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https://issues.apache.org/jira/browse/LOG4J2-1754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15783864#comment-15783864
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prayagupd commented on LOG4J2-1754:
-----------------------------------
Right, I have seen the issue with log4j 1.x too. And I am talking about log4j
`rolling file` here, not the linux `logrotiation`. I don't know the log4j
rolling logic, probably it uses java File handeling api.
> Multiple log files being created for rolling log4j2 conf in IBM Websphere
> -------------------------------------------------------------------------
>
> Key: LOG4J2-1754
> URL: https://issues.apache.org/jira/browse/LOG4J2-1754
> Project: Log4j 2
> Issue Type: Question
> Components: Appenders
> Affects Versions: 2.5, 2.6.2
> Environment: IBM Websphere,
> java-1.8.0-ibm-1.8.0.3.20-1,
> IBM Iseries,
> log4j2 2.5, log4j 2.6.2
> Reporter: prayagupd
>
> When I am testing my logs in IBM server with websphere 8, I see multiple log
> files created at the same time, I don't know what's the logic behind it. My
> logrotate config is for 100MB upto 10 files.
> My config is
> {code}
> {
> "configuration": {
> "name": "logggg",
> "appenders": {
> "RollingFile": {
> "name": "rollingFile",
> "fileName": "/var/log/app/test_logging.log",
> "filePattern": "/var/log/app/test_logging.log.%i",
> "JSONLayout": {
> "complete": false,
> "compact": true,
> "eventEol": true
> },
> "SizeBasedTriggeringPolicy": {
> "size": "100 MB"
> },
> "DefaultRolloverStrategy": {
> "max": "10"
> }
> }
> },
> "loggers": {
> "root": {
> "level": "DEBUG",
> "appender-ref": {
> "ref": "rollingFile"
> }
> }
> }
> }
> }
> {code}
> I haven't seen this problem in Tomcat on Linux server.
> Example, there's test_logging.log, test_logging.log.1 and test_logging.log.12
> less than 100M
> total 82768
> -rw-rw-r-x. 1 4294770729 root 682037 Dec 28 12:30 test_logging.log
> -rw-rw-r-x. 1 4294770729 root 9513 Dec 28 12:26 test_logging12.log.1
> -rw-rw-r-x. 1 4294770729 root 10491159 Dec 28 10:56 test_logging12.log.10
> -rw-rw-r-x. 1 4294770729 root 10510210 Dec 28 12:26 test_logging12.log.2
> -rw-rw-r-x. 1 4294770729 root 10493793 Dec 28 12:07 test_logging12.log.3
> -rw-rw-r-x. 1 4294770729 root 10489715 Dec 28 11:56 test_logging12.log.4
> -rw-rw-r-x. 1 4294770729 root 10487367 Dec 28 11:50 test_logging12.log.5
> -rw-rw-r-x. 1 4294770729 root 7804 Dec 28 11:33 test_logging12.log.6
> -rw-rw-r-x. 1 4294770729 root 10493965 Dec 28 11:33 test_logging12.log.7
> -rw-rw-r-x. 1 4294770729 root 10485761 Dec 28 11:21 test_logging12.log.8
> -rw-rw-r-x. 1 4294770729 root 10486961 Dec 28 11:10 test_logging12.log.9
> $ cat test_logging.log | wc -l
> 3161
> $ cat test_logging.log.1 | wc -l
> 14
> $ cat test_logging.log.6 | wc -l
> 14
> After 10 mins, I see it only appending to the test_logging.log.
> total 88560
> 70 -rw-rw-r-x. 1 4294770729 root 6612026 Dec 28 12:40 test_logging.log
> 69 -rw-rw-r-x. 1 4294770729 root 9513 Dec 28 12:26 test_logging.log.1
> 48 -rw-rw-r-x. 1 4294770729 root 10491159 Dec 28 10:56 test_logging.log.10
> 52 -rw-rw-r-x. 1 4294770729 root 10510210 Dec 28 12:26 test_logging.log.2
> 56 -rw-rw-r-x. 1 4294770729 root 10493793 Dec 28 12:07 test_logging.log.3
> 45 -rw-rw-r-x. 1 4294770729 root 10489715 Dec 28 11:56 test_logging.log.4
> 43 -rw-rw-r-x. 1 4294770729 root 10487367 Dec 28 11:50 test_logging.log.5
> 67 -rw-rw-r-x. 1 4294770729 root 7804 Dec 28 11:33 test_logging.log.6
> 39 -rw-rw-r-x. 1 4294770729 root 10493965 Dec 28 11:33 test_logging.log.7
> 68 -rw-rw-r-x. 1 4294770729 root 10485761 Dec 28 11:21 test_logging.log.8
> 59 -rw-rw-r-x. 1 4294770729 root 10486961 Dec 28 11:10 test_logging.log.9
> Actually the application was up and running in production with log4j 1.x, so
> the issue is the previous versions as well.
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