- Koha-devel - lists.koha-community.org

oom-killer / Out of memory: Killed process 1026641 (/usr/share/koha)
by Michael Kuhn 18 Mar '25

18 Mar '25

Hi Our host "bib" owns 4 virtual CPU, 8 GB RAM and 18 GB swap space. It runs on Debian GNU/Linux 12 with Koha 24.05.01 and around 78'000 bibliographic records. Since some time Koha sporadically just stops (today already twice), in such cases log file "/var/log/syslog" contains messages as attached at the end of this e-mail (the "oom-killer" is not always invoked by memcached). The messages say the host is out of memory so the Koha process was killed... I have already increased the swap space from 2 GB to 18 GB but to no avail. How can we find out what is consuming so much memory causing Koha to get killed? How can we avoid this? Best wishes: Michael -- Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz T 0041 (0)61 261 55 61 · E mik(a)adminkuhn.ch · W www.adminkuhn.ch 2025-03-10T12:48:00.668764+01:00 bib kernel: [769596.762201] memcached invoked oom-killer: gfp_mask=0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), order=0, oom_score_adj=0 2025-03-10T12:48:00.670036+01:00 bib kernel: [769596.762885] CPU: 3 PID: 2332685 Comm: memcached Not tainted 6.1.0-31-amd64 #1 Debian 6.1.128-1 2025-03-10T12:48:00.670038+01:00 bib kernel: [769596.763487] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 2025-03-10T12:48:00.670039+01:00 bib kernel: [769596.764019] Call Trace: 2025-03-10T12:48:00.670039+01:00 bib kernel: [769596.764528] <TASK> 2025-03-10T12:48:00.670040+01:00 bib kernel: [769596.765027] dump_stack_lvl+0x44/0x5c 2025-03-10T12:48:00.670040+01:00 bib kernel: [769596.765539] dump_header+0x4a/0x211 2025-03-10T12:48:00.670041+01:00 bib kernel: [769596.766045] oom_kill_process.cold+0xb/0x10 2025-03-10T12:48:00.670041+01:00 bib kernel: [769596.766535] out_of_memory+0x1fd/0x4c0 2025-03-10T12:48:00.670042+01:00 bib kernel: [769596.767046] __alloc_pages_slowpath.constprop.0+0xc83/0xe40 2025-03-10T12:48:00.670042+01:00 bib kernel: [769596.767537] __alloc_pages+0x305/0x330 2025-03-10T12:48:00.670043+01:00 bib kernel: [769596.768014] folio_alloc+0x17/0x50 2025-03-10T12:48:00.670043+01:00 bib kernel: [769596.768499] __filemap_get_folio+0x155/0x340 2025-03-10T12:48:00.670044+01:00 bib kernel: [769596.768967] filemap_fault+0x139/0x910 2025-03-10T12:48:00.670044+01:00 bib kernel: [769596.769395] ? filemap_map_pages+0x153/0x700 2025-03-10T12:48:00.670044+01:00 bib kernel: [769596.769820] __do_fault+0x33/0x110 2025-03-10T12:48:00.670045+01:00 bib kernel: [769596.770303] do_fault+0x1b9/0x410 2025-03-10T12:48:00.670157+01:00 bib kernel: [769596.770734] __handle_mm_fault+0x660/0xfa0 2025-03-10T12:48:00.670298+01:00 bib kernel: [769596.771189] handle_mm_fault+0xdb/0x2d0 2025-03-10T12:48:00.670299+01:00 bib kernel: [769596.771594] do_user_addr_fault+0x191/0x550 2025-03-10T12:48:00.670300+01:00 bib kernel: [769596.771982] exc_page_fault+0x70/0x170 2025-03-10T12:48:00.670300+01:00 bib kernel: [769596.772411] asm_exc_page_fault+0x22/0x30 2025-03-10T12:48:00.670301+01:00 bib kernel: [769596.772829] RIP: 0033:0x557b12827140 2025-03-10T12:48:00.670302+01:00 bib kernel: [769596.773207] Code: Unable to access opcode bytes at 0x557b12827116. 