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From Amit Sela <am...@infolinks.com>
Subject Re: HBase 0.94 security configurations
Date Sun, 03 Jun 2012 07:28:48 GMT
Anyone has a working basic-test for hbase 0.94.0 ? I would like to have a
reference for setups...

Thanks.

On Sat, Jun 2, 2012 at 9:42 PM, Andrew Purtell <andrew.purtell@gmail.com>wrote:

> It's highly likely you are not starting up zookeeper at all then. The
> security warning is a red herring. I filed a zookeeper issue to change the
> log level from warn to info so it doesn't send folks like yourself down the
> wrong path.
>
>  I'd advise cloning one of the working 0.94 tests that spins up a full
> cluster and go from there.
>
>    - Andy
>
> On Jun 2, 2012, at 6:26 PM, Amit Sela <amits@infolinks.com> wrote:
>
> > I don't know about a local zookeeper running.
> > I'm trying to run a test that extends HBaseTestingUtils.
> > It worked fine with the old versions when it extended
> HBaseClusterTestCase.
> > Since it is deprecated (also same for HBaseTestCase) I adjusted the test
> a
> > little bit (things like cong, fs, dfs etc.. became private and use
> getters
> > now) - maybe what i'm missing is here ?
> >
> > On Sat, Jun 2, 2012 at 2:43 PM, Andrew Purtell <andrew.purtell@gmail.com
> >wrote:
> >
> >> Do you have a local zookeeper running? Telnet localhost 2181 connect to
> >> anything?
> >>
> >> Obviously we run 0.94 with no security setup with no problem. Hence
> >> looking for basic setup problems.
> >>
> >>   - Andy
> >>
> >> On Jun 2, 2012, at 1:20 PM, Amit Sela <amits@infolinks.com> wrote:
> >>
> >>> I still get the same error.
> >>>
> >>> This is the contents of the configuration as it is set right before
> >>> calling "new
> >>> HBaseAdmin(getConfiguration())":
> >>>
> >>> key :hbase.auth.token.max.lifetime
> >>> value :604800000
> >>> key :hbase.thrift.maxQueuedRequests
> >>> value :1000
> >>> key :io.seqfile.compress.blocksize
> >>> value :1000000
> >>> key :hbase.hstore.compactionThreshold
> >>> value :3
> >>> key :hbase.coprocessor.abortonerror
> >>> value :false
> >>> key :hadoop.log.dir
> >>> value :/tmp
> >>> key :hbase.master.port
> >>> value :60000
> >>> key :webinterface.private.actions
> >>> value :false
> >>> key :dfs.support.append
> >>> value :true
> >>> key :hbase.rpc.engine
> >>> value :org.apache.hadoop.hbase.ipc.WritableRpcEngine
> >>> key :hbase.auth.key.update.interval
> >>> value :86400000
> >>> key :fs.s3.impl
> >>> value :org.apache.hadoop.fs.s3.S3FileSystem
> >>> key :hbase.zookeeper.leaderport
> >>> value :3888
> >>> key :hadoop.native.lib
> >>> value :true
> >>> key :fs.checkpoint.edits.dir
> >>> value :${fs.checkpoint.dir}
> >>> key :ipc.server.listen.queue.size
> >>> value :128
> >>> key :hbase.regionserver.hlog.reader.impl
> >>> value :org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader
> >>> key :hbase.regionserver.info.bindAddress
> >>> value :0.0.0.0
> >>> key :hadoop.security.authorization
> >>> value :false
> >>> key :hbase.mapreduce.hfileoutputformat.blocksize
> >>> value :65536
> >>> key :hbase.regionserver.hlog.writer.impl
> >>> value :org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogWriter
> >>> key :hbase.regionserver.logroll.errors.tolerated
> >>> value :2
> >>> key :hbase.regionserver.nbreservationblocks
> >>> value :4
> >>> key :hbase.tmp.dir
> >>> value :/tmp/hbase-${user.name}
> >>> key :hbase.zookeeper.dns.nameserver
> >>> value :default
> >>> key :hbase.hregion.memstore.mslab.enabled
> >>> value :true
> >>> key :io.file.buffer.size
> >>> value :4096
> >>> key :hbase.zookeeper.property.dataDir
> >>> value :${hbase.tmp.dir}/zookeeper
> >>> key :hbase.data.umask.enable
> >>> value :false
> >>> key :hadoop.logfile.size
