Find below Zookeeper logs:

2017-09-12 17:05:19,124 [myid:] - INFO  [main:QuorumPeerConfig@101] - Reading configuration from: /app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../conf/zoo.cfg
2017-09-12 17:05:19,133 [myid:] - INFO  [main:DatadirCleanupManager@78] - autopurge.snapRetainCount set to 3
2017-09-12 17:05:19,134 [myid:] - INFO  [main:DatadirCleanupManager@79] - autopurge.purgeInterval set to 0
2017-09-12 17:05:19,134 [myid:] - INFO  [main:DatadirCleanupManager@101] - Purge task is not scheduled.
2017-09-12 17:05:19,135 [myid:] - WARN  [main:QuorumPeerMain@113] - Either no config or no quorum defined in config, running  in standalone mode
2017-09-12 17:05:19,161 [myid:] - INFO  [main:QuorumPeerConfig@101] - Reading configuration from: /app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../conf/zoo.cfg
2017-09-12 17:05:19,162 [myid:] - INFO  [main:ZooKeeperServerMain@95] - Starting server
2017-09-12 17:05:19,175 [myid:] - INFO  [main:Environment@98] - Server environment:zookeeper.version=3.4.3-1240972, built on 02/06/2012 10:48 GMT
2017-09-12 17:05:19,176 [myid:] - INFO  [main:Environment@98] - Server environment:host.name=codehdplak-po-r19p.sys.comcast.net
2017-09-12 17:05:19,176 [myid:] - INFO  [main:Environment@98] - Server environment:java.version=1.8.0_31
2017-09-12 17:05:19,177 [myid:] - INFO  [main:Environment@98] - Server environment:java.vendor=Oracle Corporation
2017-09-12 17:05:19,177 [myid:] - INFO  [main:Environment@98] - Server environment:java.home=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.31-2.b13.el7.x86_64/jre
2017-09-12 17:05:19,178 [myid:] - INFO  [main:Environment@98] - Server environment:java.class.path=/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../build/classes:/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../build/lib/*.jar:/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../lib/slf4j-log4j12-1.6.1.jar:/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../lib/slf4j-api-1.6.1.jar:/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../lib/netty-3.2.2.Final.jar:/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../lib/log4j-1.2.15.jar:/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../lib/jline-0.9.94.jar:/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../zookeeper-3.4.3.jar:/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../src/java/lib/*.jar:/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../conf:
2017-09-12 17:05:19,178 [myid:] - INFO  [main:Environment@98] - Server environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2017-09-12 17:05:19,179 [myid:] - INFO  [main:Environment@98] - Server environment:java.io.tmpdir=/tmp
2017-09-12 17:05:19,179 [myid:] - INFO  [main:Environment@98] - Server environment:java.compiler=<NA>
2017-09-12 17:05:19,180 [myid:] - INFO  [main:Environment@98] - Server environment:os.name=Linux
2017-09-12 17:05:19,180 [myid:] - INFO  [main:Environment@98] - Server environment:os.arch=amd64
2017-09-12 17:05:19,181 [myid:] - INFO  [main:Environment@98] - Server environment:os.version=3.10.0-123.20.1.el7.x86_64
2017-09-12 17:05:19,181 [myid:] - INFO  [main:Environment@98] - Server environment:user.name=root
2017-09-12 17:05:19,182 [myid:] - INFO  [main:Environment@98] - Server environment:user.home=/root
2017-09-12 17:05:19,182 [myid:] - INFO  [main:Environment@98] - Server environment:user.dir=/app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper
2017-09-12 17:05:19,195 [myid:] - INFO  [main:ZooKeeperServer@733] - tickTime set to 2000
2017-09-12 17:05:19,195 [myid:] - INFO  [main:ZooKeeperServer@742] - minSessionTimeout set to -1
2017-09-12 17:05:19,195 [myid:] - INFO  [main:ZooKeeperServer@751] - maxSessionTimeout set to -1
2017-09-12 17:05:19,213 [myid:] - INFO  [main:NIOServerCnxnFactory@110] - binding to port 0.0.0.0/0.0.0.0:2181
2017-09-12 17:05:19,240 [myid:] - INFO  [main:FileTxnSnapLog@238] - Snapshotting: 0x0 to /tmp/zookeeper/version-2/snapshot.0
2017-09-12 17:05:19,673 [myid:] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@213] - Accepted socket connection from /0:0:0:0:0:0:0:1:21754
2017-09-12 17:17:40,265 [myid:] - WARN  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@349] - caught end of stream exception
EndOfStreamException: Unable to read additional data from client sessionid 0x0, likely client has closed socket
        at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:220)
        at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:224)
        at java.lang.Thread.run(Thread.java:745)
2017-09-12 17:17:40,267 [myid:] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1000] - Closed socket connection for client /0:0:0:0:0:0:0:1:21754 (no session established for client)
2017-09-12 17:18:06,236 [myid:] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@213] - Accepted socket connection from /127.0.0.1:48071
2017-09-12 17:18:06,247 [myid:] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@838] - Client attempting to establish new session at /127.0.0.1:48071
2017-09-12 17:18:06,250 [myid:] - INFO  [SyncThread:0:FileTxnLog@199] - Creating new log file: log.1
2017-09-12 17:18:06,263 [myid:] - INFO  [SyncThread:0:ZooKeeperServer@604] - Established session 0x15e770d61920000 with negotiated timeout 6000 for client /127.0.0.1:48071
2017-09-12 17:18:06,321 [myid:] - INFO  [ProcessThread(sid:0 cport:-1)::PrepRequestProcessor@617] - Got user-level KeeperException when processing sessionid:0x15e770d61920000 type:create cxid:0x5 zxid:0x3 txntype:-1 reqpath:n/a Error Path:/brokers Error:KeeperErrorCode = NoNode for /brokers
2017-09-12 17:18:06,342 [myid:] - INFO  [ProcessThread(sid:0 cport:-1)::PrepRequestProcessor@617] - Got user-level KeeperException when processing sessionid:0x15e770d61920000 type:create cxid:0
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