2025-03-10T12:48:00.670302+01:00 bib kernel: [769596.773589] RSP: 002b:00007ffc7f74a9c8 EFLAGS: 00010246 2025-03-10T12:48:00.670303+01:00 bib kernel: [769596.773991] RAX: 00007fc1802bd440 RBX: 0000557b44749ac0 RCX: 0000000000000669 2025-03-10T12:48:00.670303+01:00 bib kernel: [769596.774387] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000ffffffff 2025-03-10T12:48:00.670303+01:00 bib kernel: [769596.774723] RBP: 0000000000000001 R08: 0000557b12827140 R09: 00007fc1802dd000 2025-03-10T12:48:00.670304+01:00 bib kernel: [769596.775111] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 2025-03-10T12:48:00.670305+01:00 bib kernel: [769596.775506] R13: 0000000000000000 R14: 000000007fffffff R15: 0000557b1285cb80 2025-03-10T12:48:00.670305+01:00 bib kernel: [769596.775831] </TASK> 2025-03-10T12:48:00.670305+01:00 bib kernel: [769596.776226] Mem-Info: 2025-03-10T12:48:00.670365+01:00 bib kernel: [769596.776592] active_anon:550829 inactive_anon:1391840 isolated_anon:0 2025-03-10T12:48:00.670366+01:00 bib kernel: [769596.776592] active_file:0 inactive_file:94 isolated_file:0 2025-03-10T12:48:00.670366+01:00 bib kernel: [769596.776592] unevictable:0 dirty:0 writeback:0 2025-03-10T12:48:00.670367+01:00 bib kernel: [769596.776592] slab_reclaimable:9935 slab_unreclaimable:13188 2025-03-10T12:48:00.670367+01:00 bib kernel: [769596.776592] mapped:1134 shmem:5697 pagetables:5740 2025-03-10T12:48:00.670367+01:00 bib kernel: [769596.776592] sec_pagetables:0 bounce:0 2025-03-10T12:48:00.670368+01:00 bib kernel: [769596.776592] kernel_misc_reclaimable:0 2025-03-10T12:48:00.670368+01:00 bib kernel: [769596.776592] free:25298 free_pcp:0 free_cma:0 2025-03-10T12:48:00.670368+01:00 bib kernel: [769596.789186] Node 0 active_anon:2203316kB inactive_anon:5567360kB active_file:80kB inactive_file:156kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:4536kB dirty:0kB writeback:0kB shmem:22788kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 876544kB writeback_tmp:0kB kernel_stack:9056kB pagetables:22960kB sec_pagetables:0kB all_unreclaimable? no 2025-03-10T12:48:00.670369+01:00 bib kernel: [769596.790069] Node 0 DMA free:14336kB boost:0kB min:128kB low:160kB high:192kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB 2025-03-10T12:48:00.670370+01:00 bib kernel: [769596.790924] lowmem_reserve[]: 0 2899 7843 7843 7843 2025-03-10T12:48:00.670370+01:00 bib kernel: [769596.791252] Node 0 DMA32 free:44376kB boost:0kB min:24936kB low:31168kB high:37400kB reserved_highatomic:0KB active_anon:842432kB inactive_anon:2119316kB active_file:0kB inactive_file:84kB unevictable:0kB writepending:0kB present:3129196kB managed:3018408kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB 2025-03-10T12:48:00.670370+01:00 bib kernel: [769596.792175] lowmem_reserve[]: 0 0 4943 4943 4943 2025-03-10T12:48:00.670371+01:00 bib kernel: [769596.792455] Node 0 Normal