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log4j2 in Tomcat 8: Unexpected log rotation

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0

I tried to fix a log rotation problem with log4j2 in a webapp running on Apache Tomcat/8.0.32 (Ubuntu) on Ubuntu 16.04.4 (see related stackoverflow question).
Tomcat runs on OracleJRE 1.8.0_181.

I switched the complete Apache Tomcat installation von Tomcat's implementation of java.utils.logging (Tomcat JULI) to log4j2: Log4j App Server Integration.

It works fine, but I have the issue that affected the webapp now affects Tomcat too. The log files seems to be rotated and packed with gzip at midnight, but no new log files are created. The log files are written at /var/log/tomcat8/.

I expect that it's rather a system process that rotates the log files than a Tomcat bug. The server uses systemd, with systemd-tmpfiles-clean.timer activated and rsyslog.service enabled and running.

Does systemd-tmpfiles-clean.timer rotates the log files or does another system process rotate the logs? If yes, how I can exclude the directory /var/log/tomcat8/ from the process's log rotation?

EDIT: logrotate config files

/etc/logrotate.conf

# use the syslog group by default, since this is the owning group
# of /var/log/syslog.
su root syslog

# keep 4 weeks worth of backlogs
rotate 4

# create new (empty) log files after rotating old ones
create

# uncomment this if you want your log files compressed
#compress

# packages drop log rotation information into this directory
include /etc/logrotate.d

# no packages own wtmp, or btmp -- we'll rotate them here
/var/log/wtmp 
 missingok
 monthly
 create 0664 root utmp
 rotate 1


/var/log/btmp 
 missingok
 monthly
 create 0660 root utmp
 rotate 1

/etc/logrotate.d/tomcat8

/var/log/tomcat8/catalina.out 
 copytruncate
 weekly
 rotate 52
 compress
 missingok
 create 640 tomcat8 adm

Edit: The administrator reconfigured logrotate (unfortunately without an explanation what he has done) and this issue disappeared.

logging ubuntu-16.04 tomcat8

share|improve this question

edited May 2 at 6:16

fireandfuel

asked Feb 22 at 10:40

fireandfuelfireandfuel

1012

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What does the logrotate config look like?
  
  – Jenny D
  Feb 22 at 10:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  added the logrotate configs
  
  – fireandfuel
  Feb 22 at 11:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You wrote in the question that files are in /var/log/tomcat, but the logrotate config only mentions /var/log/tomcat8. Is there any logrotate config that contains either /var/log/tomcat/ or /var/log/*/?
  
  – Jenny D
  Feb 22 at 13:10
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ups, I corrected the path in the question, it's /var/log/tomcat8, not /var/log/tomcat
  
  – fireandfuel
  Feb 22 at 19:29
  

  
  
  
  

add a comment | 

0

I tried to fix a log rotation problem with log4j2 in a webapp running on Apache Tomcat/8.0.32 (Ubuntu) on Ubuntu 16.04.4 (see related stackoverflow question).
Tomcat runs on OracleJRE 1.8.0_181.

I switched the complete Apache Tomcat installation von Tomcat's implementation of java.utils.logging (Tomcat JULI) to log4j2: Log4j App Server Integration.

It works fine, but I have the issue that affected the webapp now affects Tomcat too. The log files seems to be rotated and packed with gzip at midnight, but no new log files are created. The log files are written at /var/log/tomcat8/.

I expect that it's rather a system process that rotates the log files than a Tomcat bug. The server uses systemd, with systemd-tmpfiles-clean.timer activated and rsyslog.service enabled and running.

Does systemd-tmpfiles-clean.timer rotates the log files or does another system process rotate the logs? If yes, how I can exclude the directory /var/log/tomcat8/ from the process's log rotation?

EDIT: logrotate config files

/etc/logrotate.conf

# use the syslog group by default, since this is the owning group
# of /var/log/syslog.
su root syslog

# keep 4 weeks worth of backlogs
rotate 4

# create new (empty) log files after rotating old ones
create

# uncomment this if you want your log files compressed
#compress

# packages drop log rotation information into this directory
include /etc/logrotate.d

# no packages own wtmp, or btmp -- we'll rotate them here
/var/log/wtmp 
 missingok
 monthly
 create 0664 root utmp
 rotate 1


/var/log/btmp 
 missingok
 monthly
 create 0660 root utmp
 rotate 1

/etc/logrotate.d/tomcat8

/var/log/tomcat8/catalina.out 
 copytruncate
 weekly
 rotate 52
 compress
 missingok
 create 640 tomcat8 adm

Edit: The administrator reconfigured logrotate (unfortunately without an explanation what he has done) and this issue disappeared.

logging ubuntu-16.04 tomcat8

share|improve this question

edited May 2 at 6:16

fireandfuel

asked Feb 22 at 10:40

fireandfuelfireandfuel

1012

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What does the logrotate config look like?
  
