Upgrading Debian Packages from Xwiki LTS Tomcat8 to Xwiki LTS Tomcat 9

[GOhrner]

@tmortagne

I don’t see any reason why not since XWiki does not really care much about the application server.

Just installing xwiki-tomcat9-mysql should do the job so I’m surprised you have issues.

Ok, then I’ll have a closer look…

@tmortagne

GOhrner:

One thing I quickly figured out was that the data directory previously belonged to the tomcat8 user, but now has to be owned by the tomcat user (without any version indicator).

This should not be a problem thanks to

# (...)
chown -R tomcat.tomcat /var/lib/xwiki/data
# (...)

Ok, obvious that this didn’t work - my xwiki data directory is somewhere else.

(BTW, why does the syntax chown -R tomcat.tomcat ... work - I didn’t know it and the manpage only seems to document : instead of . to separate username from group. Your syntax also seems to work, though.)

On a second look, Xwiki also still is not happy after I chowned the directory (the need of which was obvious from the first log messages of Xwiki).

It still logs

[2019-12-31 16:05:49] [info] 2019-12-31 16:05:49,263 [main] ERROR o.x.e.i.ServletEnvironment     - Configured permanent directory [/mnt/cstore/var_lib_xwiki/data] is not writable.
[2019-12-31 16:05:49] [info] 2019-12-31 16:05:49,264 [main] WARN  o.x.e.i.ServletEnvironment     - Falling back on [/var/cache/tomcat9/Catalina/localhost/xwiki] as the permanent directory.
[2019-12-31 16:05:49] [info] 2019-12-31 16:05:49,265 [main] INFO  o.x.e.i.ServletEnvironment     - Using permanent directory [/var/cache/tomcat9/Catalina/localhost/xwiki]

Then it’s also clear that Solr cannot find anything meaningful there.

Some googling lead me to Permanent directory is ignored and data is in Tomcat work directory - #7 by g3poandlsl, so apparently I’m not the first one bitten by this…

I’ll try to fix this and report back.