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From "Michael K. Edwards (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-2592) Zookeeper is not recoverable once running system( machine on which zookeeper is running) is out of space
Date Thu, 22 Nov 2018 01:05:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16695439#comment-16695439
] 

Michael K. Edwards commented on ZOOKEEPER-2592:
-----------------------------------------------

Fix needed for 3.5.5?  Or is this obsolete and closable?

> Zookeeper is not recoverable once running system( machine on which zookeeper is running)
is out of space
> --------------------------------------------------------------------------------------------------------
>
>                 Key: ZOOKEEPER-2592
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2592
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: server
>    Affects Versions: 3.5.1, 3.5.2
>            Reporter: Rakesh Kumar Singh
>            Priority: Critical
>
> Zookeeper is not recoverable once running system( machine on which zookeeper is running)
is out of space 
> Steps to reproduce:-
> 1. Install zookeeper on standalone mode and start zookeeper
> 2. Make the machine physical memory full
> 3. Connect through client to zookeeper and trying create some znodes with some data.
> 4. After sometime creating further znode will not happened as complete memory is occupied
> 5. Now start creating space in that machine
> 6. Again connect through a client. Connection is fine. Now try to execute any command
like "ls / " it fails even though now space is more than 11gb
> Client log:-
> BLR1000007042:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin # df -h
> Filesystem      Size  Used Avail Use% Mounted on
> /dev/xvda2       36G   24G   11G  70% /
> udev            1.9G  116K  1.9G   1% /dev
> tmpfs           1.9G     0  1.9G   0% /dev/shm
> BLR1000007042:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin # ./zkCli.sh
> Connecting to localhost:2181
> 2016-09-19 22:50:20,227 [myid:] - INFO  [main:Environment@109] - Client environment:zookeeper.version=3.5.1-alpha--1,
built on 08/18/2016 08:20 GMT
> 2016-09-19 22:50:20,231 [myid:] - INFO  [main:Environment@109] - Client environment:host.name=BLR1000007042
> 2016-09-19 22:50:20,231 [myid:] - INFO  [main:Environment@109] - Client environment:java.version=1.7.0_79
> 2016-09-19 22:50:20,234 [myid:] - INFO  [main:Environment@109] - Client environment:java.vendor=Oracle
Corporation
> 2016-09-19 22:50:20,234 [myid:] - INFO  [main:Environment@109] - Client environment:java.home=/usr/java/jdk1.7.0_79/jre
> 2016-09-19 22:50:20,234 [myid:] - INFO  [main:Environment@109] - Client environment:java.class.path=/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../build/classes:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../build/lib/*.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/slf4j-log4j12-1.7.5.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/slf4j-api-1.7.5.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/servlet-api-2.5-20081211.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/netty-3.7.0.Final.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/log4j-1.2.16.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jline-2.11.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jetty-util-6.1.26.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jetty-6.1.26.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/javacc.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jackson-mapper-asl-1.9.11.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jackson-core-asl-1.9.11.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/commons-cli-1.2.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/ant-eclipse-1.0-jvm1.2.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../zookeeper-3.5.1-alpha.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../src/java/lib/ant-eclipse-1.0-jvm1.2.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../conf:/usr/java/jdk1.7.0_79/lib
> 2016-09-19 22:50:20,234 [myid:] - INFO  [main:Environment@109] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
> 2016-09-19 22:50:20,234 [myid:] - INFO  [main:Environment@109] - Client environment:java.io.tmpdir=/tmp
> 2016-09-19 22:50:20,234 [myid:] - INFO  [main:Environment@109] - Client environment:java.compiler=<NA>
> 2016-09-19 22:50:20,235 [myid:] - INFO  [main:Environment@109] - Client environment:os.name=Linux
> 2016-09-19 22:50:20,235 [myid:] - INFO  [main:Environment@109] - Client environment:os.arch=amd64
> 2016-09-19 22:50:20,235 [myid:] - INFO  [main:Environment@109] - Client environment:os.version=3.0.76-0.11-default
> 2016-09-19 22:50:20,235 [myid:] - INFO  [main:Environment@109] - Client environment:user.name=root
> 2016-09-19 22:50:20,235 [myid:] - INFO  [main:Environment@109] - Client environment:user.home=/root
> 2016-09-19 22:50:20,235 [myid:] - INFO  [main:Environment@109] - Client environment:user.dir=/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin
> 2016-09-19 22:50:20,235 [myid:] - INFO  [main:Environment@109] - Client environment:os.memory.free=52MB
> 2016-09-19 22:50:20,237 [myid:] - INFO  [main:Environment@109] - Client environment:os.memory.max=227MB
> 2016-09-19 22:50:20,238 [myid:] - INFO  [main:Environment@109] - Client environment:os.memory.total=57MB
> 2016-09-19 22:50:20,241 [myid:] - INFO  [main:ZooKeeper@716] - Initiating client connection,
connectString=localhost:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@3865db85
> Welcome to ZooKeeper!