> >>> value :10000000
> >>> key :hbase.client.retries.number
> >>> value :10
> >>> key :fs.webhdfs.impl
> >>> value :org.apache.hadoop.hdfs.web.WebHdfsFileSystem
> >>> key :ipc.client.kill.max
> >>> value :10
> >>> key :hbase.regionserver.lease.period
> >>> value :60000
> >>> key :hbase.defaults.for.version.skip
> >>> value :false
> >>> key :hbase.zookeeper.property.clientPort
> >>> value :2181
> >>> key :zookeeper.znode.acl.parent
> >>> value :acl
> >>> key :hbase.regionserver.dns.nameserver
> >>> value :default
> >>> key :ipc.server.tcpnodelay
> >>> value :false
> >>> key :hbase.balancer.period
> >>> value :300000
> >>> key :hbase.rest.readonly
> >>> value :false
> >>> key :hbase.master.info.bindAddress
> >>> value :0.0.0.0
> >>> key :hbase.regionserver.global.memstore.upperLimit
> >>> value :0.4
> >>> key :hadoop.logfile.count
> >>> value :10
> >>> key :hbase.hregion.majorcompaction
> >>> value :86400000
> >>> key :hbase.client.keyvalue.maxsize
> >>> value :10485760
> >>> key :hadoop.security.uid.cache.secs
> >>> value :14400
> >>> key :fs.ftp.impl
> >>> value :org.apache.hadoop.fs.ftp.FTPFileSystem
> >>> key :hbase.cluster.distributed
> >>> value :false
> >>> key :hbase.client.pause
> >>> value :1000
> >>> key :hbase.hregion.preclose.flush.size
> >>> value :5242880
> >>> key :fs.file.impl
> >>> value :org.apache.hadoop.fs.LocalFileSystem
> >>> key :hbase.regionserver.global.memstore.lowerLimit
> >>> value :0.35
> >>> key :hbase.regionserver.handler.count
> >>> value :10
> >>> key :ipc.client.connection.maxidletime
> >>> value :10000
> >>> key :hbase.online.schema.update.enable
> >>> value :false
> >>> key :hbase.hash.type
> >>> value :murmur
> >>> key :hbase.hregion.max.filesize
> >>> value :10737418240
> >>> key :hbase.hregion.memstore.block.multiplier
> >>> value :2
> >>> key :hadoop.policy.file
> >>> value :hbase-policy.xml
> >>> key :hbase.hstore.blockingWaitTime
> >>> value :90000
> >>> key :hbase.zookeeper.quorum
> >>> value :localhost
> >>> key :hbase.hregion.memstore.flush.size
> >>> value :134217728
> >>> key :hbase.zookeeper.property.syncLimit
> >>> value :5
> >>> key :fs.checkpoint.size
> >>> value :67108864
> >>> key :io.skip.checksum.errors
> >>> value :false
> >>> key :fs.s3n.impl
> >>> value :org.apache.hadoop.fs.s3native.NativeS3FileSystem
> >>> key :hbase.zookeeper.dns.interface
> >>> value :default
> >>> key :fs.s3.maxRetries
> >>> value :4
> >>> key :hbase.regionserver.logroll.period
> >>> value :3600000
> >>> key :hbase.metrics.showTableName
> >>> value :true
> >>> key :hbase.offheapcache.percentage
> >>> value :0
> >>> key :hbase.client.scanner.caching
> >>> value :1
> >>> key :hfile.format.version
> >>> value :2
> >>> key :hbase.regionserver.port
> >>> value :60020
> >>> key :fs.default.name
> >>> value :file:///
> >>> key :ipc.client.idlethreshold
> >>> value :4000
> >>> key :fs.hsftp.impl
> >>> value :org.apache.hadoop.hdfs.HsftpFileSystem
> >>> key :hadoop.tmp.dir
> >>> value :/tmp/hadoop-${user.name}
> >>> key :fs.checkpoint.dir
> >>> value :${hadoop.tmp.dir}/dfs/namesecondary
> >>> key :fs.s3.block.size
> >>> value :67108864
> >>> key :hbase.rs.cacheblocksonwrite
> >>> value :false
> >>> key :hbase.rootdir
> >>> value :file:///tmp/hbase-${user.name}/hbase
> >>> key :hbase.regionserver.class
> >>> value :org.apache.hadoop.hbase.ipc.HRegionInterface
> >>> key :hbase.regionserver.info.port
> >>> value :60030
> >>> key :io.serializations
> >>> value :org.apache.hadoop.io.serializer.WritableSerialization
> >>> key :hbase.regionserver.msginterval
> >>> value :3000
> >>> key :hbase.regionserver.dns.interface
> >>> value :default
> >>> key :hadoop.util.hash.type
> >>> value :murmur
> >>> key :io.seqfile.lazydecompress
