Hi Jim We did some improvements of potential race conditions between features and config admin services. Remember some files in etc are not managed by config admin (for instance startup.properties is used before the services are actually started and not managed by config admin).
Let me try to reproduce your test case and I will let you know. Thanks, Regards JB On Thu, Mar 28, 2024 at 4:48 AM James Ziesig <[email protected]> wrote: > > Hello, > > I have been tracking a problem in recent versions of Karaf where random > configuration files in the etc directory are corrupted (or re-initialized) > during karaf initialization. Most of the times that the problem occurs all > of the property settings are removed from the file, but sometimes the file is > re-initialized with properties in it (just not the values that were present > before startup). This only seems to happen when the apache-karaf-4.x.x/data > directory is cleared out prior to startup (something we do on install/upgrade > or after an ungraceful shutdown). The issue seems to occur 3-5% of the time > that Karaf is re-initialized. > > I have seen https://issues.apache.org/jira/browse/KARAF-6866 which covers an > example of the problem, but doesn't cover all cases. It led me to try a > "fix" where I alter startup.properties to start fileinstall at level 9 so it > starts before configadmin. I have had 100% success with well over 300 > restarts with this configuration, but I don't know if that rearrangement may > lead to some other issue. Is this a valid solution? > > This problem has occurred on various versions of CentOS/RHEL/Rocky Linux > (primarily 8.x). My testing was done on Rocky Linux release 8.9 (Green > Obsidian), using OpenJDK 64-Bit Server VM Temurin-17.0.10+7. > > I have attached a simple bash script for reproduction. > > Reproduction steps: > Extract apache-karaf-4.4.3.tar.gz. > cd apache-karaf-4.4.3 > cp -r etc etc_orig > rm -Rf data/* > bin/start > diff -r -w etc etc_orig/ > check if anything was already overwritten and reset etc with etc_orig if it > was and then repeat until etc looks good. > cp -r etc etc_backup (for use by script) > copy loop.sh to apache-karaf-4.4.3 > execute loop.sh > > Please let me know if you need any additional info. > > Thanks in advance, > > Jim Ziesig > > This electronic communication and the information and any files transmitted > with it, or attached to it, are confidential and are intended solely for the > use of the individual or entity to whom it is addressed and may contain > information that is confidential, legally privileged, protected by privacy > laws, or otherwise restricted from disclosure to anyone else. If you are not > the intended recipient or the person responsible for delivering the e-mail to > the intended recipient, you are hereby notified that any use, copying, > distributing, dissemination, forwarding, printing, or copying of this e-mail > is strictly prohibited. If you received this e-mail in error, please return > the e-mail to the sender, delete it from your computer, and destroy any > printed copy of it.
