-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Shawn,
On 9/17/18 17:21, Shawn Heisey wrote: > On 9/17/2018 3:01 PM, Christopher Schultz wrote: >> The basic questions I'd like to have answered on a regular basis >> are: >> >> 1. Is the JVM up (this can be done with a ping, of course) 2. Is >> the heap healthy? Any OOMEs? 3. Will a sample query return in a >> reasonable amount of time? >> >> 1 and 3 are quite easily done using e.g. /solr/[c]/ping, but #2 >> is trickier. I can do this via JMX, but I'd prefer to avoid >> spinning-up a whole JVM just to probe Solr for one or two >> values. > > If your Solr version is at least 5.5.1 and you're NOT on Windows, > number 2 can also be verified by a ping request. Interesting. I did mention 7.4.0 but not my OS. I'm on Debian Linux, and I'm running Solr using the Solr-supplied init.d scripts (via solr install). > With a new enough version on the correct operating system, Solr is > started with an option that will kill the process should an > OutOfMemoryError occur. When that happens, it won't be able to > answer a ping request. > > Here's the issue that fixes a problem with the startup on 5.5.1 or > later: > > https://issues.apache.org/jira/browse/SOLR-8145 Given that, I'll go ahead and set things up to do a simple /solr/[c]/ping request for health-monitoring. Thanks, - -chris -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAlugIGMACgkQHPApP6U8 pFi8YQ//dwJdJG1VtqUgbFI437HzUMhuI+9SBOf0nateQFqQbfoqkLhC/z3dwjvj qqhqcT68D2x1bYYk/5we7KD9I6PZ50mL5sZlU34NYC9AFMB5QEdTtWljlqGM/Xoe elvsKYJVmZn9kvc6iwqyLU71clcRX27NhEDAFrPrCmhgZKRTpNqtgYyEOsIJZ/CL muMml4hV5eNIc+VOle+jcqwTrWY4xtaf6Fmo6NLCsUvC2CB5/QI7JoYzvnLvVVMD IVn6AnsLd/wIVSJiPyVYDA58/pVj1w6Jb36L8eg0fxfoO+eAkObUU3s71QglZlIx m9Qkd8lGQ7qNxUDOMSgPNW/j7tZcxn39FRsM9b3z7kWJGriBcz/S5jX9QSNcArmh pyHIf48y8wOgl/wQsmsGgXsHtdlwJu+84B3sFGjUKQU/2JPO88XJEo+pKluaMFDO E2yZGdTvfRbXLTqe/XCGN89yKyIOKJAX2ZXP9EU0PmFSFbeod6oqbT/MKO3+DzCm PpkUV10vlmqnsJ+5edj89hmM5gJOKcwQTDZ2E/U5tvs4DJHZTG578hnZp1coDU/c m7M80m5SyE/5ycYBODp6oyJNAkEf6suJ+BIyQkr61t9/L7yvwSm80nFheFpVMIMX N/lRL9ar4U/lLDL00aVhDecyNSFOvDjSUBlIlQ4hUb80bZiz3xY= =lOp1 -----END PGP SIGNATURE-----