free:42480kB boost:0kB min:42516kB low:53144kB high:63772kB reserved_highatomic:0KB active_anon:1360884kB inactive_anon:3447664kB active_file:120kB inactive_file:0kB unevictable:0kB writepending:0kB present:5242880kB managed:5062604kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB 2025-03-10T12:48:00.670371+01:00 bib kernel: [769596.793398] lowmem_reserve[]: 0 0 0 0 0 2025-03-10T12:48:00.670372+01:00 bib kernel: [769596.793716] Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 3*4096kB (M) = 14336kB 2025-03-10T12:48:00.670372+01:00 bib kernel: [769596.794404] Node 0 DMA32: 115*4kB (UME) 68*8kB (UME) 110*16kB (UME) 94*32kB (UME) 78*64kB (UME) 56*128kB (UE) 40*256kB (UME) 15*512kB (E) 3*1024kB (UE) 3*2048kB (E) 0*4096kB = 45068kB 2025-03-10T12:48:00.670373+01:00 bib kernel: [769596.795118] Node 0 Normal: 412*4kB (UME) 307*8kB (UME) 166*16kB (UME) 167*32kB (UME) 83*64kB (UME) 50*128kB (UME) 23*256kB (E) 13*512kB (ME) 7*1024kB (ME) 0*2048kB 0*4096kB = 43528kB 2025-03-10T12:48:00.670373+01:00 bib kernel: [769596.795916] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB 2025-03-10T12:48:00.670373+01:00 bib kernel: [769596.796271] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 2025-03-10T12:48:00.670374+01:00 bib kernel: [769596.796713] 155111 total pagecache pages 2025-03-10T12:48:00.670374+01:00 bib kernel: [769596.797122] 149255 pages in swap cache 2025-03-10T12:48:00.670374+01:00 bib kernel: [769596.797463] Free swap = 0kB 2025-03-10T12:48:00.670375+01:00 bib kernel: [769596.797848] Total swap = 1998844kB 2025-03-10T12:48:00.670922+01:00 bib kernel: [769596.798238] 2097017 pages RAM 2025-03-10T12:48:00.670926+01:00 bib kernel: [769596.798577] 0 pages HighMem/MovableOnly 2025-03-10T12:48:00.670926+01:00 bib kernel: [769596.798954] 72924 pages reserved 2025-03-10T12:48:00.671386+01:00 bib kernel: [769596.799356] 0 pages hwpoisoned 2025-03-10T12:48:00.671388+01:00 bib kernel: [769596.799693] Tasks state (memory values in pages): 2025-03-10T12:48:00.671388+01:00 bib kernel: [769596.800070] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name 2025-03-10T12:48:00.671389+01:00 bib kernel: [769596.800463] [ 274] 0 274 30075 22 241664 274 -250 systemd-journal 2025-03-10T12:48:00.671389+01:00 bib kernel: [769596.800839] [ 295] 0 295 6770 278 86016 221 -1000 systemd-udevd 2025-03-10T12:48:00.671390+01:00 bib kernel: [769596.801224] [ 524] 997 524 22521 154 77824 82 0 systemd-timesyn 2025-03-10T12:48:00.671390+01:00 bib kernel: [769596.801603] [ 609] 0 609 2372 35 53248 28 0 cron 2025-03-10T12:48:00.671390+01:00 bib kernel: [769596.801997] [ 610] 100 610 2011 143 61440 8 -900 dbus-daemon 2025-03-10T12:48:00.671391+01:00 bib kernel: [769596.802387] [ 612] 0 612 55447 184 81920 116 0 rsyslogd 2025-03-10T12:48:00.671391+01:00 bib kernel: [769596.802749] [ 613] 0 613 4185 203 73728 73 0 systemd-logind 2025-03-10T12:48:00.671391+01:00 bib kernel: [769596.803147] [ 629] 0 629 895 40 49152 3 0 atd 2025-03-10T12:48:00.671392+01:00 bib kernel: [769596.803558] [ 666] 0 666 1499 202 53248 45 0 dhclient 