> >>> value :true
> >>> key :hbase.rest.port
> >>> value :8080
> >>> key :hbase.defaults.for.version
> >>> value :0.94.0
> >>> key :hbase.zookeeper.peerport
> >>> value :2888
> >>> key :zookeeper.znode.rootserver
> >>> value :root-region-server
> >>> key :io.mapfile.bloom.size
> >>> value :1048576
> >>> key :io.storefile.bloom.block.size
> >>> value :131072
> >>> key :fs.s3.buffer.dir
> >>> value :${hadoop.tmp.dir}/s3
> >>> key :hbase.zookeeper.property.maxClientCnxns
> >>> value :300
> >>> key :hbase.master.dns.interface
> >>> value :default
> >>> key :hbase.server.versionfile.writeattempts
> >>> value :3
> >>> key :hbase.thrift.minWorkerThreads
> >>> value :16
> >>> key :io.compression.codecs
> >>> value
> >>>
> >>
> :org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.BZip2Codec,org.apache.hadoop.io.compress.SnappyCodec
> >>> key :topology.script.number.args
> >>> value :100
> >>> key :fs.har.impl
> >>> value :org.apache.hadoop.fs.HarFileSystem
> >>> key :io.seqfile.sorter.recordlimit
> >>> value :1000000
> >>> key :zookeeper.session.timeout
> >>> value :1800000
> >>> key :fs.trash.interval
> >>> value :0
> >>> key :local.cache.size
> >>> value :10737418240
> >>> key :hadoop.security.authentication
> >>> value :simple
> >>> key :hadoop.security.group.mapping
> >>> value :org.apache.hadoop.security.ShellBasedUnixGroupsMapping
> >>> key :hbase.regions.slop
> >>> value :0.2
> >>> key :hadoop.security.token.service.use_ip
> >>> value :true
> >>> key :ipc.client.connect.max.retries
> >>> value :10
> >>> key :fs.ramfs.impl
> >>> value :org.apache.hadoop.fs.InMemoryFileSystem
> >>> key :hadoop.rpc.socket.factory.class.default
> >>> value :org.apache.hadoop.net.StandardSocketFactory
> >>> key :fs.kfs.impl
> >>> value :org.apache.hadoop.fs.kfs.KosmosFileSystem
> >>> key :hfile.block.index.cacheonwrite
> >>> value :false
> >>> key :hbase.master.dns.nameserver
> >>> value :default
> >>> key :hbase.bulkload.retries.number
> >>> value :0
> >>> key :hbase.hstore.compaction.max
> >>> value :10
> >>> key :fs.checkpoint.period
> >>> value :3600
> >>> key :topology.node.switch.mapping.impl
> >>> value :org.apache.hadoop.net.ScriptBasedMapping
> >>> key :zookeeper.znode.parent
> >>> value :/hbase
> >>> key :mapred.output.dir
> >>> value :/tmp/hadoop-amits
> >>> key :hbase.server.thread.wakefrequency
> >>> value :10000
> >>> key :hbase.master.info.port
> >>> value :60010
> >>> key :hfile.index.block.max.size
> >>> value :131072
> >>> key :hbase.regionserver.optionallogflushinterval
> >>> value :1000
> >>> key :fs.hdfs.impl
> >>> value :org.apache.hadoop.hdfs.DistributedFileSystem
> >>> key :hbase.thrift.maxWorkerThreads
> >>> value :1000
> >>> key :io.storefile.bloom.cacheonwrite
> >>> value :false
> >>> key :hbase.hstore.blockingStoreFiles
> >>> value :7
> >>> key :hfile.block.cache.size
> >>> value :0.25
> >>> key :io.mapfile.bloom.error.rate
> >>> value :0.005
> >>> key :io.bytes.per.checksum
> >>> value :512
> >>> key :hbase.zookeeper.property.initLimit
> >>> value :10
> >>> key :fs.har.impl.disable.cache
> >>> value :true
> >>> key :ipc.client.tcpnodelay
> >>> value :false
> >>> key :fs.hftp.impl
> >>> value :org.apache.hadoop.hdfs.HftpFileSystem
> >>> key :hbase.data.umask
> >>> value :000
> >>> key :hbase.master.logcleaner.plugins
> >>> value :org.apache.hadoop.hbase.master.TimeToLiveLogCleaner
> >>> key :hbase.master.logcleaner.ttl
> >>> value :600000
> >>> key :hbase.regionserver.regionSplitLimit
> >>> value :2147483647
> >>> key :fs.s3.sleepTimeSeconds
> >>> value :10
> >>> key :hbase.client.write.buffer
> >>> value :2097152
> >>> key :hbase.regionserver.info.port.auto
> >>> value :false
> >>>
> >>> Am I missing something ? because it looks OK to me.
