On 6/3/2018 7:52 AM, Nawab Zada Asad Iqbal wrote:
I am running a batch indexing job and Solr core mysteriously shut down
without any particular error. How can I investigate this? I am focusing on
the line which mentions "Shutting down CoreContainer instance".
There are errors soon after that, but they seemed to be caused by the core
shutting down and not the other way round; although i can be wrong.
Crashes in Solr are extremely rare. If it actually does happen, it
would probably be caused by severe issues with Java or the operating
system, or hardware problems like failing memory chips.
If you've got a recent version of Solr and it's running on an OS that's
NOT Windows, then an OutOfMemoryError is likely going to result in Solr
being killed. But if that happens, all logging stops -- Solr will not
log anything about the CoreContainer shutting down.
The most likely cause here is that something triggered the shutdown hook
in Solr, which caused an orderly shutdown of the CoreContainer, so you
got that log message. In a nutshell, Solr shut down because something
external explicitly told it to shut down.
Can you share the entire solr.log file? I can't guarantee that the file
will have anything in it that explains what went wrong, but we can look.
Thanks,
Shawn
