सबसे पहले, मैंने इस त्रुटि से संबंधित कई पोस्ट खोजे और पाए हैं, और उनमें से अधिकांश या तो एक RAM समस्या या एक SSL समस्या की ओर इशारा करते हैं, मैंने sslmode = कमांड लाइन में अक्षम करके SSL संभावना पर काबू पाने की कोशिश की:
psql -U waypoint -d waypoint -W -c "alter table telemetria_data.historico alter clase type smallint, alter valor type real[], alter power type smallint, alter voltaje type real;" -h localhost -v sslmode=disableलेकिन एक ही संदेश दिखाई दिया:
SSL SYSCALL error: EOF detected
connection to server was lostसंभव स्मृति समस्या के बारे में, मुझे नहीं पता कि इसका निवारण कैसे करना है।
डेटा संरचना इस प्रश्न में वर्णित है और, जैसा कि आप पा सकते हैं कि यह सभी विरासत तालिकाओं पर पूर्ण परिवर्तन तालिका को प्राप्त करने के लिए एक बहुत लंबी चलने वाली क्वेरी होगी।
ओएस:
Linux ip-10-1-0-9 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/LinuxPostgreSQL:
PostgreSQL 9.4.9 on x86_64-unknown-linux-gnu, compiled by gcc (Debian 4.9.2-10) 4.9.2, 64-bitअपडेट 2017-06-01 13:50 GMT
बदल दी गई (@ डैनियल वेथ्रे की सिफारिशों के कारण):
time PGSSLMODE=disable psql -U waypoint -d waypoint -W -c "alter table telemetria_data.historico alter clase type smallint, alter valor type real[], alter power type smallint, alter voltaje type real;" -h localhostसमस्या वास्तव में निम्नलिखित में बदल गई:
server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
connection to server was lostअपडेट 2017-06-01 15:34 GMT
/var/log/postgresql/postgresql-9.4-main.logइनकी तरह कई लॉग एंट्रीज (इन ) मिलीं:
2017-06-01 13:48:49 UTC [22899-357] LOG: checkpoints are occurring too frequently (19 seconds apart)
2017-06-01 13:48:49 UTC [22899-358] HINT: Consider increasing the configuration parameter "checkpoint_segments".तो मैं सुझाए गए संकेत के साथ आगे बढ़ूंगा।
प्रविष्टियों का यह समूह भी मिला, जो वास्तव में दुर्घटना और बाद में पुनर्प्राप्ति का उल्लेख करता है:
2017-06-01 13:49:04 UTC [4982-17] LOG: server process (PID 6569) was terminated by signal 9: Killed
2017-06-01 13:49:04 UTC [4982-18] DETAIL: Failed process was running: alter table telemetria_data.historico alter clase type smallint, alter valor type real[], alter power type smallint, alter voltaje type real;
2017-06-01 13:49:04 UTC [4982-19] LOG: terminating any other active server processes
2017-06-01 13:49:04 UTC [22902-2] WARNING: terminating connection because of crash of another server process
2017-06-01 13:49:04 UTC [22902-3] DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
2017-06-01 13:49:04 UTC [22902-4] HINT: In a moment you should be able to reconnect to the database and repeat your command.
2017-06-01 13:49:04 UTC [16383-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:04 UTC [16384-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:04 UTC [16386-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:04 UTC [16385-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:04 UTC [4982-20] LOG: all server processes terminated; reinitializing
2017-06-01 13:49:05 UTC [16402-1] LOG: database system was interrupted; last known up at 2017-06-01 13:48:45 UTC
2017-06-01 13:49:05 UTC [16403-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:05 UTC [16404-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:05 UTC [16414-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:05 UTC [16415-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:06 UTC [16452-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:06 UTC [16453-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:06 UTC [16462-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:06 UTC [16463-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:06 UTC [16472-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:06 UTC [16473-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:06 UTC [16482-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:06 UTC [16483-1] waypoint@waypoint FATAL: the database system is in recovery mode
2017-06-01 13:49:09 UTC [16402-2] LOG: database system was not properly shut down; automatic recovery in progress
2017-06-01 13:49:09 UTC [16402-3] LOG: redo starts at 11EC/9960F440
2017-06-01 13:49:21 UTC [16402-4] LOG: unexpected pageaddr 11E6/52726000 in log segment 00000001000011EC000000C9, offset 7495680
2017-06-01 13:49:21 UTC [16402-5] LOG: redo done at 11EC/C9723D60
2017-06-01 13:49:32 UTC [16402-6] LOG: MultiXact member wraparound protections are now enabled
2017-06-01 13:49:32 UTC [4982-21] LOG: database system is ready to accept connectionsइस अंतिम लॉग भाग पर कोई सुझाव?