> >>>
> >>> On Thu, May 31, 2012 at 11:05 PM, Andrew Purtell
> >>> <andrew.purtell@gmail.com>wrote:
> >>>
> >>>> Great, now remove any security related Zookeeper properties that you
> >> added
> >>>> in hbase-site.xml. Only keep hbase.zookeeper.quorum.
> >>>>
> >>>> On May 31, 2012, at 9:52 PM, Amit Sela <amits@infolinks.com> wrote:
> >>>>
> >>>>> I did some debug and the code does calls HBaseConfiguration.create()
> -
> >>>>> since my test extends HBaseTestingUtility.
> >>>>> and conf.properties.get("hbase.zookeeper.quorum") returns
> "localhost".
> >>>>>
> >>>>> Is that properly set, or should it be something else ? keep in my
> it's
> >> a
> >>>>> test running on my laptop, so it seems OK to me.
> >>>>>
> >>>>>
> >>>>> On Thu, May 31, 2012 at 10:01 PM, Andrew Purtell
> >>>>> <andrew.purtell@gmail.com>wrote:
> >>>>>
> >>>>>> I mean of course server null means that hbase.zookeeper.quorum
> config
> >>>>>> property is unset. And the two most common reasons are:
> >>>>>>
> >>>>>> 1. Not defined in the site file
> >>>>>>
> >>>>>> 2. Configuration object not created with HBaseConfiguration.create()
> >>>>>>
> >>>>>> I hope this is clearer.
> >>>>>>
> >>>>>> On May 31, 2012, at 8:59 PM, Andrew Purtell <
> andrew.purtell@gmail.com
> >>>
> >>>>>> wrote:
> >>>>>>
> >>>>>>> Server null usually means you haven't configured
> >> hbase.zookeeper.quorum
> >>>>>> in your client's hbase-site.xml file. And that is usually because
> you
> >>>> are
> >>>>>> using a Configuration not created by HBaseConfiguration.create()
> >>>>>>>
> >>>>>>> If so the JAAS warning is a red herring.
> >>>>>>>
> >>>>>>> On May 31, 2012, at 8:52 PM, Amit Sela <amits@infolinks.com>
> wrote:
> >>>>>>>
> >>>>>>>> I'm trying to run a test for HBase (some think we wrote,
internal)
> >> on
> >>>> my
> >>>>>>>> laptop - runs perfectly with the old versions of Hadoop,
HBase and
> >>>>>>>> ZooKeeeper.
> >>>>>>>>
> >>>>>>>> After deploying the new versions and re-compiling our
code, I run
> >> the
> >>>>>> test.
> >>>>>>>>
> >>>>>>>> When I try to instantiate  "new HBaseAdmin(getConfiguration())"
-
> >>>> where
> >>>>>> the
> >>>>>>>> configuration is from HBaseTestingUtility, I get the
following on
> >> the
> >>>>>>>> console output:
> >>>>>>>>
> >>>>>>>> 2012-05-31 21:36:51.728
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.client.ZooKeeperSaslClient -
> >>>>>>>> SecurityException: java.lang.SecurityException: Unable
to locate a
> >>>> login
> >>>>>>>> configuration occurred when trying to find JAAS configuration.
> >>>>>>>> 2012-05-31 21:36:51.741
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.ClientCnxn                    
         -
> >> Session
> >>>>>> 0x0
> >>>>>>>> for server null, unexpected error, closing socket connection
and
> >>>>>> attempting
> >>>>>>>> reconnect
> >>>>>>>> java.net.ConnectException: Connection refused
> >>>>>>>> at sun.nio.ch.SocketChannelImpl.checkConnect(Native
Method)
> >>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
> >>>>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>>>
> >>>>>>
> >>>>
> >>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:286)
> >>>>>>>> ~[zookeeper-3.4.3.jar:3.4.3-1240972]
> >>>>>>>> at
> >>>> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
> >>>>>>>> ~[zookeeper-3.4.3.jar:3.4.3-1240972]
> >>>>>>>> 2012-05-31 21:36:51.852 [main]      WARN
> >>>>>>>> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper
      -
> >>>> Possibly
> >>>>>>>> transient ZooKeeper exception:
> >>>>>>>> org.apache.zookeeper.KeeperException$ConnectionLossException:
> >>>>>>>> KeeperErrorCode = ConnectionLoss for /hbase/master
> >>>>>>>> 2012-05-31 21:36:52.847
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.client.ZooKeeperSaslClient -
> >>>>>>>> SecurityException: java.lang.SecurityException: Unable
to locate a
> >>>> login
> >>>>>>>> configuration occurred when trying to find JAAS configuration.
