId
> > > from my target cluster using address of zookeeper1/2, and the code
> > > below returns
> > > null:
> > >
> > >
> > > =====================
> > >
> > > ZKUtil.getData(watcher, watcher.clusterIdZNode);
> > > =====================
> > >
> > > Any hints please?
> > >
> > >
> > >
> > > Access the Q2 2016 Digital Marketing Report for a fresh set of
> > > trends and benchmarks in digital
> > > marketing<http://www2.merkleinc.com/l/47252/2016-07-
> > > 26/47gt7c>
> > >
> > > Download our latest report titled “The Case for Change: Exploring
> > > the Myths of Customer-Centric Transformation”
> > > <http://www2.merkleinc.com/l/ 47252/2016-08-04/4b9p7c>
> > >
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> > Access the Q2 2016 Digital Marketing Report for a fresh set of trends
> > and benchmarks in digital
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> > 26/47gt7c>
> >
> > Download our latest report titled “The Case for Change: Exploring the
> > Myths of Customer-Centric Transformation”
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> Access the Q2 2016 Digital Marketing Report for a fresh set of trends and
> benchmarks in digital marketing<http://www2.merkleinc.com/l/47252/2016-07-
> 26/47gt7c>
>
> Download our latest report titled “The Case for Change: Exploring the
> Myths of Customer-Centric Transformation” <http://www2.merkleinc.com/l/
> 47252/2016-08-04/4b9p7c>
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> accept liability for any loss or damage caused by software viruses. The
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