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Zookeeper Server keeps stopping after I restart with Ambar

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I'm running hdp 2.3.6 on AWS.

I restart zookeeper server & it starts without any error but quickly stops. The stderr has no entries.

I'd appreciate any help to debug this issues.

Thanks in advance,

Sai Dileep.

16 REPLIES 16

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Expert Contributor

It could be your configuration problem if you don't find any logs even after this setting. or you may be configured different log directory location.

Share the output of "/etc/zookeeper/conf/zookeeper-env.sh" ?

Also, you are missing the log patterns. Please append to log4j.properties as highlighted here.

Ambari -> Zookeeper -> Configs -> Advanced zookeeper-log4j,

..

log4j.appender.ROLLINGFILE.MaxBackupIndex=10

log4j.appender.ROLLINGFILE.layout=org.apache.log4j.PatternLayout log4j.appender.ROLLINGFILE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n

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Explorer

Output of "zookeeper-env.sh" :

export JAVA_HOME=/usr/jdk64/jdk1.8.0_112
export ZOOKEEPER_HOME=/usr/hdp/current/zookeeper-server
export ZOO_LOG_DIR=/var/log/zookeeper
export ZOOPIDFILE=/var/run/zookeeper/zookeeper_server.pid
export SERVER_JVMFLAGS=-Xmx1024m
export JAVA=$JAVA_HOME/bin/java
export CLASSPATH=$CLASSPATH:/usr/share/zookeeper/*

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Expert Contributor

Ok, ensure you have right permission & ownership of the directory.

/var/log/zookeeper

#ls -lrth /var/log/ | grep zookeeper

drwxr-xr-x. 3 zookeeper hadoop 4.0K Nov 23 13:32 zookeeper

Did you check? after the pattern update.

Ambari -> Zookeeper -> Configs -> Advanced zookeeper-log4j,

..

log4j.appender.ROLLINGFILE.MaxBackupIndex=10

log4j.appender.ROLLINGFILE.layout=org.apache.log4j.PatternLayout log4j.appender.ROLLINGFILE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n

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Explorer

Output of

ls -lrth /var/log/ | grep zookeeper

is

drwxr-xr-x 2 zookeeper hadoop 4.0K نوف 21 16:18 zookeeper

Still nothing in /var/log/zookeeper

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Expert Contributor
@Maryem Mary

It appears some logs got generated. Your directory size is 4KB now.

#ls -lrth /var/log/zookeeper ??

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Explorer

I dont what i have missed but the dir :

/var/log/zookeeper and

/usr/share/zookeeper a

are empty!!

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Contributor

@Sandeep Kumar

I'm heaving the same issue with zookeeper being stopped a few seconds after startup. My problem though is that it seems the changes made to log4j properties through Ambari are not getting propagated. Here the "Advanced zookeeper log4j":

# DEFAULT: console appender only #log4j.rootLogger=INFO, CONSOLE, ROLLINGFILE # Example with rolling log file log4j.rootLogger=DEBUG, CONSOLE, ROLLINGFILE # Example with rolling log file and tracing #log4j.rootLogger=TRACE, CONSOLE, ROLLINGFILE, TRACEFILE # # Log INFO level and above messages to the console # log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender log4j.appender.CONSOLE.Threshold=INFO log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n # # Add ROLLINGFILE to rootLogger to get log file output # Log DEBUG level and above messages to a log file log4j.appender.ROLLINGFILE=org.apache.log4j.RollingFileAppender log4j.appender.ROLLINGFILE.Threshold=DEBUG log4j.appender.ROLLINGFILE.File={{zk_log_dir}}/zookeeper.log # Max log file size of 10MB log4j.appender.ROLLINGFILE.MaxFileSize={{zookeeper_log_max_backup_size}}MB # uncomment the next line to limit number of backup files #log4j.appender.ROLLINGFILE.MaxBackupIndex={{zookeeper_log_number_of_backup_files}} log4j.appender.ROLLINGFILE.layout=org.apache.log4j.PatternLayout log4j.appender.ROLLINGFILE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n # # Add TRACEFILE to rootLogger to get log file output # Log DEBUG level and above messages to a log file log4j.appender.TRACEFILE=org.apache.log4j.FileAppender log4j.appender.TRACEFILE.Threshold=TRACE log4j.appender.TRACEFILE.File=zookeeper_trace.log log4j.appender.TRACEFILE.layout=org.apache.log4j.PatternLayout ### Notice we are including log4j's NDC here (%x) log4j.appender.TRACEFILE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L][%x] - %m%n

But yet ps -ef | grpe zookeper:

zookeep+ 18598 1 4 23:49 ? 00:00:00 /usr/jdk64/jdk1.8.0_112/bin/java -Dzookeeper.log.dir=/xxx/zk/logs -Dzookeeper.log.file=zookeeper-zookeeper-server-xxxxxxxxxxx.log -Dzookeeper.root.logger=INFO,ROLLINGFILE .....

Note that neither DEBUG, nor new log file name (zookeeper.log) have not been propagated by ambari

Is there any property missing?

Thanks,

Alex