How to rotate and archive hdfs-audit log file

[#1]

Hi Team,

I want to rotate and archive(in .gz) hdfs-audit log files on size based but after reaching 350KB of size, the file is not getting archived. The properties I have set in hdfs-log4j is:

hdfs.audit.logger=INFO,console
log4j.logger.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=${hdfs.audit.logger}
log4j.additivity.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=false
#log4j.appender.DRFAAUDIT=org.apache.log4j.DailyRollingFileAppender
log4j.appender.DRFAAUDIT.triggeringPolicy=org.apache.log4j.rolling.SizeBasedTriggeringPolicy
log4j.appender.DRFAAUDIT=org.apache.log4j.RollingFileAppender
log4j.appender.DRFAAUDIT.File=${hadoop.log.dir}/hdfs-audit.log
log4j.appender.DRFAAUDIT.rollingPolicy.FileNamePattern=hdfs-audit-%d{yyyy-MM}.gz
log4j.appender.DRFAAUDIT.layout=org.apache.log4j.PatternLayout
log4j.appender.DRFAAUDIT.layout.ConversionPattern=%d{ISO8601} %p %c{2}: %m%n
log4j.appender.DRFAAUDIT.DatePattern=.yyyy-MM-dd
log4j.appender.DRFAAUDIT.MaxFileSize=350KB
log4j.appender.DRFAAUDIT.MaxBackupIndex=9

Any help will be highly appreciated.

[#2]

@Rahul Buragohain

Please check - https://community.hortonworks.com/articles/8882/how-to-control-size-of-log-files-for-various-hdp-c.h...

It should be set to "RollingFileAppender" to get this working.

Here is good example - http://apprize.info/security/hadoop/7.html

[#3]

@Sagar Shimpi

I checked the above links but I didn't find how to compress and zip the log file automatically if it reaches the specified MaxFileSize. I need to compress the log files and keep it upto 30days which after then should get deleted automatically. So what are the additional properties should I need to add to make .gz files for hdfs-audit logs??

At present my property is set as:

hdfs.audit.logger=INFO,console
log4j.logger.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=${hdfs.audit.logger}
log4j.additivity.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=false
log4j.appender.DRFAAUDIT=org.apache.log4j.RollingFileAppender
log4j.appender.DRFAAUDIT.File=${hadoop.log.dir}/hdfs-audit.log
log4j.appender.DRFAAUDIT.layout=org.apache.log4j.PatternLayout
log4j.appender.DRFAAUDIT.layout.ConversionPattern=%d{ISO8601} %p %c{2}: %m%n
log4j.appender.DRFAAUDIT.DatePattern=.yyyy-MM-dd
log4j.appender.DRFAAUDIT.MaxFileSize=1GB
log4j.appender.DRFAAUDIT.MaxBackupIndex=30

[#4]

@Rahul Buragohain

It should be RFAAUDIT instead of DRFAAUDIT. Please check screenshot below -

[#5]

Please check link for more details -http://apprize.info/security/hadoop/7.html

[#6 · Accepted solution]

Hi Team and @Sagar Shimpi,

The below steps helped me to resolve the issue.

1) As I am using HDP-2.4.2, so I need to download the jar from http://www.apache.org/dyn/closer.cgi/logging/log4j/extras/1.2.17/apache-log4j-extras-1.2.17-bin.tar....

2) Extract the tar file and copy apache-log4j-extras-1.2.17.jar to ALL the cluster nodes in /usr/hdp/<version>/hadoop-hdfs/lib location.

Note: Also you can find apache-log4j-extras-1.2.17.jar in /usr/hdp/<version>/hive/lib folder. I found it later.

3) Then edit in advanced hdfs-log4j property from ambari and replace the default hdfs-audit log4j properties as

hdfs.audit.logger=INFO,console
log4j.logger.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=${hdfs.audit.logger}
log4j.additivity.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=false
log4j.appender.DRFAAUDIT=org.apache.log4j.rolling.RollingFileAppender
log4j.appender.DRFAAUDIT.File=${hadoop.log.dir}/hdfs-audit.log
log4j.appender.DRFAAUDIT.layout=org.apache.log4j.PatternLayout
log4j.appender.DRFAAUDIT.layout.ConversionPattern=%d{ISO8601} %p %c: %m%
log4j.appender.DRFAAUDIT.rollingPolicy=org.apache.log4j.rolling.FixedWindowRollingPolicy
log4j.appender.DRFAAUDIT.rollingPolicy.maxIndex=30
log4j.appender.DRFAAUDIT.triggeringPolicy=org.apache.log4j.rolling.SizeBasedTriggeringPolicy
log4j.appender.DRFAAUDIT.triggeringPolicy.MaxFileSize=16106127360
## The figure 16106127360 is in bytes which is equal to 15GB ##
log4j.appender.DRFAAUDIT.rollingPolicy.ActiveFileName=${hadoop.log.dir}/hdfs-audit.log
log4j.appender.DRFAAUDIT.rollingPolicy.FileNamePattern=${hadoop.log.dir}/hdfs-audit-%i.log.gz

The output of the hdfs audit log files in .gz are:

-rw-r--r-- 1 hdfs hadoop 384M Jan 28 23:51 hdfs-audit-2.log.gz
-rw-r--r-- 1 hdfs hadoop 347M Jan 29 07:40 hdfs-audit-1.log.gz

[#7]

Can you confirm if the below settings have achieved the purpose in subject?

1. hdfs.audit.logger=INFO,console
2. log4j.logger.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=${hdfs.audit.logger}
3. log4j.additivity.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=false
4. log4j.appender.DRFAAUDIT=org.apache.log4j.rolling.RollingFileAppender
5. log4j.appender.DRFAAUDIT.File=${hadoop.log.dir}/hdfs-audit.log
6. log4j.appender.DRFAAUDIT.layout=org.apache.log4j.PatternLayout
7. log4j.appender.DRFAAUDIT.layout.ConversionPattern=%d{ISO8601}%p %c:%m%
8. log4j.appender.DRFAAUDIT.rollingPolicy=org.apache.log4j.rolling.FixedWindowRollingPolicy
9. log4j.appender.DRFAAUDIT.rollingPolicy.maxIndex=30
10. log4j.appender.DRFAAUDIT.triggeringPolicy=org.apache.log4j.rolling.SizeBasedTriggeringPolicy
11. log4j.appender.DRFAAUDIT.triggeringPolicy.MaxFileSize=16106127360
12. ## The figure 16106127360 is in bytes which is equal to 15GB ##
13. log4j.appender.DRFAAUDIT.rollingPolicy.ActiveFileName=${hadoop.log.dir}/hdfs-audit.log
14. log4j.appender.DRFAAUDIT.rollingPolicy.FileNamePattern=${hadoop.log.dir}/hdfs-audit-%i.log.gz

[#8]

@English Rose

Yes I confirm that the settings which I mentioned is working properly.

[#9]

Thanks @Rahul Buragohain few more clarifications pls

1. If i want to avoid the 30 day limit I should not be using FixedWindowRollingPolicy/max Index and SizeBasedTriggeringPolic/Max file size if am correct?

2. I know am being a bit greedy here, do you know of any other inbuilt process to archive/move the the zipped logs to HDFS/other location instead of deleting them(yes I can write a script , but checking if I am missing on any existing appenders/policies

[#10]

@Rahul Buragohain also could you please explain about rolling.RollingFileAppender?