> 2016-09-19 22:50:20,264 [myid:] - INFO  [main-SendThread(localhost:2181):ClientCnxn$SendThread@1138]
- Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate
using SASL (unknown error)
> 2016-09-19 22:50:20,270 [myid:] - INFO  [main-SendThread(localhost:2181):ClientCnxn$SendThread@980]
- Socket connection established, initiating session, client: /127.0.0.1:47801, server: localhost/127.0.0.1:2181
> JLine support is enabled
> [INFO] Unable to bind key for unsupported operation: backward-delete-word
> [INFO] Unable to bind key for unsupported operation: backward-delete-word
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [INFO] Unable to bind key for unsupported operation: up-history
> [INFO] Unable to bind key for unsupported operation: down-history
> [zk: localhost:2181(CONNECTING) 0] ls /
> 2016-09-19 22:50:35,280 [myid:] - INFO  [main-SendThread(localhost:2181):ClientCnxn$SendThread@1251]
- Client session timed out, have not heard from server in 15011ms for sessionid 0x0, closing
socket connection and attempting reconnect
> Exception in thread "main" org.apache.zookeeper.KeeperException$ConnectionLossException:
KeeperErrorCode = ConnectionLoss for /
> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
> 	at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:2255)
> 	at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:2283)
> 	at org.apache.zookeeper.cli.LsCommand.exec(LsCommand.java:93)
> 	at org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:674)
> 	at org.apache.zookeeper.ZooKeeperMain.processCmd(ZooKeeperMain.java:577)
> 	at org.apache.zookeeper.ZooKeeperMain.executeLine(ZooKeeperMain.java:360)
> 	at org.apache.zookeeper.ZooKeeperMain.run(ZooKeeperMain.java:320)
> 	at org.apache.zookeeper.ZooKeeperMain.main(ZooKeeperMain.java:280)
> BLR1000007042:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin # 
> -{color:blue} Server log
> 2016-09-19 22:34:13,380 [myid:] - INFO  [main:QuorumPeerConfig@114] - Reading configuration
from: /home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../conf/zoo.cfg
> 2016-09-19 22:34:13,386 [myid:] - INFO  [main:QuorumPeerConfig@316] - clientPortAddress
is 0.0.0.0/0.0.0.0:2181
> 2016-09-19 22:34:13,386 [myid:] - INFO  [main:QuorumPeerConfig@320] - secureClientPort
is not set
> 2016-09-19 22:34:13,389 [myid:] - INFO  [main:DatadirCleanupManager@78] - autopurge.snapRetainCount
set to 3
> 2016-09-19 22:34:13,389 [myid:] - INFO  [main:DatadirCleanupManager@79] - autopurge.purgeInterval
set to 0
> 2016-09-19 22:34:13,390 [myid:] - INFO  [main:DatadirCleanupManager@101] - Purge task
is not scheduled.
