There's no need for a couple reasons. First, all child process operations for my "zebra_indexer.pl" (ie checking for records to index and the actual indexing) cause the parent indexing daemon to block (by using waitpid($pid,0)) so there should be no overlapping runs.
Second, even if multiple rebuild_zebra.pl processes were launched magically, the built-in locking in rebuild_zebra.pl would prevent any but the 1st process from running. So it's all good 😃 David Cook Software Engineer Prosentient Systems Suite 7.03 6a Glen St Milsons Point NSW 2061 Australia Office: 02 9212 0899 Online: 02 8005 0595 -----Original Message----- From: Koha-devel <koha-devel-boun...@lists.koha-community.org> On Behalf Of Fridolin SOMERS Sent: Thursday, 7 January 2021 4:01 AM To: koha-devel@lists.koha-community.org Subject: Re: [Koha-devel] Announcing an alternate indexing daemon for Zebra which is more memory efficient Oooh nice. Is there a protection against several launch ? Like in actual daemon --wait-for-lock ? Or is there no need ? Regards, Le 06/01/2021 à 08:50, Josef Moravec a écrit : > Hello David, > > thanks for sharing, it looks great! We are going to test it on one of > our servers. We'll report how things are going probably in few days... > > > Josef > > On Wed, Jan 6, 2021 at 4:28 AM <dc...@prosentient.com.au > <mailto:dc...@prosentient.com.au>> wrote: > > Hi all,____ > > __ __ > > I’ve written a new indexing daemon for Zebra which you can find at > https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=27267 > <https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=27267>. > It’s dead easy to use. Once the daemon is installed, you just need > to update /etc/default/koha-common and you’ll be using it.____ > > __ __ > > It only uses 6MB of RAM (instead of the 170-180MB I’ve seen > rebuild_zebra.pl <http://rebuild_zebra.pl> use in daemon mode), so > it scales well on servers that host many instances of Koha. (For > example, if you have 50 Koha instances on a server, you’ll use 300MB > instead of 9GB for idle Zebra indexing daemons.) That said, this > indexing daemon does launch rebuild_zebra.pl > <http://rebuild_zebra.pl> in non-daemon mode when necessary, so you > still need to have memory available to do actual work. Making > rebuild_zebra.pl <http://rebuild_zebra.pl> more memory efficient is > another task in itself and not a pressing issue atm.____ > > __ __ > > I’m planning to use it shortly myself, but I figured that I would > share it with everyone else, so that everyone else could benefit > from it too. ____ > > __ __ > > Hope others enjoy it as much as I do.____ > > __ __ > > David Cook____ > > Software Engineer____ > > Prosentient Systems____ > > Suite 7.03____ > > 6a Glen St____ > > Milsons Point NSW 2061____ > > Australia____ > > __ __ > > Office: 02 9212 0899____ > > Online: 02 8005 0595____ > > __ __ > > _______________________________________________ > Koha-devel mailing list > Koha-devel@lists.koha-community.org > <mailto:Koha-devel@lists.koha-community.org> > https://lists.koha-community.org/cgi-bin/mailman/listinfo/koha-devel > <https://lists.koha-community.org/cgi-bin/mailman/listinfo/koha-devel> > website : https://www.koha-community.org/ > <https://www.koha-community.org/> > git : https://git.koha-community.org/ <https://git.koha-community.org/> > bugs : https://bugs.koha-community.org/ > <https://bugs.koha-community.org/> > > > > -- > Josef Moravec > josef.mora...@gmail.com <mailto:josef.mora...@gmail.com> > > > _______________________________________________ > Koha-devel mailing list > Koha-devel@lists.koha-community.org > https://lists.koha-community.org/cgi-bin/mailman/listinfo/koha-devel > website : https://www.koha-community.org/ git : > https://git.koha-community.org/ bugs : > https://bugs.koha-community.org/ > -- Fridolin SOMERS <fridolin.som...@biblibre.com> Software and system maintainer 🦄 BibLibre, France _______________________________________________ Koha-devel mailing list Koha-devel@lists.koha-community.org https://lists.koha-community.org/cgi-bin/mailman/listinfo/koha-devel website : https://www.koha-community.org/ git : https://git.koha-community.org/ bugs : https://bugs.koha-community.org/ _______________________________________________ Koha-devel mailing list Koha-devel@lists.koha-community.org https://lists.koha-community.org/cgi-bin/mailman/listinfo/koha-devel website : https://www.koha-community.org/ git : https://git.koha-community.org/ bugs : https://bugs.koha-community.org/