2025-03-10T12:48:00.671392+01:00 bib kernel: [769596.803913] [ 715] 0 715 1435 100 49152 105 0 dhclient 2025-03-10T12:48:00.671393+01:00 bib kernel: [769596.804313] [ 747] 104 747 2208 550 61440 34 0 epmd 2025-03-10T12:48:00.671393+01:00 bib kernel: [769596.804716] [ 753] 0 753 173229 3280 430080 880 0 fail2ban-server 2025-03-10T12:48:00.671393+01:00 bib kernel: [769596.805078] [ 774] 106 774 920414 28673 1294336 23431 -500 beam.smp 2025-03-10T12:48:00.671393+01:00 bib kernel: [769596.805494] [ 797] 0 797 2188 20 53248 2 0 agetty 2025-03-10T12:48:00.671394+01:00 bib kernel: [769596.806006] [ 812] 0 812 3859 213 65536 120 -1000 sshd 2025-03-10T12:48:00.671394+01:00 bib kernel: [769596.806567] [ 841] 106 841 616 19 53248 6 -500 erl_child_setup 2025-03-10T12:48:00.671395+01:00 bib kernel: [769596.807045] [ 1774] 0 1774 10665 108 69632 53 0 master 2025-03-10T12:48:00.671395+01:00 bib kernel: [769596.807442] [ 1779] 102 1779 10700 127 81920 48 0 qmgr 2025-03-10T12:48:00.671396+01:00 bib kernel: [769596.807848] [ 2023] 106 2023 848 11 45056 14 -500 inet_gethost 2025-03-10T12:48:00.671396+01:00 bib kernel: [769596.808192] [ 2026] 106 2026 848 24 45056 8 -500 inet_gethost 2025-03-10T12:48:00.671397+01:00 bib kernel: [769596.808560] [ 2034] 106 2034 644 14 40960 14 -500 sh 2025-03-10T12:48:00.671397+01:00 bib kernel: [769596.808953] [ 3262] 103 3262 2058793 518769 7716864 392357 0 mariadbd 2025-03-10T12:48:00.671397+01:00 bib kernel: [769596.809287] [ 392666] 102 392666 12109 128 90112 225 0 tlsmgr 2025-03-10T12:48:00.671398+01:00 bib kernel: [769596.809647] [2332677] 0 2332677 3456 434 61440 303 0 apache2 2025-03-10T12:48:00.671398+01:00 bib kernel: [769596.810031] [2332685] 105 2332685 107470 2677 159744 2787 0 memcached 2025-03-10T12:48:00.671399+01:00 bib kernel: [769596.810358] [2332735] 1003 2332735 2128 21 49152 15 0 daemon 2025-03-10T12:48:00.671399+01:00 bib kernel: [769596.810703] [2332737] 1003 2332737 14826 161 110592 256 0 zebrasrv 2025-03-10T12:48:00.671399+01:00 bib kernel: [769596.811075] [2332802] 1003 2332802 6211 2612 94208 287 0 starman master 2025-03-10T12:48:00.671400+01:00 bib kernel: [769596.811400] [2332846] 1003 2332846 2128 37 49152 0 0 daemon 2025-03-10T12:48:00.671400+01:00 bib kernel: [769596.811734] [2332847] 1003 2332847 29751 13047 221184 414 0 background_jobs 2025-03-10T12:48:00.671401+01:00 bib kernel: [769596.812076] [2332875] 1003 2332875 2128 21 45056 14 0 daemon 2025-03-10T12:48:00.671401+01:00 bib kernel: [769596.812396] [2332877] 1003 2332877 41320 19112 323584 4526 0 background_jobs 2025-03-10T12:48:00.671401+01:00 bib kernel: [769596.812718] [2332902] 1003 2332902 2128 13 49152 22 0 daemon 2025-03-10T12:48:00.671402+01:00 bib kernel: [769596.813044] [2332904] 1003 2332904 73759 36200 540672 6622 0 rebuild_zebra.p 2025-03-10T12:48:00.671402+01:00 bib kernel: [769596.813369] [1011996] 102 1011996 10671 154 73728 0 0 pickup 2025-03-10T12:48:00.671402+01:00 bib kernel: [769596.813651] [1014020] 33 1014020 3517 422 61440 316 0 apache2 2025-03-10T12:48:00.671403+01:00 bib kernel: [769596.813976] [1015250] 33 1015250 3517 426 61440 311 0 apache2 2025-03-10T12:48:00.671403+01:00 bib kernel: [769596.814307] [1018044] 33 1018044 3517 472 61440 265 0 apache2 2025-03-10T12:48:00.671403+01:00 bib kernel: [769596.814583] [1018109] 33 1018109 3517 465 61440 272 0 apache2 2025-03-10T12:48:00.671404+01:00 bib kernel: [769596.814882] [1018113] 33 1018113 3517 473 61440 265 0 apache2 2025-03-10T12:48:00.671404+01:00 bib kernel: [769596.815171] [1020113] 33 1020113 3517 473 61440 264 0 apache2 2025-03-10T12:48:00.671404+01:00 bib kernel: [769596.815506] [1024635] 33 1024635 3517 474 61440 264 0 apache2 2025-03-10T12:48:00.671405+01:00 bib kernel: [769596.815796] [1026139] 33 1026139 3517 474 61440 264 0 apache2 2025-03-10T12:48:00.671405+01:00 bib kernel: [769596.816089] [1026170] 33 1026170 3517 473 61440 264 0 apache2 2025-03-10T12:48:00.671405+01:00 bib kernel: [769596.816378] [1026641] 1003 1026641 1185289 1122584 9445376 29621 0 /usr/share/koha 2025-03-10T12:48:00.671406+01:00 bib kernel: [769596.816688] [1026652] 33 1026652 3517 473 61440 264 0 apache2 2025-03-10T12:48:00.671406+01:00 bib kernel: [769596.816972] [1027075] 1003 1027075 99496 34733 749568 33424 0 /usr/share/koha 2025-03-10T12:48:00.671407+01:00 bib kernel: [769596.817289] [1027426] 1003 1027426 3594 624 65536 241 0 apache2 2025-03-10T12:48:00.671416+01:00 bib kernel: [769596.817615] [1027453] 1003 1027453 3592 669 61440 240 0 apache2 2025-03-10T12:48:00.671416+01:00 bib kernel: [769596.817890] [1027749] 1003 1027749 16877 179 114688 2268 0 zebrasrv 2025-03-10T12:48:00.671416+01:00 bib kernel: [769596.818218] [1027761] 1003 1027761 3538 563 61440 244 0 apache2 2025-03-10T12:48:00.671417+01:00 bib kernel: [769596.818501] [1027769] 1003 1027769 16966 2354 114688 229 0 zebrasrv 2025-03-10T12:48:00.671417+01:00 bib kernel: [769596.818812] [1027770] 1003 1027770 3523 559 61440 241 0 apache2 2025-03-10T12:48:00.671417+01:00 bib kernel: [769596.819085] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/system.slice/koha-common.service,task=/usr/share/koha,pid=1026641,uid=1003 2025-03-10T12:48:00.671418+01:00 bib kernel: [769596.819717] Out of memory: Killed process 1026641 (/usr/share/koha) total-vm:4741156kB, anon-rss:4490332kB, file-rss:4kB, shmem-rss:0kB, UID:1003 pgtables:9224kB oom_score_adj:0 2025-03-10T12:48:00.721396+01:00 bib systemd[1]: koha-common.service: A process of this unit has been killed by the OOM killer. 2025-03-10T12:48:03.702481+01:00 bib koha-common[1027819]: Stopping Plack daemon for bib:. 2025-03-10T12:48:03.755927+01:00 bib koha-common[1027861]: Stopping Koha worker daemon for bib (default):. 2025-03-10T12:48:03.789372+01:00 bib koha-common[1027886]: Stopping Koha worker daemon for bib (long_tasks):. 2025-03-10T12:48:03.825612+01:00 bib koha-common[1027911]: Stopping Koha indexing daemon for bib:. 2025-03-10T12:48:05.057975+01:00 bib systemd[1]: koha-common.service: Failed with result 'oom-kill'. 2025-03-10T12:48:05.058217+01:00 bib systemd[1]: koha-common.service: Consumed 2d 22h 25min 610ms CPU time.