> 2016-09-19 22:34:13,390 [myid:] - WARN  [main:QuorumPeerMain@122] - Either no config
or no quorum defined in config, running  in standalone mode
> 2016-09-19 22:34:13,402 [myid:] - INFO  [main:QuorumPeerConfig@114] - Reading configuration
from: /home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../conf/zoo.cfg
> 2016-09-19 22:34:13,402 [myid:] - INFO  [main:QuorumPeerConfig@316] - clientPortAddress
is 0.0.0.0/0.0.0.0:2181
> 2016-09-19 22:34:13,402 [myid:] - INFO  [main:QuorumPeerConfig@320] - secureClientPort
is not set
> 2016-09-19 22:34:13,403 [myid:] - INFO  [main:ZooKeeperServerMain@113] - Starting server
> 2016-09-19 22:34:13,416 [myid:] - INFO  [main:Environment@109] - Server environment:zookeeper.version=3.5.1-alpha--1,
built on 08/18/2016 08:20 GMT
> 2016-09-19 22:34:13,416 [myid:] - INFO  [main:Environment@109] - Server environment:host.name=BLR1000007042
> 2016-09-19 22:34:13,416 [myid:] - INFO  [main:Environment@109] - Server environment:java.version=1.7.0_79
> 2016-09-19 22:34:13,417 [myid:] - INFO  [main:Environment@109] - Server environment:java.vendor=Oracle
Corporation
> 2016-09-19 22:34:13,417 [myid:] - INFO  [main:Environment@109] - Server environment:java.home=/usr/java/jdk1.7.0_79/jre
> 2016-09-19 22:34:13,419 [myid:] - INFO  [main:Environment@109] - Server environment:java.class.path=/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../build/classes:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../build/lib/*.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/slf4j-log4j12-1.7.5.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/slf4j-api-1.7.5.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/servlet-api-2.5-20081211.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/netty-3.7.0.Final.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/log4j-1.2.16.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jline-2.11.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jetty-util-6.1.26.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jetty-6.1.26.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/javacc.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jackson-mapper-asl-1.9.11.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/jackson-core-asl-1.9.11.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/commons-cli-1.2.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../lib/ant-eclipse-1.0-jvm1.2.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../zookeeper-3.5.1-alpha.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../src/java/lib/ant-eclipse-1.0-jvm1.2.jar:/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin/../conf:/usr/java/jdk1.7.0_79/lib
> 2016-09-19 22:34:13,420 [myid:] - INFO  [main:Environment@109] - Server environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
> 2016-09-19 22:34:13,420 [myid:] - INFO  [main:Environment@109] - Server environment:java.io.tmpdir=/tmp
> 2016-09-19 22:34:13,420 [myid:] - INFO  [main:Environment@109] - Server environment:java.compiler=<NA>
> 2016-09-19 22:34:13,420 [myid:] - INFO  [main:Environment@109] - Server environment:os.name=Linux
> 2016-09-19 22:34:13,420 [myid:] - INFO  [main:Environment@109] - Server environment:os.arch=amd64
> 2016-09-19 22:34:13,421 [myid:] - INFO  [main:Environment@109] - Server environment:os.version=3.0.76-0.11-default
> 2016-09-19 22:34:13,421 [myid:] - INFO  [main:Environment@109] - Server environment:user.name=root
> 2016-09-19 22:34:13,421 [myid:] - INFO  [main:Environment@109] - Server environment:user.home=/root
> 2016-09-19 22:34:13,421 [myid:] - INFO  [main:Environment@109] - Server environment:user.dir=/home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/bin
> 2016-09-19 22:34:13,421 [myid:] - INFO  [main:Environment@109] - Server environment:os.memory.free=51MB
> 2016-09-19 22:34:13,422 [myid:] - INFO  [main:Environment@109] - Server environment:os.memory.max=889MB
> 2016-09-19 22:34:13,422 [myid:] - INFO  [main:Environment@109] - Server environment:os.memory.total=57MB
> 2016-09-19 22:34:13,424 [myid:] - INFO  [main:ZooKeeperServer@858] - minSessionTimeout
set to 4000
> 2016-09-19 22:34:13,424 [myid:] - INFO  [main:ZooKeeperServer@867] - maxSessionTimeout
set to 40000
> 2016-09-19 22:34:13,424 [myid:] - INFO  [main:ZooKeeperServer@156] - Created server with
tickTime 2000 minSessionTimeout 4000 maxSessionTimeout 40000 datadir /home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/zoo_log/version-2
snapdir /home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/data/version-2
> 2016-09-19 22:34:13,453 [myid:] - INFO  [main:Slf4jLog@67] - Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log)
via org.mortbay.log.Slf4jLog
> 2016-09-19 22:34:13,477 [myid:] - INFO  [main:Slf4jLog@67] - jetty-6.1.26
> 2016-09-19 22:34:13,510 [myid:] - INFO  [main:Slf4jLog@67] - Started SelectChannelConnector@0.0.0.0:8080
> 2016-09-19 22:34:13,514 [myid:] - INFO  [main:JettyAdminServer@105] - Started AdminServer
on address 0.0.0.0, port 8080 and command URL /commands
> 2016-09-19 22:34:13,521 [myid:] - INFO  [main:NIOServerCnxnFactory@673] - Configuring
NIO connection handler with 10s sessionless connection timeout, 1 selector thread(s), 8 worker
threads, and 64 kB direct buffers.
