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From Mazhar Shaikh <mazhar.shaikh...@gmail.com>
Subject Re: zookeeper 3.4.6 listening on unknown random port
Date Wed, 31 Aug 2016 12:21:42 GMT
Hi Rakesh,

No, I haven't configured any JMX port for zookeeper.
may be it's jmx remote monitoring port.

Thank you.

Regards,
Mazhar Shaikh.


On Wed, Aug 31, 2016 at 4:55 PM, Rakesh Radhakrishnan <rakeshr@apache.org>
wrote:

> Hi Mazhar,
>
> I doubt the possibility of jmx remote monitoring random port. Did you
> configure environment variable JMXPORT to avoid random port ?
>
> Rakesh
>
> On Wed, Aug 31, 2016 at 4:06 PM, Mazhar Shaikh <mazhar.shaikh.in@gmail.com
> >
> wrote:
>
> > Hi All,
> >
> > Im running a 3 zookeeper  process and noticed all 3 zookeeper process is
> > listening on one unknown random port.
> >
> > Can someone please help me to understand why is this port used for ?
> >
> > This port not handling any connections and all the 3 zookeeper has
> > different port number.
> >
> > Node1 -> has 1 zookeeper (z1)
> > node2 -> has 2 zookeeper (z3 & z3)
> >
> > server.1=z1.zookeeper.com:2888:3888
> > server.2=z2.zookeeper.com:2888:3888
> > server.3=z3.zookeeper.com:2889:3889
> >
> > ****************** Node1 - z1 *********************
> > Zookeeper version: 3.4.6-1569965, built on 02/20/2014 09:09 GMT
> > Clients:
> >  /192.168.2.116:53028[1](queued=0,recved=173,sent=173)
> >  /192.168.2.27:38375[1](queued=0,recved=175,sent=175)
> >  /192.168.2.28:42044[1](queued=0,recved=161,sent=161)
> >  /192.168.2.116:55142[0](queued=0,recved=1,sent=0)
> >  /192.168.2.216:50024[1](queued=0,recved=176,sent=176)
> >
> > Latency min/avg/max: 0/149/14357
> > Received: 1765
> > Sent: 1753
> > Connections: 5
> > Outstanding: 0
> > Zxid: 0x1000016b8
> > Mode: follower
> > Node count: 216
> >
> > ****************** Node2 - z2 *********************
> > Zookeeper version: 3.4.6-1569965, built on 02/20/2014 09:09 GMT
> > Clients:
> >  /192.168.2.17:45103[1](queued=0,recved=195,sent=195)
> >  /192.168.2.18:38099[1](queued=0,recved=176,sent=176)
> >  /192.168.2.116:60666[0](queued=0,recved=1,sent=0)
> >
> > Latency min/avg/max: 0/308/21523
> > Received: 9680
> > Sent: 9499
> > Connections: 3
> > Outstanding: 0
> > Zxid: 0x1000016b8
> > Mode: leader
> > Node count: 216
> >
> > ****************** Node2 - z3 *********************
> > Zookeeper version: 3.4.6-1569965, built on 02/20/2014 09:09 GMT
> > Clients:
> >  /192.168.2.116:47141[0](queued=0,recved=1,sent=0)
> >
> > Latency min/avg/max: 0/0/0
> > Received: 13
> > Sent: 12
> > Connections: 1
> > Outstanding: 0
> > Zxid: 0x1000016b8
> > Mode: follower
> > Node count: 216
> >
> > ***************************************
> >
> > z1 - ports
> > # netstat -anp | grep 15643 | grep LISTEN
> > tcp6       0      0 :::36895                :::*
> > LISTEN      15643/java
> > tcp6       0      0 :::2181                 :::*
> > LISTEN      15643/java
> > tcp6       0      0 169.254.2.116:3888      :::*
> > LISTEN      15643/java
> >
> >
> > z2 - ports
> > # netstat -anp | grep 21235 | grep LISTEN
> > tcp6       0      0 :::2181                 :::*
> > LISTEN      21235/java
> > tcp6       0      0 :::40037                :::*
> > LISTEN      21235/java
> > tcp6       0      0 169.254.2.216:2888      :::*
> > LISTEN      21235/java
> > tcp6       0      0 169.254.2.216:3888      :::*
> > LISTEN      21235/java
> >
> > z3 - ports
> >  <Perf_VSEPx SYS_CTRLI1> root@sysctrl2:~# netstat -anp | grep 40497 |
> grep
> > LISTEN
> > tcp6       0      0 :::2182                 :::*
> > LISTEN      40497/java
> > tcp6       0      0 169.254.2.1:3889        :::*
> > LISTEN      40497/java
> > tcp6       0      0 :::42455                :::*
> > LISTEN      40497/java
> >
> >
> > Here "z1,z2,z3" are listening on "36895, 40037 & 42455" port respectively
> > which has not been configured.
> >
> > Thanks.
> >
> > Regards,
> > Mazhar Shaikh.
> >
>

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