Re: Potential "AIO / io workers" inter-worker locking issue in PG18?
От | Marco Boeringa |
---|---|
Тема | Re: Potential "AIO / io workers" inter-worker locking issue in PG18? |
Дата | |
Msg-id | fbac4358-21de-4c25-b325-6bb07b8e8e15@boeringa.demon.nl обсуждение исходный текст |
Ответ на | Potential "AIO / io workers" inter-worker locking issue in PG18? (Marco Boeringa <marco@boeringa.demon.nl>) |
Список | pgsql-bugs |
Hi Andres, Probably less useful, but just to further illustrate the issue, the results op 'top' which shows multiple stuck postgress processes already busy for hours and as written before all displaying as 'active' with no wait events in pgAdmin: top - 21:42:44 up 12:20, 2 users, load average: 16,14, 16,14, 16,09 Tasks: 664 total, 17 running, 647 sleeping, 0 stopped, 0 zombie %Cpu(s): 37,0 us, 0,1 sy, 0,0 ni, 62,9 id, 0,0 wa, 0,0 hi, 0,0 si, 0,0 st MiB Mem : 393429,0 total, 297340,0 free, 53521,1 used, 91791,0 buff/cache MiB Swap: 153600,0 total, 153600,0 free, 0,0 used. 339907,9 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 118256 postgres 20 0 164,3g 994408 985600 R 100,0 0,2 309:57.22 postgres 118264 postgres 20 0 164,3g 1,0g 994,8m R 100,0 0,3 309:57.46 postgres 118367 postgres 20 0 164,3g 911516 907456 R 100,0 0,2 309:55.78 postgres 118368 postgres 20 0 164,3g 915388 911328 R 100,0 0,2 309:55.82 postgres 118369 postgres 20 0 164,3g 914684 910272 R 100,0 0,2 309:55.20 postgres 118372 postgres 20 0 164,3g 924188 916256 R 100,0 0,2 309:55.20 postgres 118254 postgres 20 0 164,3g 1,0g 1,0g R 99,9 0,3 309:52.71 postgres 118255 postgres 20 0 164,3g 993,6m 981,8m R 99,9 0,3 309:57.73 postgres 118259 postgres 20 0 164,3g 978,2m 988768 R 99,9 0,2 309:57.47 postgres 118261 postgres 20 0 164,3g 1,0g 987,2m R 99,9 0,3 309:57.52 postgres 118262 postgres 20 0 164,3g 998560 990176 R 99,9 0,2 309:57.04 postgres 118265 postgres 20 0 164,3g 1,0g 1,0g R 99,9 0,3 309:55.86 postgres 118365 postgres 20 0 164,3g 925244 917312 R 99,9 0,2 309:56.02 postgres 118366 postgres 20 0 164,3g 920668 912384 R 99,9 0,2 309:56.02 postgres 118370 postgres 20 0 164,3g 923132 915200 R 99,9 0,2 309:55.22 postgres 118373 postgres 20 0 164,3g 924188 916256 R 99,9 0,2 309:54.96 postgres 2546 ubuntu_+ 20 0 560524 266288 106704 S 21,8 0,1 7:48.62 Xorg 2954 ubuntu_+ 20 0 9050316 455464 167812 S 7,3 0,1 4:33.90 gnome-s+ 1855 xrdp 20 0 133248 16344 8800 S 1,3 0,0 0:37.48 xrdp 4329 ubuntu_+ 20 0 851956 56648 43292 S 0,7 0,0 0:25.66 gnome-t+ 123595 ubuntu_+ 20 0 14644 5632 3520 R 0,4 0,0 0:00.31 top 123432 root 20 0 0 0 0 I 0,2 0,0 0:00.09 kworker+ 1385 polkitd 20 0 384600 9744 7392 S 0,1 0,0 0:01.92 polkitd 1982 gdm 20 0 8805756 237412 128832 S 0,1 0,1 1:20.05 gnome-s+ 3259 ubuntu_+ 20 0 388852 11472 6688 S 0,1 0,0 0:08.03 ibus-da+ 3368 ubuntu_+ 20 0 347872 30504 17556 S 0,1 0,0 0:03.70 ibus-ex+ 3638 ubuntu_+ 20 0 236772 6688 6336 S 0,1 0,0 0:02.33 ibus-en+ 30304 ubuntu_+ 20 0 6490464 271864 129800 S 0,1 0,1 0:23.91 nautilus 1 root 20 0 23892 13024 8800 S 0,0 0,0 0:04.11 systemd 2 root 20 0 0 0 0 S 0,0 0,0 0:00.04 kthreadd 3 root 20 0 0 0 0 S 0,0 0,0 0:00.00 pool_wo+ 4 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker+ 5 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker+ 6 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker+ 7 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker+ 9 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker+ 10 root 20 0 0 0 0 I 0,0 0,0 0:05.18 kworker+
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