> 2016-09-19 22:34:13,523 [myid:] - INFO  [main:NIOServerCnxnFactory@686] - binding to
port 0.0.0.0/0.0.0.0:2181
> 2016-09-19 22:34:13,537 [myid:] - INFO  [main:FileTxnSnapLog@298] - Snapshotting: 0x0
to /home/Rakesh/Zookeeper/18_Aug/cluster/zookeeper-3.5.1-alpha/data/version-2/snapshot.0
> 2016-09-19 22:34:13,567 [myid:] - INFO  [main:ContainerManager@64] - Using checkIntervalMs=60000
maxPerMinute=10000
> 2016-09-19 22:35:41,907 [myid:] - INFO  [NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory$AcceptThread@296]
- Accepted socket connection from /0:0:0:0:0:0:0:1:49485
> 2016-09-19 22:35:41,917 [myid:] - INFO  [NIOWorkerThread-1:ZooKeeperServer@964] - Client
attempting to establish new session at /0:0:0:0:0:0:0:1:49485
> 2016-09-19 22:35:41,919 [myid:] - INFO  [SyncThread:0:FileTxnLog@200] - Creating new
log file: log.1
> 2016-09-19 22:35:41,952 [myid:] - INFO  [SyncThread:0:ZooKeeperServer@678] - Established
session 0x100632436270000 with negotiated timeout 30000 for client /0:0:0:0:0:0:0:1:49485
> 2016-09-19 22:40:21,211 [myid:] - INFO  [NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory$AcceptThread@296]
- Accepted socket connection from /10.18.221.194:34892
> 2016-09-19 22:40:21,218 [myid:] - INFO  [NIOWorkerThread-8:ZooKeeperServer@964] - Client
attempting to establish new session at /10.18.221.194:34892
> 2016-09-19 22:40:21,221 [myid:] - INFO  [SyncThread:0:ZooKeeperServer@678] - Established
session 0x100632436270001 with negotiated timeout 30000 for client /10.18.221.194:34892
> 2016-09-19 22:40:40,298 [myid:] - INFO  [ProcessThread(sid:0 cport:2181)::PrepRequestProcessor@649]
- Processed session termination for sessionid: 0x100632436270001
> 2016-09-19 22:40:40,301 [myid:] - INFO  [NIOWorkerThread-3:MBeanRegistry@119] - Unregister
MBean [org.apache.ZooKeeperService:name0=StandaloneServer_port2181,name1=Connections,name2=10.18.221.194,name3=0x100632436270001]
> 2016-09-19 22016-09-19 22:43:47,733 [myid:] - INFO  [SyncThread:0:ZooKeeperServer@498]
- shutting down
> 2016-09-19 22:44:39,892 [myid:] - INFO  [NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory$AcceptThread@296]
- Accepted socket connection from /127.0.0.1:47796
> 2016-09-19 22:44:39,898 [myid:] - INFO  [NIOWorkerThread-2:ZooKeeperServer@964] - Client
attempting to establish new session at /127.0.0.1:47796
> 2016-09-19 22:45:15,883 [myid:] - INFO  [NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory$AcceptThread@296]
- Accepted socket connection from /0:0:0:0:0:0:0:1:49493
> 2016-09-19 22:45:15,890 [myid:] - INFO  [NIOWorkerThread-3:ZooKeeperServer@964] - Client
attempting to establish new session at /0:0:0:0:0:0:0:1:49493
> 2016-09-19 22:45:16,000 [myid:] - INFO  [ConnnectionExpirer:NIOServerCnxn@606] - Closed
socket connection for client /127.0.0.1:47796 which had sessionid 0x100632436270012
> 2016-09-19 22:45:46,000 [myid:] - INFO  [ConnnectionExpirer:NIOServerCnxn@606] - Closed
socket connection for client /0:0:0:0:0:0:0:1:49493 which had sessionid 0x100632436270013
> 2016-09-19 22:47:42,512 [myid:] - INFO  [NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory$AcceptThread@296]
- Accepted socket connection from /0:0:0:0:0:0:0:1:49494
> 2016-09-19 22:47:42,519 [myid:] - INFO  [NIOWorkerThread-4:ZooKeeperServer@964] - Client
attempting to establish new session at /0:0:0:0:0:0:0:1:49494
> 2016-09-19 22:48:16,001 [myid:] - INFO  [ConnnectionExpirer:NIOServerCnxn@606] - Closed
socket connection for client /0:0:0:0:0:0:0:1:49494 which had sessionid 0x100632436270014
> 2016-09-19 22:50:20,268 [myid:] - INFO  [NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory$AcceptThread@296]
- Accepted socket connection from /127.0.0.1:47801
> 2016-09-19 22:50:20,275 [myid:] - INFO  [NIOWorkerThread-5:ZooKeeperServer@964] - Client
attempting to establish new session at /127.0.0.1:47801
> 2016-09-19 22:50:56,000 [myid:] - INFO  [ConnnectionExpirer:NIOServerCnxn@606] - Closed
socket connection for client /127.0.0.1:47801 which had sessionid 0x100632436270015
> {color}



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