  – Jenny D
  Feb 22 at 10:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  added the logrotate configs
  
  – fireandfuel
  Feb 22 at 11:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You wrote in the question that files are in /var/log/tomcat, but the logrotate config only mentions /var/log/tomcat8. Is there any logrotate config that contains either /var/log/tomcat/ or /var/log/*/?
  
  – Jenny D
  Feb 22 at 13:10
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ups, I corrected the path in the question, it's /var/log/tomcat8, not /var/log/tomcat
  
  – fireandfuel
  Feb 22 at 19:29
  

  
  
  
  

add a comment | 

I tried to fix a log rotation problem with log4j2 in a webapp running on Apache Tomcat/8.0.32 (Ubuntu) on Ubuntu 16.04.4 (see related stackoverflow question).
Tomcat runs on OracleJRE 1.8.0_181.

I switched the complete Apache Tomcat installation von Tomcat's implementation of java.utils.logging (Tomcat JULI) to log4j2: Log4j App Server Integration.

It works fine, but I have the issue that affected the webapp now affects Tomcat too. The log files seems to be rotated and packed with gzip at midnight, but no new log files are created. The log files are written at /var/log/tomcat8/.

I expect that it's rather a system process that rotates the log files than a Tomcat bug. The server uses systemd, with systemd-tmpfiles-clean.timer activated and rsyslog.service enabled and running.

Does systemd-tmpfiles-clean.timer rotates the log files or does another system process rotate the logs? If yes, how I can exclude the directory /var/log/tomcat8/ from the process's log rotation?

EDIT: logrotate config files

/etc/logrotate.conf

# use the syslog group by default, since this is the owning group
# of /var/log/syslog.
su root syslog

# keep 4 weeks worth of backlogs
rotate 4

# create new (empty) log files after rotating old ones
create

# uncomment this if you want your log files compressed
#compress

# packages drop log rotation information into this directory
include /etc/logrotate.d

# no packages own wtmp, or btmp -- we'll rotate them here
/var/log/wtmp 
 missingok
 monthly
 create 0664 root utmp
 rotate 1


/var/log/btmp 
 missingok
 monthly
 create 0660 root utmp
 rotate 1

/etc/logrotate.d/tomcat8

/var/log/tomcat8/catalina.out 
 copytruncate
 weekly
 rotate 52
 compress
 missingok
 create 640 tomcat8 adm

Edit: The administrator reconfigured logrotate (unfortunately without an explanation what he has done) and this issue disappeared.

logging ubuntu-16.04 tomcat8

share|improve this question

edited May 2 at 6:16

fireandfuel

asked Feb 22 at 10:40

fireandfuelfireandfuel

1012

# use the syslog group by default, since this is the owning group
# of /var/log/syslog.
su root syslog

# keep 4 weeks worth of backlogs
rotate 4

# create new (empty) log files after rotating old ones
create

# uncomment this if you want your log files compressed
#compress

# packages drop log rotation information into this directory
include /etc/logrotate.d

# no packages own wtmp, or btmp -- we'll rotate them here
/var/log/wtmp 
 missingok
 monthly
 create 0664 root utmp
 rotate 1


/var/log/btmp 
 missingok
 monthly
 create 0660 root utmp
 rotate 1

/var/log/tomcat8/catalina.out 
 copytruncate
 weekly
 rotate 52
 compress
 missingok
 create 640 tomcat8 adm

share|improve this question

edited May 2 at 6:16

fireandfuel

asked Feb 22 at 10:40

fireandfuelfireandfuel

1012

share|improve this question

edited May 2 at 6:16

fireandfuel

asked Feb 22 at 10:40

fireandfuelfireandfuel

1012

asked Feb 22 at 10:40

fireandfuelfireandfuel

1012

asked Feb 22 at 10:40

fireandfuelfireandfuel

1012