3 6

Call for news - Newsletter March 2025
by Michael Kuhn 13 Mar '25

13 Mar '25

Hi I'm collecting news for the March 2025 Koha Community Newsletter. Please send anything noteworthy to: kohanews (at) gmail (dot) com News criteria: * Relevant news items can be of any length. * Images are fine. * Anything and everything Koha. * Submit by the 26th of the month. Text format criteria: * Just structured plain text, or * HTML text to include tables or similar For events: * Consider adding your event to the Koha Community calendar at https://koha-community.org/calendar/ Thank you! Michael Kuhn Editor, Koha Community Newsletter

1 0

Re: [Koha-devel] [RESEND] Ban the use of `our` in our codebase?
by Tomas Cohen Arazi 12 Mar '25

12 Mar '25

I'm in. El mié, 12 mar 2025 a las 9:36, Jonathan Druart (<jonathan.druart(a)gmail.com>) escribió: > This one smells bad: > tools/exceptionHolidays.pl > 43 our @holiday_list; > > As well as all the "our $tagslib": big structures (marc subfields) are > kept in memory. > > I think we should at least fix the easy ones, I am willing to write a > patch if two people commit to assisting with the SO and QA steps. > > Le mer. 12 mars 2025 à 12:59, Tomas Cohen Arazi via Koha-devel > <koha-devel(a)lists.koha-community.org> a écrit : > > > > Yeah, I'd advocate for a 'fix as seen' basis instead of a whole rewrite > project. But yeah. > > > > El mié, 12 mar 2025 a las 8:18, Kyle Hall (<kyle.m.hall(a)gmail.com>) > escribió: > >> > >> I believe you are correct. IIRC some of the times we've attempted to > simply swap `our` for `my` it has created issues with the code. Swapping > the variable for a caching mechanism definitely sounds like the way to go! > I'm seeing a lot of `our` keywords that appear to be functionally > constants, and should be changed to constants. > >> > >> Kyle > >> > >> --- > >> http://www.kylehall.info > >> ByWater Solutions ( http://bywatersolutions.com ) > >> Meadville Public Library ( http://www.meadvillelibrary.org ) > >> Crawford County Federated Library System ( http://www.ccfls.org ) > >> > >> > >> On Wed, Mar 12, 2025 at 6:56 AM Tomas Cohen Arazi via Koha-devel < > koha-devel(a)lists.koha-community.org> wrote: > >>> > >>> I'm not sure why we didn't do it already, but running Koha in a > persistent context has become the standard. > >>> > >>> This means variables defined as `our $variable` will persist in memory > while workers run. And this is dangerous for several reasons. The most > obvious one is that sometimes the code expects the caller to pass a > parameter and checks if it is defined, and using `our` might make it > defined when it shouldn't. > >>> > >>> If the reason to use it is caching, then it is a bad pattern anyway. > We should be using the in-memory cache (lite) explicitly so everyone knows > the value is expected to be fetched from a cache. > >>> > >>> Looking forward to hear your thoughts > >>> > >>> PS interestingly, I found this while finding the root cause for some > files not being tidied :-P > >>> https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=39152 > >>> > >>> -- > >>> Tomás Cohen Arazi > >>> Theke Solutions (https://theke.io) > >>> ✆ +54 9351 3513384 > >>> GPG: B2F3C15F > >>> _______________________________________________ > >>> Koha-devel mailing list > >>> Koha-devel(a)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/ > > > > > > > > -- > > Tomás Cohen Arazi > > Theke Solutions (https://theke.io) > > ✆ +54 9351 3513384 > > GPG: B2F3C15F > > _______________________________________________ > > Koha-devel mailing list > > Koha-devel(a)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/ > -- Tomás Cohen Arazi Theke Solutions (https://theke.io) ✆ +54 9351 3513384 GPG: B2F3C15F

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[RESEND] Ban the use of `our` in our codebase?
by Tomas Cohen Arazi 12 Mar '25

12 Mar '25

I'm not sure why we didn't do it already, but running Koha in a persistent context has become the standard. This means variables defined as `our $variable` will persist in memory while workers run. And this is dangerous for several reasons. The most obvious one is that sometimes the code expects the caller to pass a parameter and checks if it is defined, and using `our` might make it defined when it shouldn't. If the reason to use it is caching, then it is a bad pattern anyway. We should be using the in-memory cache (lite) explicitly so everyone knows the value is expected to be fetched from a cache. Looking forward to hear your thoughts PS interestingly, I found this while finding the root cause for some files not being tidied :-P https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=39152 -- Tomás Cohen Arazi Theke Solutions (https://theke.io) ✆ +54 9351 3513384 GPG: B2F3C15F

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io_uring_queue_init failed with MariaDB 10.11.6 / Koha 23.11
by Marcel de Rooy 07 Mar '25

07 Mar '25

Hi all, I have switched from 22.11 to 23.11 while upgrading the MariaDB server from 10.5.23 to 10.11.6 (in a Docker container based on the official mariadb image from Docker hub. I am now seeing this warning in docker logs: 2025-03-06 11:14:44 0 [Warning] mysqld: io_uring_queue_init() failed with errno 1 2025-03-06 11:14:44 0 [Warning] InnoDB: liburing disabled: falling back to innodb_use_native_aio=OFF Have been searching and tested with more memory and raising memlock with --ulimit in the docker run statement, but to no avail yet. You can check if MariaDB disabled this setting in your setup with mysql: show variables like 'innodb_use_native_aio'; If it is still ON, you are probably good. Anyone else seeing this issue or have any further clues? Thanks, Marcel

