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https://issues.apache.org/jira/browse/SOLR-4129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Raintung Li updated SOLR-4129:
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Description:
For many project use the log4j, actually solr use slf logger framework, slf can
easy to integrate with log4j by design.
Solr use log4j-over-slf.jar to handle log4j case.
This jar has some issues.
a. Actually last invoke slf to print the logger (For solr it is JDK14.logging).
b. Not implement all log4j function. ex. Logger.setLevel()
c. JDK14 log miss some function, ex. thread.info, day rolling
Some dependence project had been used log4j that the customer still want to use
it. JDK14 log has many different with Log4j, at least configuration file can't
reuse.
The bad thing is log4j-over-slf.jar conflict with log4j. If use solr, the other
project have to remove log4j.
I think it shouldn't use log4j-over-slf.jar, still reuse log4j if customer want
to use it.
was:
For many project use the log4j, actually solr use slf logger framework, slf can
easy to integrate with log4j.
But solr use log4j-over-slf.jar to handle log4j case.
This jar has some issues.
a. Actually last invoke slf to print the logger (for solr it is JDK14.logging).
b. Not implement all log4j function. ex. Logger.setLevel()
c. JDK14 log miss some function, ex. thread.info, day rolling
Some dependence project had been used log4j that the customer still want to use
it, that exist the configuration file. JDK14 log has many different with Log4j.
The bad thing is log4j-over-slf.jar conflict with log4j. The other project need
remove it log4j.
We shouldn't use log4j-over-slf.jar, still reuse log4j if customer want to use
it.
> Solr doesn't support log4j
> ---------------------------
>
> Key: SOLR-4129
> URL: https://issues.apache.org/jira/browse/SOLR-4129
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 4.0-ALPHA, 4.0-BETA, 4.0
> Reporter: Raintung Li
> Labels: log
>
> For many project use the log4j, actually solr use slf logger framework, slf
> can easy to integrate with log4j by design.
> Solr use log4j-over-slf.jar to handle log4j case.
> This jar has some issues.
> a. Actually last invoke slf to print the logger (For solr it is
> JDK14.logging).
> b. Not implement all log4j function. ex. Logger.setLevel()
> c. JDK14 log miss some function, ex. thread.info, day rolling
> Some dependence project had been used log4j that the customer still want to
> use it. JDK14 log has many different with Log4j, at least configuration file
> can't reuse.
> The bad thing is log4j-over-slf.jar conflict with log4j. If use solr, the
> other project have to remove log4j.
> I think it shouldn't use log4j-over-slf.jar, still reuse log4j if customer
> want to use it.
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