RE: Script to check if solr is running

I agree with the systemd guys if you’re unfamiliar with scripting this sort of thing. I’d wind up with piping through awk and grep and the like, which is as clear as mud if you don’t already know it. Might as well learn and use the modern tools if you can. We have an old-school hard division

Re: Script to check if solr is running

> > Why have a cold backup and then switch? > my current set up is: 1. master indexer 2. master slave on a release/commit basis 3. 3 live slave searching nodes in two data different centers the three live nodes are in front of nginx load balancing and they are mostly hot but not all of them, i

Re: Script to check if solr is running

I could write a script, too, though I’d do it with straight shell code. But then I’d have to test it, check it in somewhere, document it for ops, install it, ... Instead, when we switch from monit, I'll start with one of these systemd configs.

Re: Script to check if solr is running

A simple Perl script would be able to cover this, I have a cron job Perl script that does a search with an expected result, if the result isn’t there it fails over to a backup search server, sends me an email, and I fix what’s wrong. The backup search server is a direct clone of the live server

Re: Script to check if solr is running

Use the solution described by Walter. This allows you to automatically restart in case of failure and is also cleaner than defining a cronjob. Otherwise This would be another dependency one needs to keep in mind - means if there is an issue and someone does not know the system the person has to

Re: Script to check if solr is running

"A simple cronjob with /bin/solr status and /bin/solr start should do the trick." I don't know what that would look like. Wouldn't the job have to check the status and only give the start command if solr isn't running? I don't think it's possible to put logic in a cron job. I think it would

RE: Script to check if solr is running

A simple cronjob with /bin/solr status and /bin/solr start should do the trick. There must be a Windows equivalent if that’s what you’re using. From: Ryan W Sent: Thursday, June 4, 2020 11:39 AM To: solr-user@lucene.apache.org Subject: Re: Script to check if solr is running WARNING: This

Re: Script to check if solr is running

Most Linux distros are using systemd to manage server processes. https://en.wikipedia.org/wiki/Systemd wunder Walter Underwood wun...@wunderwood.org http://observer.wunderwood.org/ (my blog) > On Jun 5, 2020, at 8:08 AM, Mark H. Wood wrote: > > On Thu,

Re: Script to check if solr is running

On Thu, Jun 04, 2020 at 12:36:30PM -0400, Ryan W wrote: > Does anyone have a script that checks if solr is running and then starts it > if it isn't running? Occasionally my solr stops running even if there has > been no Apache restart. I haven't been able to determine the root cause, > so the

Re: Script to check if solr is running

Fixing the root cause would certainly be the best thing.However if you still wanna tread that path, you can do a healthchek on admin endpoint and do the thing. A simple cron job would do trick On Thu, 4 Jun 2020 at 10:09 PM, Ryan W wrote: > Or is it not much overhead to give the command to

Re: Script to check if solr is running

Or is it not much overhead to give the command to start solr if it is already running? Maybe it's not necessary to check if it's running? Is there any downside to giving the start command every 15 minutes or so whether it is running or not? Thanks. On Thu, Jun 4, 2020 at 12:36 PM Ryan W

Script to check if solr is running

Does anyone have a script that checks if solr is running and then starts it if it isn't running? Occasionally my solr stops running even if there has been no Apache restart. I haven't been able to determine the root cause, so the next best thing might be to check every 15 minutes or so if it's