Not able to start zookeeper - apache-zookeeper

Question

I am trying to manually start zookeeper. I run
# source zkServer.sh start
It outputs:
JMX enabled by default
Using config: /opt/zookeeper-3.4.6/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
When I run #jps, it outputs
15360 QuorumPeerMain
15412 Jps
From what I read online, Zookeeper is the same process as QuorumPeerMain listed above. But then when I check its status using
source zkServer.sh status
It hangs at:
JMX enabled by default
Using config: /opt/zookeeper-3.4.6/bin/../conf/zoo.cfg
So I run
#source zkServer.sh status > templogs.txt
Running above makes terminal to flash below for a moment (I have to run this command many times to read what actually is output on terminal before it closes) and closes terminal
JMX enabled by default
Using config:
grep: No such file or directory
grep: No such file or directory
Writing to templogs.txt following
Error contacting service. It is probably not running.
When I open zookeeper.out, I can see this output:
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/opt/zookeeper-3.4.6/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/hive-0.12.0-cdh5.0.3/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/hbase-0.96.1.1-cdh5.0.3/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/spark-0.9.0-cdh/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/splicemachine/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
2015-06-29 15:49:40,831 [myid:] - INFO [main:QuorumPeerConfig#103] - Reading configuration from: /opt/zookeeper-3.4.6/bin/../conf/zoo.cfg
2015-06-29 15:49:40,836 [myid:] - INFO [main:DatadirCleanupManager#78] - autopurge.snapRetainCount set to 3
2015-06-29 15:49:40,836 [myid:] - INFO [main:DatadirCleanupManager#79] - autopurge.purgeInterval set to 0
2015-06-29 15:49:40,836 [myid:] - INFO [main:DatadirCleanupManager#101] - Purge task is not scheduled.
2015-06-29 15:49:40,837 [myid:] - WARN [main:QuorumPeerMain#113] - Either no config or no quorum defined in config, running in standalone mode
2015-06-29 15:49:40,847 [myid:] - INFO [main:QuorumPeerConfig#103] - Reading configuration from: /opt/zookeeper-3.4.6/bin/../conf/zoo.cfg
2015-06-29 15:49:40,847 [myid:] - INFO [main:ZooKeeperServerMain#95] - Starting server
2015-06-29 15:49:40,896 [myid:] - INFO [main:Environment#100] - Server environment:zookeeper.version=3.4.6-1569965, built on 02/20/2014 09:09 GMT
2015-06-29 15:49:40,896 [myid:] - INFO [main:Environment#100] - Server environment:host.name=ingester
2015-06-29 15:49:40,896 [myid:] - INFO [main:Environment#100] - Server environment:java.version=1.8.0_25
2015-06-29 15:49:40,896 [myid:] - INFO [main:Environment#100] - Server environment:java.vendor=Oracle Corporation
2015-06-29 15:49:40,900 [myid:] - INFO [main:Environment#100] - Server environment:java.home=/usr/java/jdk1.8.0_25/jre
2015-06-29 15:49:40,901 [myid:] - INFO [main:Environment#100] - Server environment:java.class.path=/opt/zookeeper-3.4.6/bin/../build/classes:/opt
I omit the huge path string that follows, and give below the remaining log:
2015-06-29 15:49:40,902 [myid:] - INFO [main:Environment#100] - Server environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2015-06-29 15:49:40,902 [myid:] - INFO [main:Environment#100] - Server environment:java.io.tmpdir=/tmp
2015-06-29 15:49:40,902 [myid:] - INFO [main:Environment#100] - Server environment:java.compiler=<NA>
2015-06-29 15:49:40,903 [myid:] - INFO [main:Environment#100] - Server environment:os.name=Linux
2015-06-29 15:49:40,903 [myid:] - INFO [main:Environment#100] - Server environment:os.arch=amd64
2015-06-29 15:49:40,903 [myid:] - INFO [main:Environment#100] - Server environment:os.version=3.17.8-200.fc20.x86_64
2015-06-29 15:49:40,903 [myid:] - INFO [main:Environment#100] - Server environment:user.name=root
2015-06-29 15:49:40,904 [myid:] - INFO [main:Environment#100] - Server environment:user.home=/root
2015-06-29 15:49:40,904 [myid:] - INFO [main:Environment#100] - Server environment:user.dir=/root
2015-06-29 15:49:40,909 [myid:] - INFO [main:ZooKeeperServer#755] - tickTime set to 2000
2015-06-29 15:49:40,909 [myid:] - INFO [main:ZooKeeperServer#764] - minSessionTimeout set to -1
2015-06-29 15:49:40,909 [myid:] - INFO [main:ZooKeeperServer#773] - maxSessionTimeout set to -1
2015-06-29 15:49:40,918 [myid:] - INFO [main:NIOServerCnxnFactory#94] - binding to port 0.0.0.0/0.0.0.0:2181
Is it like zookeeper stuck at obtaining bindings to port 2181?
But when I run lsof -i:2181 -s, it outputs:
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
java 15360 root 467u IPv6 18340028 TCP *:eforward (LISTEN)
The pid is that of the QuorumPeerMain.
Running source zkServer.sh status on another PC, properly gives
Mode: standalone
But on this PC, I am pretty much screwed. Can anyone help me.

Answer 1

Have you validated that the config file is fine?
Try to run Zookeeper with the config file full path
Example: zkServer.sh start /etc/zookeeper/conf/zoo.cfg

Answer 2

It seems some problem with the PORT binding
"binding to port 0.0.0.0/0.0.0.0:2181"
and the problem should be resolved by adding below the host entry to the hosts file
127.0.0.1 localhost

Answer 3

In my case zookeeper 3.7.0. just need shutdown tomcat server

Answer 4

In my case i not install JAVA
so it was not started
please download JDK and install
then try again