OOM किलर सक्षम है, और निम्नलिखित पर निम्न आउटपुट है /var/log/messages:
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.672817] psql invoked oom-killer: gfp_mask=0x2000d0, order=2, oom_score_adj=0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.675652] psql cpuset=/ mems_allowed=0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.677274] CPU: 1 PID: 16367 Comm: psql Not tainted 3.16.0-4-amd64 #1 Debian 3.16.36-1+deb8u2
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680406] Hardware name: Xen HVM domU, BIOS 4.2.amazon 11/11/2016
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] 0000000000000000 ffffffff815123b5 ffff88003dcda1d0 0000000000000000
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] ffffffff8150ff8d 0000000000000000 ffffffff810d6e3f 0000000000000000
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] ffffffff81516d2e 0000000000000200 ffffffff810689d3 ffffffff810c43e4
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] Call Trace:
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff815123b5>] ? dump_stack+0x5d/0x78
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff8150ff8d>] ? dump_header+0x76/0x1e8
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff810d6e3f>] ? smp_call_function_single+0x5f/0xa0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff81516d2e>] ? mutex_lock+0xe/0x2a
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff810689d3>] ? put_online_cpus+0x23/0x80
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff810c43e4>] ? rcu_oom_notify+0xc4/0xe0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff81153d1c>] ? do_try_to_free_pages+0x4ac/0x520
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff811427dd>] ? oom_kill_process+0x21d/0x370
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff8114239d>] ? find_lock_task_mm+0x3d/0x90
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff81142f43>] ? out_of_memory+0x473/0x4b0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff81148e0f>] ? __alloc_pages_nodemask+0x9ef/0xb50
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff81065c86>] ? copy_process.part.25+0x116/0x1c50
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffffa00f6bba>] ? call_filldir+0x9a/0x160 [ext4]
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff81058301>] ? __do_page_fault+0x1d1/0x4f0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff811ac3f9>] ? get_empty_filp+0xc9/0x1c0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff81067990>] ? do_fork+0xe0/0x3d0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff811c6a1c>] ? __alloc_fd+0x7c/0x120
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff815188f9>] ? stub_clone+0x69/0x90
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.680557] [<ffffffff8151858d>] ? system_call_fast_compare_end+0x10/0x15
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.734210] Mem-Info:
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.735151] Node 0 DMA per-cpu:
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.736512] CPU 0: hi: 0, btch: 1 usd: 0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.738300] CPU 1: hi: 0, btch: 1 usd: 0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.740072] Node 0 DMA32 per-cpu:
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.741335] CPU 0: hi: 186, btch: 31 usd: 0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.743092] CPU 1: hi: 186, btch: 31 usd: 0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.745210] active_anon:370484 inactive_anon:549110 isolated_anon:24
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.745210] active_file:240 inactive_file:1425 isolated_file:0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.745210] unevictable:0 dirty:173 writeback:0 unstable:0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.745210] free:20427 slab_reclaimable:9729 slab_unreclaimable:3425
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.745210] mapped:567547 shmem:587500 pagetables:4209 bounce:0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.745210] free_cma:0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.760872] Node 0 DMA free:15224kB min:184kB low:228kB high:276kB active_anon:228kB inactive_anon:188kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15988kB managed:15904kB mlocked:0kB dirty:0kB writeback:0kB mapped:144kB shmem:204kB slab_reclaimable:4kB slab_unreclaimable:80kB kernel_stack:80kB pagetables:4kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.777646] lowmem_reserve[]: 0 3757 3757 3757
