Where are Tomcat application log files stored in Elastic Beanstalk?

Question

Where does Elastic Beanstalk store log output from Tomcat on each EC2 instance?

I've configured SSH and want to tail the log file, but don't know where it's located.

Simplest way to find out: in beanstalk console (AWS management website), go to `Logs`, click `Snapshot Logs`, and the resulting log snapshot will contain the path to all the relevant log files on that machine. — Armand, Sep 04 '13 at 08:41

score 24 · Accepted Answer · answered Dec 03 '12 at 16:29

Something seems to have changed a bit on this, as I have a new Elastic Beanstalk application where the logs are located in:

/var/log/tomcat7/

Note that the easiest way to view stuff in here is to sudo su first, as this directory is owned by root. Whereas, I have an older instance where the logs are in:

/opt/tomcat7/logs/

I'm not sure why there is a disparity in this, as both applications use the tomcat7 container, but this seems to be the state of things to date.

The location was changed in one of the late 2012 AMI updates. — Ken Liu, Apr 06 '13 at 21:15

Ken Liu · Answer 2 · 2013-04-06T21:14:43.830

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By default, AWS Elastic Beanstalk log output from Tomcat is written to /opt/tomcat7/logs/tail_catalina.out. (depends on Tomcat version)

These log messages are written by java.util.logging configured in Tomcat from /opt/tomcat7/conf.

edit: this was changed in late 2012 and now applies only to "Legacy" containers.

edited Apr 06 '13 at 21:14

answered Apr 02 '12 at 16:47

Ken Liu

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There is no folder by the name of `tomcat7` in `/opt` directory of my ec2 instance. – Gaurav Agarwal Jul 03 '12 at 17:43
it depends on the Tomcat version. Maybe you're running Tomcat 6? – Ken Liu Jul 03 '12 at 18:08
Are you sure you're looking at an Elastic Beanstalk instance? You should also see an `elasticbeanstalk` directory in `/opt`. – Ken Liu Jul 04 '12 at 02:57
I realized that I am running on Amazon EC2 and not Elastic beanstalk both must have different folder structure. Sorry for trouble. – Gaurav Agarwal Jul 04 '12 at 09:27
/var/log/tomcat7 seems to be the current location (I just created a new Elastic Beanstalk app) – henning77 Dec 12 '12 at 12:51
see answer from Paul Sanwald – Ken Liu Dec 11 '13 at 20:30

score 4 · Answer 3 · answered Dec 24 '15 at 04:48

4

if you are working on Tomcat7 the you can ind your log at

/var/log/tomcat7

if you are working on tomcat8 then you can find here

/var/log/tomcat8

answered Dec 24 '15 at 04:48

Prakash Gaikwad

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score 3 · Answer 4 · answered Mar 10 '14 at 18:50

as of March 10, 2014, Tomcat 7 versions of Beanstalk log to /var/log/httpd for Apache and /var/log/tomcat7 for Tomcat logs.

-rw-rw---- 1 tomcat tomcat 12444 Mar 10 18:28 catalina.out
-rw-r--r-- 1 tomcat tomcat 13664 Mar 10 18:28 localhost_access_log.txt
-rw-r--r-- 1 tomcat tomcat     0 Feb  6 16:42 tomcat7-initd.log

score 1 · Answer 5 · answered Apr 03 '12 at 03:55

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They are stored in S3 server under the bucket name elasticbeanstalk-us-east-1(region name)-(appno)..

Logs are stored in folders that are organized based on the beanstalk environment name and the directory name would be the ec2-instance's id, that generated the tomcat logs.

answered Apr 03 '12 at 03:55

Sangram Anand

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this is the location to which the log files are rolled, not the location on the actual instances – Ken Liu Oct 02 '12 at 04:33

score 0 · Answer 6 · edited Sep 03 '17 at 04:13

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You can check your Catalina log

cd /usr/local/apache-tomcat7/logs 
tail -f Catalina.out

edited Sep 03 '17 at 04:13

Buddy

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answered Sep 03 '17 at 03:53

vasu001

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Where are Tomcat application log files stored in Elastic Beanstalk?

6 Answers6