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https://issues.apache.org/jira/browse/LOG4J2-1766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16060786#comment-16060786
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ASF GitHub Bot commented on LOG4J2-1766:
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GitHub user phymbert opened a pull request:
https://github.com/apache/logging-log4j2/pull/86
[LOG4J2-1766] Temporary archived file pattern during compression
Rebased patch onto master, added documentation
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/phymbert/logging-log4j2 LOG4J2-1766
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/logging-log4j2/pull/86.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #86
----
commit af4d3ddd18babe29f3983f83631b36d987cd022c
Author: phymbert <[email protected]>
Date: 2017-06-23T11:49:43Z
[LOG4J2-1766] Rebase onto master from original jira patch.
Signed-off-by: phymbert <[email protected]>
commit 33d3cf58b7c5da790170469e6e77e0680c49b934
Author: phymbert <[email protected]>
Date: 2017-06-23T11:50:24Z
[LOG4J2-1766] Documentation of compressTmpFilePattern
DefaultRolloverStrategy parameter.
Signed-off-by: phymbert <[email protected]>
commit e583d1ef653569fd97b57a5d156a370396e1116f
Author: phymbert <[email protected]>
Date: 2017-06-23T11:54:58Z
[LOG4J2-1766] Little formating.
Signed-off-by: phymbert <[email protected]>
----
> Distinguish between partial and completed .gz archive file
> ----------------------------------------------------------
>
> Key: LOG4J2-1766
> URL: https://issues.apache.org/jira/browse/LOG4J2-1766
> Project: Log4j 2
> Issue Type: New Feature
> Affects Versions: 2.5
> Reporter: Sameer Pradhan
> Labels: features
>
> I have the following log configuration.
> <RollingRandomAccessFile name="RollingReqAppender"
> fileName="/usr/test/req.log"
> filePattern="/usr/test/req.log.%d{yyyy-MM-dd-HH}.%i.gz"
> immediateFlush="true" append="true">
> <PatternLayout>
> <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS Z}%m%n</Pattern>
> </PatternLayout>
> <Policies>
> <SizeBasedTriggeringPolicy size="500 MB"/>
> <TimeBasedTriggeringPolicy interval="1" modulate="true" />
> </Policies>
> </RollingRandomAccessFile>
> When the log is rolled over (based on time or size), it is gzipped. Gzipping
> the file takes some time (seconds to minutes depending on load). The problem
> is that the file is gzipped in place, and while it is being gzipped, the
> partially gzipped file is stored in the same folder with the same name as the
> final gzip file. e.g.: /usr/test/req.log.2017-01-03-02.1.gz
> This causes problems for the file's consumer, which attempts to process the
> partial file. I want to be able to distinguish between a partial gzipped file
> and a completed gzipped file. For example, I would like to setup a
> configuration that while the file is being gzipped, it is written with a
> different name e.g.: /usr/test/req.log.2017-01-03-02.1.gz.temp and once it is
> completely gzipped the name is changed to the final name
> /usr/test/req.log.2017-01-03-02.1.gz
> One way to achieve this is to add a new parameter like
> "temporaryCompressedFilePattern" as follows:
> <RollingRandomAccessFile name="RollingReqAppender"
> fileName="/usr/test/req.log"
> filePattern="/usr/test/req.log.%d{yyyy-MM-dd-HH}.%i.gz"
>
> temporaryCompressedFilePattern="/usr/test/req.log.%d{yyyy-MM-dd-HH}.%i.gz.temp"
> Another option is to make such behavior the default behavior without adding a
> new parameter.
>
> This was first discussed at
> http://stackoverflow.com/questions/41457492/partial-gz-file-written-by-log4j2
> Creating this feature request as suggested by @rpopma
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