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.779553] Node 0 DMA32 free:69956kB min:44868kB low:56084kB high:67300kB active_anon:1481708kB inactive_anon:2196252kB active_file:1772kB inactive_file:1748kB unevictable:0kB isolated(anon):96kB isolated(file):0kB present:3915776kB managed:3849676kB mlocked:0kB dirty:0kB writeback:0kB mapped:2267676kB shmem:2349796kB slab_reclaimable:38712kB slab_unreclaimable:13620kB kernel_stack:2032kB pagetables:16832kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:14 all_unreclaimable? no
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.795757] lowmem_reserve[]: 0 0 0 0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.797650] Node 0 DMA: 11*4kB (EM) 8*8kB (EM) 1*16kB (E) 2*32kB (UE) 1*64kB (E) 1*128kB (E) 2*256kB (UE) 2*512kB (EM) 3*1024kB (UEM) 3*2048kB (EMR) 1*4096kB (M) = 15228kB
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.804011] Node 0 DMA32: 13752*4kB (UEM) 85*8kB (EM) 54*16kB (M) 43*32kB (M) 17*64kB (M) 15*128kB (M) 10*256kB (M) 3*512kB (M) 2*1024kB (M) 0*2048kB 1*4096kB (R) = 71176kB
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.811528] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.815461] 588017 total pagecache pages
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.816967] 0 pages in swap cache
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.818205] Swap cache stats: add 0, delete 0, find 0/0
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.820215] Free swap = 0kB
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.821475] Total swap = 0kB
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.822543] 982941 pages RAM
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.823640] 0 pages HighMem/MovableOnly
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.825110] 16525 pages reserved
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.826310] 0 pages hwpoisoned
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.827473] [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.830523] [ 159] 0 159 8242 800 21 0 0 systemd-journal
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.833717] [ 162] 0 162 10200 135 22 0 -1000 systemd-udevd
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.836679] [ 316] 0 316 6351 1726 14 0 0 dhclient
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.839533] [ 351] 0 351 7181 72 18 0 0 cron
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.842112] [ 353] 0 353 4964 68 14 0 0 systemd-logind
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.844894] [ 362] 107 362 10531 96 26 0 -900 dbus-daemon
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.847504] [ 376] 106 376 8345 154 21 0 0 ntpd
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.850085] [ 377] 0 377 65721 457 30 0 0 rsyslogd
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.852755] [ 388] 0 388 3909 39 12 0 0 agetty
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.855305] [ 389] 0 389 3864 40 13 0 0 agetty
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.857914] [ 451] 0 451 13796 168 29 0 -1000 sshd
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.860562] [ 481] 1002 481 26362 5081 54 0 0 perfmon_loop.rb
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.863918] [ 486] 1002 486 15211 3146 31 0 0 cht_perfmon
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.867273] [ 625] 0 625 9560 144 22 0 0 master
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.869878] [ 630] 108 630 10164 234 24 0 0 qmgr
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.872356] [ 3443] 0 3443 20130 213 41 0 0 sshd
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.874903] [ 3445] 1000 3445 20164 222 39 0 0 sshd
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.877451] [ 3446] 1000 3446 3176 43 9 0 0 sftp-server
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.880261] [ 4982] 105 4982 614831 42946 132 0 -900 postgres
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.882988] [ 6634] 0 6634 1570 23 9 0 0 collectdmon
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.885784] [ 6635] 0 6635 174485 156 36 0 0 collectd
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.888347] [22899] 105 22899 615399 541666 1105 0 0 postgres
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.890970] [22900] 105 22900 615395 14251 88 0 0 postgres
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.893836] [22901] 105 22901 615088 4252 53 0 0 postgres