> >>>>>>>> 2012-05-31 21:36:52.848
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.ClientCnxn                    
         -
> >> Session
> >>>>>> 0x0
> >>>>>>>> for server null, unexpected error, closing socket connection
and
> >>>>>> attempting
> >>>>>>>> reconnect
> >>>>>>>> java.net.ConnectException: Connection refused
> >>>>>>>> at sun.nio.ch.SocketChannelImpl.checkConnect(Native
Method)
> >>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
> >>>>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>>>
> >>>>>>
> >>>>
> >>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:286)
> >>>>>>>> ~[zookeeper-3.4.3.jar:3.4.3-1240972]
> >>>>>>>> at
> >>>> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
> >>>>>>>> ~[zookeeper-3.4.3.jar:3.4.3-1240972]
> >>>>>>>> 2012-05-31 21:36:53.949
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.client.ZooKeeperSaslClient -
> >>>>>>>> SecurityException: java.lang.SecurityException: Unable
to locate a
> >>>> login
> >>>>>>>> configuration occurred when trying to find JAAS configuration.
> >>>>>>>> 2012-05-31 21:36:53.951
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.ClientCnxn                    
         -
> >> Session
> >>>>>> 0x0
> >>>>>>>> for server null, unexpected error, closing socket connection
and
> >>>>>> attempting
> >>>>>>>> reconnect
> >>>>>>>> java.net.ConnectException: Connection refused
> >>>>>>>> at sun.nio.ch.SocketChannelImpl.checkConnect(Native
Method)
> >>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
> >>>>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>>>
> >>>>>>
> >>>>
> >>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:286)
> >>>>>>>> ~[zookeeper-3.4.3.jar:3.4.3-1240972]
> >>>>>>>> at
> >>>> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
> >>>>>>>> ~[zookeeper-3.4.3.jar:3.4.3-1240972]
> >>>>>>>> 2012-05-31 21:36:54.052 [main]      WARN
> >>>>>>>> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper
      -
> >>>> Possibly
> >>>>>>>> transient ZooKeeper exception:
> >>>>>>>> org.apache.zookeeper.KeeperException$ConnectionLossException:
> >>>>>>>> KeeperErrorCode = ConnectionLoss for /hbase/master
> >>>>>>>> 2012-05-31 21:36:55.052
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.client.ZooKeeperSaslClient -
> >>>>>>>> SecurityException: java.lang.SecurityException: Unable
to locate a
> >>>> login
> >>>>>>>> configuration occurred when trying to find JAAS configuration.
> >>>>>>>> 2012-05-31 21:36:55.053
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.ClientCnxn                    
         -
> >> Session
> >>>>>> 0x0
> >>>>>>>> for server null, unexpected error, closing socket connection
and
> >>>>>> attempting
> >>>>>>>> reconnect
> >>>>>>>> java.net.ConnectException: Connection refused
> >>>>>>>> at sun.nio.ch.SocketChannelImpl.checkConnect(Native
Method)
> >>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
> >>>>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>>>
> >>>>>>
> >>>>
> >>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:286)
> >>>>>>>> ~[zookeeper-3.4.3.jar:3.4.3-1240972]
> >>>>>>>> at
> >>>> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
> >>>>>>>> ~[zookeeper-3.4.3.jar:3.4.3-1240972]
> >>>>>>>> 2012-05-31 21:36:56.155
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.client.ZooKeeperSaslClient -
> >>>>>>>> SecurityException: java.lang.SecurityException: Unable
to locate a
> >>>> login
> >>>>>>>> configuration occurred when trying to find JAAS configuration.
> >>>>>>>> 2012-05-31 21:36:56.156
> >> [main-SendThread(localhost.localdomain:2181)]
> >>>>>> WARN
> >>>>>>>> org.apache.zookeeper.ClientCnxn                    
         -
> >> Session
> >>>>>> 0x0
> >>>>>>>> for server null, unexpected error, closing socket connection
and
> >>>>>> attempting
> >>>>>>>> reconnect
> >>>>>>>> java.net.ConnectException: Connection refused
> >>>>>>>> at sun.nio.ch.SocketChannelImpl.checkConnect(Native
Method)
> >>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
> >>>>>>>> ~[na:1.6.0_31]
> >>>>>>>> at
> >>>>>>>>
> >>>>>>
> >>>>
> >>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:286)
> >>>>>>>> ~[zookeeper-3.4.3.jar:3.4.3-1240972]
> >>>>>>>> at
> >>>> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
> >>>>>>>> ~[zookeeper-3.4.3.
> >>
>

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