Shulou(Shulou.com)06/01 Report--

I. Description

Early in the morning just arrived at the company found alarm, disk capacity alarm, zookeeper cluster server alarm.

II. Process

View disk space

df -h

2. Confirm that directory takes up a lot of space and find it is zookeeper

Modify zookeeper parameter file (version 3.4.6)

vi zoo.cfg

# The number of snapshots to retain in dataDir

autopurge.snapRetainCount=20 #Keep 20 logs and 20 snapshots each

# Purge task interval in hours

# Set to "0" to disable auto purge feature

autopurge.purgeInterval=1 #Clean once per hour

3. view status

$ /usr/local/RoilandGroup/zookeeper/bin/zkServer.sh status

JMX enabled by default

Using config: /usr/local/RoilandGroup/zookeeper/bin/../ conf/zoo.cfg

Mode: leader

4. close the service

$ /usr/local/RoilandGroup/zookeeper/bin/zkServer.sh stop

JMX enabled by default

Using config: /usr/local/RoilandGroup/zookeeper/bin/../ conf/zoo.cfg

Stopping zookeeper ... STOPPED

5. restart the service

$ /usr/local/RoilandGroup/zookeeper/bin/zkServer.sh start

JMX enabled by default

Using config: /usr/local/RoilandGroup/zookeeper/bin/../ conf/zoo.cfg

Starting zookeeper ... STARTED

[hadoop@host-10-60-40-37 conf]$ jps

8118449 QuorumPeerMain

6. Each node in the zookeeper cluster needs to modify the parameter file and then restart the service.

As for why this modification, whether there are other ways, you can see the official documents, or lazy Baidu.

7. Understand each parameter file, just read the comments

less zoo.cfg

# The number of milliseconds of each tick

tickTime=2000

# The number of ticks that the initial

# synchronization phase can take

initLimit=10

# The number of ticks that can pass between

# sending a request and getting an acknowledgement

syncLimit=5

# the directory where the snapshot is stored.

# do not use /tmp for storage, /tmp here is just

# example sakes.

dataDir=/data/zookeeper

# the port at which the clients will connect

clientPort=2181

# the maximum number of client connections.

# increase this if you need to handle more clients

#maxClientCnxns=60

#

# Be sure to read the maintenance section of the

# administrator guide before turning on autopurge.

#

# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance

#

# The number of snapshots to retain in dataDir

autopurge.snapRetainCount=20

# Purge task interval in hours

# Set to "0" to disable auto purge feature

autopurge.purgeInterval=1

#####################################################

#####################################################

#####################################################

server.1=10.10.10.11:2888:3888

server.2=10.10.10.12:2888:3888

server.3=10.10.10.13:2888:3888

server.4=10.10.10.14:2888:3888

server.5=10.10.10.15:2888:3888

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