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.896365] [22902] 105 22902 615305 1316 60 0 0 postgres
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.899083] [22903] 105 22903 21336 378 40 0 0 postgres
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.901954] [ 2946] 108 2946 10076 137 22 0 0 pickup
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.904462] [ 6376] 0 6376 20130 213 42 0 0 sshd
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.907440] [ 6378] 1000 6378 20130 209 40 0 0 sshd
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.910534] [ 6379] 1000 6379 5795 151 16 0 0 bash
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.913144] [ 6382] 0 6382 11515 107 28 0 0 sudo
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.915635] [ 6383] 0 6383 11895 96 27 0 0 su
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.918149] [ 6384] 105 6384 5796 139 16 0 0 bash
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.920900] [ 6561] 105 6561 18289 236 40 0 0 psql
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.923394] [ 6569] 105 6569 925161 853454 1718 0 0 postgres
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.926097] [16319] 0 16319 10865 95 25 0 0 cron
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.928611] [16320] 0 16320 10865 95 25 0 0 cron
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.931063] [16321] 0 16321 10865 95 25 0 0 cron
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.933758] [16322] 0 16322 10865 95 25 0 0 cron
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.936197] [16323] 1000 16323 1084 20 7 0 0 sh
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.938762] [16324] 1000 16324 1084 20 7 0 0 sh
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.941450] [16325] 1000 16325 1084 21 7 0 0 sh
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.943849] [16326] 1000 16326 1084 21 6 0 0 sh
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.946409] [16327] 1000 16327 3612 54 12 0 0 telemetria.sh
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.949258] [16328] 1000 16328 3613 57 12 0 0 instantaneo.sh
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.952633] [16329] 1000 16329 21335 4808 48 0 0 mon-put-instanc
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.955744] [16330] 1000 16330 3612 54 12 0 0 conexiones.sh
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.958555] [16366] 1000 16366 10744 1513 26 0 0 psql
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.961216] [16367] 1000 16367 10735 1512 26 0 0 psql
Jun 1 13:49:04 ip-10-1-0-9 kernel: [260956.963722] [16368] 1000 16368 7725 1044 19 0 0 awsअपडेट 2017-06-01 16:19 GMT
इसमें परिवर्तित सेटिंग्स:
checkpoint_segments = 100 # in logfile segments, min 1, 16MB each
checkpoint_timeout = 30s # range 30s-1hऔर मैंने हार्ड ड्राइव को भरा :( मैंने उदारता से चेकपॉइंट_सेक्शन बढ़ाया, लेकिन पहले उपलब्ध स्थान की जांच नहीं की। सौभाग्य से मैं इस प्रक्रिया का गैर-उत्पादन वातावरण में परीक्षण कर रहा हूं। इसलिए मुझे एक बार फिर उत्पादन सर्वर का क्लोन बनाना पड़ सकता है। या वहाँ अस्थायी उपयोग अंतरिक्ष खाली करने के लिए कोई रास्ता नहीं है, कि अब बर्बाद हो रहा है?
ERROR: could not extend file "base/16384/3940428": No space left on device
HINT: Check free disk space.@ Deszo के प्रश्न के अनुसार, मेमोरी ओवरकमिट मान निम्न हैं:
vm.nr_overcommit_hugepages = 0
vm.overcommit_kbytes = 0
vm.overcommit_memory = 0
vm.overcommit_ratio = 50अपडेट 2017-06-01 18: 107 GMT
सर्वर का उदाहरण AWS c4.large (2 vCPU, 3.75GB RAM) है
कुछ और पैरामीटर from postgresql.conf:
shared_buffers = 2GB # min 128kB
work_mem = 32MB # min 64kB
max_connections =800 # (change requires restart)
1
बैकएंड क्रैश जैसा लग रहा है। यह स्मृति की स्थिति से बाहर हो सकता है। Postgresql सर्वर लॉग की जाँच करें, और यदि OS लिनक्स है और OOM हत्यारा सक्षम है, तो कर्नेल विफलता के समय लॉग होता है।
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डैनियल वेत्रे
@ DanielVérité सवाल का PostgreSQL और कर्नेल लॉग प्रविष्टियों जोड़ा
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गोंजालो वास्क्वेज़
postgresql.org/docs/current/static/… - इसके अलावा, आपके उदाहरण में RAM का आकार क्या है? क्या कर रहे हैं
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dezso
shared_buffers, work_memऔर max_connectionsकरने के लिए सेट?
@dezso जोड़ा ... आपके लिंक के सुझावों का पालन करना होगा, लेकिन एक बार मैं "जीवित" डी डिस्क भरा हुआ मुद्दे से उदाहरण;)
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गोंजालो वास्क्वेज़