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Can't call method "biblioitemnumber" on an undefined value
by Michael Kuhn 05 Mar '25

05 Mar '25

Hi We are using Debian GNU/Linux 12 with Koha 24.05.05. When running script "search_for_data_inconsistencies.pl" it shows only the following message: Can't call method "biblioitemnumber" on an undefined value at /usr/share/koha/bin/maintenance/search_for_data_inconsistencies.pl line 152. What does it mean, how can we find out what's the problem here? Best wishes: Michael -- Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz T 0041 (0)61 261 55 61 · E mik(a)adminkuhn.ch · W www.adminkuhn.ch

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REMINDER: Development Jitsi meeting 5 March 2025
by Paul Derscheid 04 Mar '25

04 Mar '25

Hi all, We have a Development Jitsi meeting scheduled for tomorrow: https://wiki.koha-community.org/wiki/Development_IRC_meeting_5_March_2025 Time converter: https://www.timeanddate.com/worldclock/fixedtime.html?msg=Koha+Developers+M… Please feel free to add any topics you’d like to discuss to the agenda or let me know and I am happy to add them for you. If you are lead or supporter of a roadmap project, we will be happy to get an update on progress. See you there! Paul

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Karanga Mai | Call for Presentations for Kohacon25 Now Open!
by Chris Cormack 02 Mar '25

02 Mar '25

Kia ora koutou, We're very happy to announce that the call for presentations for KohaCon25 is now open! As Koha returns to Aotearoa for its 25th birthday, we're keen to hear your stories and insights for both our conference sessions and working together days. ## Te Kaupapa | Theme Our theme is "Coming Home" as we celebrate a quarter-century of Koha. We're particularly interested in presentations that: - Share success stories from your Koha journey - Highlight how Koha has grown and evolved since its beginnings in Horowhenua - Showcase innovative ways libraries are using Koha - Reflect on the impact of open source in libraries - Look towards the next 25 years of Koha ## Conference Days (17-19 November) We welcome presentations ranging from 15 minutes to 1 hour, including: - Feature showcases - Case studies - Community stories - Future visions - Lightning talks ## Working Together Days (21-23 November) We're seeking workshop proposals for our hands-on sessions, such as: - Technical workshops - Development sprints - Documentation improvements - Training sessions - Community initiatives - Collaborative problem-solving ## Ngā Kōrero | Presentation Details - All presentations will be in-person at Te Whanganui-a-Tara | Wellington - Sessions will be live-streamed for our global whānau - When submitting, please indicate your preferred time length and session type ## Tukua Mai | How to Submit Submit your proposal through our online form at https://cfp.kohacon.org/forms/kohacon25-talks-submission-lfe0lb by 1 March 2025. Your submission should include: - Title of your presentation or workshop - Abstract - Session type (conference talk or workshop) - Preferred length - Brief bio - Any technical requirements ## Important Dates - Submissions close: 1 March 2025 - Presenters notified: 15 March 2025 ## Questions? Flick us an email at chris(a)bigballofwax.co.nz if you have any questions. Share your story as part of this milestone celebration of Koha's journey home. Whether you're a long-time community member or new to the whānau, we'd love to hear from you. Ngā mihi nui, Chris

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Koha Community Newsletter: February 2025
by Michael Kuhn 01 Mar '25

01 Mar '25

The Koha Community Newsletter for February 2025 is here: https://koha-community.org/koha-community-newsletter-february-2025/ Many thanks to everyone who submitted articles and news to this newsletter! Please feel free to email me (mik(a)adminkuhn.ch) with any corrections or suggestions. Michael Kuhn Editor, Koha Community Newsletter

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Test email
by Tomas Cohen Arazi 20 Feb '25

20 Feb '25

Dismiss this email. Hi, this is just a test, as my latest email never reached y'all. -- Tomás Cohen Arazi Theke Solutions (https://theke.io) ✆ +54 9351 3513384 GPG: B2F3C15F

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