zookeeper-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Abhimanyu Nagrath <abhimanyunagr...@gmail.com>
Subject Zookeeper using high CPU
Date Sun, 01 Jan 2017 17:09:07 GMT
I am new to zookeeper and I have a single node zookeeper setup on a
system having 2 cores and 16 GB RAM. The number of active connections
on zookeeper is near about 700.And it is taking 2 GB of RAM and 100%
CPU(on both the cores). I am unable to find out what is causing this
high CPU Utilization

My Zookeeper Config is:

    # Licensed to the Apache Software Foundation (ASF) under one or more
    # contributor license agreements.  See the NOTICE file distributed with
    # this work for additional information regarding copyright ownership.
    # The ASF licenses this file to You under the Apache License, Version 2.0
    # (the "License"); you may not use this file except in compliance with
    # the License.  You may obtain a copy of the License at
    #
    #    http://www.apache.org/licenses/LICENSE-2.0
    #
    # Unless required by applicable law or agreed to in writing, software
    # distributed under the License is distributed on an "AS IS" BASIS,
    # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    # See the License for the specific language governing permissions and
    # limitations under the License.
    # the directory where the snapshot is stored.
    dataDir=/path
    # the port at which the clients will connect
    clientPort=2181
    # disable the per-ip limit on the number of connections since this
is a non-production config
    maxClientCnxns=0

and the zookeeper logs are:

    [2016-12-30 08:14:47,057] INFO Client attempting to establish new
session at /10.179.63.152:43480
(org.apache.zookeeper.server.ZooKeeperServer)
    [2016-12-30 08:14:47,107] INFO Established session
0x1594ae64cde0188 with negotiated timeout 10000 for client
/xx.xxx.xx.xxx:43480 (org.apache.zookeeper.server.ZooKeeperServer)
    [2016-12-30 08:14:48,099] INFO Got user-level KeeperException when
processing sessionid:0x1594ae64cde0188 type:create cxid:0x2
zxid:0xa798c81b txntype:-1 reqpath:n/a Error Path:/consumers
Error:KeeperErrorCode = NodeExists for /consumers
(org.apache.zookeeper.server.PrepRequestProcessor)
    [2016-12-30 08:14:48,100] INFO Got user-level KeeperException when
processing sessionid:0x1594ae64cde0188 type:create cxid:0x3
zxid:0xa798c81c txntype:-1 reqpath:n/a Error Path:/consumers/prod
Error:KeeperErrorCode = NodeExists for /consumers/prod
(org.apache.zookeeper.server.PrepRequestProcessor)
    [2016-12-30 08:14:48,101] INFO Got user-level KeeperException when
processing sessionid:0x1594ae64cde0188 type:create cxid:0x4
zxid:0xa798c81d txntype:-1 reqpath:n/a Error Path:/consumers/prod/ids
Error:KeeperErrorCode = NodeExists for /consumers/prod/ids
(org.apache.zookeeper.server.PrepRequestProcessor)
    [2016-12-30 08:15:25,273] INFO Accepted socket connection from
/10.185.3.226:58898 (org.apache.zookeeper.server.NIOServerCnxnFactory)
    [2016-12-30 08:15:25,284] INFO Client attempting to establish new
session at /xx.xxx.xx.xxx:58898
(org.apache.zookeeper.server.ZooKeeperServer)
    [2016-12-30 08:15:25,347] INFO Established session
0x1594ae64cde0189 with negotiated timeout 10000 for client
/xx.xxx.xx.xxx:58898 (org.apache.zookeeper.server.ZooKeeperServer)
    [2016-12-30 08:15:26,762] INFO Got user-level KeeperException when
processing sessionid:0x1594ae64cde0189 type:create cxid:0x2
zxid:0xa798cb43 txntype:-1 reqpath:n/a Error Path:/consumers
Error:KeeperErrorCode = NodeExists for /consumers
(org.apache.zookeeper.server.PrepRequestProcessor)
    [2016-12-30 08:15:26,762] INFO Got user-level KeeperException when
processing sessionid:0x1594ae64cde0189 type:create cxid:0x3
zxid:0xa798cb44 txntype:-1 reqpath:n/a Error Path:/consumers/prod
Error:KeeperErrorCode = NodeExists for /consumers/prod
(org.apache.zookeeper.server.PrepRequestProcessor)
    [2016-12-30 08:15:26,763] INFO Got user-level KeeperException when
processing sessionid:0x1594ae64cde0189 type:create cxid:0x4
zxid:0xa798cb45 txntype:-1 reqpath:n/a Error Path:/consumers/prod/ids
Error:KeeperErrorCode = NodeExists for /consumers/prod/ids
(org.apache.zookeeper.server.PrepRequestProcessor)
    [2016-12-30 08:15:56,786] INFO Accepted socket connection from
/xx.xxx.xx.xxx:43574
(org.apache.zookeeper.server.NIOServerCnxnFactory)
    [2016-12-30 08:15:56,790] INFO Client attempting to establish new
session at /xx.xxx.xx.xxx:43574
(org.apache.zookeeper.server.ZooKeeperServer)
    [2016-12-30 08:15:56,843] INFO Established session
0x1594ae64cde018a with negotiated timeout 10000 for client
/10.185.178.18:43574 (org.apache.zookeeper.server.ZooKeeperServer)
    [2016-12-30 08:15:57,743] INFO Got user-level KeeperException when
processing sessionid:0x1594ae64cde018a type:create cxid:0x2
zxid:0xa798db9d txntype:-1 reqpath:n/a Error Path:/consumers
Error:KeeperErrorCode = NodeExists for /consumers
(org.apache.zookeeper.server.PrepRequestProcessor)
    [2016-12-30 08:15:57,743] INFO Got user-level KeeperException when
processing sessionid:0x1594ae64cde018a type:create cxid:0x3
zxid:0xa798db9e txntype:-1 reqpath:n/a Error Path:/consumers/prod
Error:KeeperErrorCode = NodeExists for /consumers/prod
(org.apache.zookeeper.server.PrepRequestProcessor)
    [2016-12-30 08:15:57,744] INFO Got user-level KeeperException when
processing sessionid:0x1594ae64cde018a type:create cxid:0x4
zxid:0xa798db9f txntype:-1 reqpath:n/a Error Path:/consumers/prod/ids
Error:KeeperErrorCode = NodeExists for /consumers/prod/ids
(org.apache.zookeeper.server.PrepRequestProcessor)

Can someone help me identify the problem .


Regards,
Abhimanyu

Mime
View raw message