Hi,
I would suggest to report the issue in the Karaf Jira.
Regards
JB
On 09/07/2017 10:49 AM, Lukasz Lech wrote:
Hello!
I’ve managed to identify the problem nearer. The FileOutputStream apparently
was attempting to write onto Karaf console, because after pressing Ctrl+C in
the console, the process un-hanged and I’ve got that log message onto console.
I’d like to report issue, but I’m not sure to which project it belongs,
because there are no clear indicators in stack trace.
Do you have any suggesions? Does it belong to pax-logging? Actually, it’s the
logging system that misbehaves (log calls should never block).
Best regards,
Lukasz Lech
*From:*[email protected] [mailto:[email protected]] *On Behalf Of
*Lukasz Lech
*Sent:* Mittwoch, 6. September 2017 12:01
*To:* [email protected]
*Subject:* pax-logging mysterious blocks in karaf (4.1.0)
Hello,
I’m experiencing mysterious blocks in karaf (version 4.1.0). The method that
experiences the block is FileOutputStream.writeBytes. The block happens
always in the same place: when entity manager tries to log into the database.
I’ve retrieved the ‘stack trace’ with Eclipse connected with remote debugger
to karaf server:
https://i.stack.imgur.com/D7hcz.png
however, I’m unable to retrieve any details (file name, for example).
Karaf.log looks normally, and subsequent log lines appear there, so it doesn’t
look like the issue is writing there. I suppose EntityManager tries to write
to ‘another place’, however my digging into sources lead me to impression, the
logging infrastructure for JPA is provided by server (so karaf, in that case).
I’m using following features:
feature:repo-add mvn:org.apache.aries.jpa/jpa-features/2.5.0/xml/features
feature:install jpa/2.5.0
feature:install transaction-api/1.2.0
feature:install transaction
feature:install eclipselink
feature:install pax-jdbc-config
feature:install pax-jdbc-sqlite
feature:install pax-jdbc-mysql
feature:install pax-jdbc-postgresql
feature:install jersey-karaf-feature/2.2.0
Did I incidentally chosen incompatibile features? Is it a possible windows
issue? (in which case I could ignore this, because production servers are linux).
The issue happens randomly from time to time, restarting karaf helps.
Anybody got similar issues? Where should I look for, where JPA tries to write
logs? The lack of full class names is annoying, but it’s what Eclipse is
showing me…
Best regards,
Lukasz Lech
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