在某些日子里，PostgreSql 服务器开始定期重新启动。日志文件如下。它包含找到的孤立临时表记录，然后执行重新启动。
应用程序由大约 50 个用户通过 Internet 使用的单个应用程序访问，并且集群中有大约 10 个数据库。
如何修复重启和那些错误？
在 x86_64-unknown-linux-gnu 上使用 PostgreSQL 9.1.2，由 gcc-4.4.real (Debian 4.4.5-8) 4.4.5 编译，64 位
日志文件包含：
....
2013-06-10 11:11:57 EEST LOG: server process (PID 25148) was terminated by signal 9: Killed
2013-06-10 11:11:57 EEST LOG: terminating any other active server processes
...
更新
dmesg 内容如下。这是在托管服务提供商的 Parallels Desktop 下运行的 VPS 服务器。交换可能已禁用。在此服务器中，还有 mono 2.6 和 apache，它们为访问同一数据库的 ASP.NET 应用程序提供服务。顶部的输出如下。我有少量的 Linux 经验。我从答案中阅读了链接，但不明白。这是解决它的最佳解决方案，最好不添加内存。
免费退货
total used free shared buffers cached
Mem: 1048576 1046504 2072 0 0 230512
-/+ buffers/cache: 815992 232584
Swap: 0 0 0
dmesg：
[2083241.896072] OOM killed process 21849 (mono) vm:420164kB, rss:165296kB, swap:0kB
[2116348.398705] OOM killed process 4970 (postgres) vm:157948kB, rss:76236kB, swap:0kB
[2121711.560995] OOM killed process 5366 (postgres) vm:160348kB, rss:82340kB, swap:0kB
[2123522.901114] OOM killed process 5505 (postgres) vm:145272kB, rss:66840kB, swap:0kB
[2151490.026306] OOM killed process 362 (mono) vm:370636kB, rss:162272kB, swap:0kB
[2160560.103350] OOM killed process 13285 (postgres) vm:195468kB, rss:103792kB, swap:0kB
[2202499.040721] OOM killed process 19391 (postgres) vm:118792kB, rss:45116kB, swap:0kB
[2207881.033010] OOM killed process 19876 (postgres) vm:141356kB, rss:57004kB, swap:0kB
[2209677.336040] OOM killed process 20017 (postgres) vm:127360kB, rss:50764kB, swap:0kB
[2211481.827980] OOM killed process 20193 (postgres) vm:139560kB, rss:56112kB, swap:0kB
[2227779.349062] OOM killed process 12151 (mono) vm:346484kB, rss:142900kB, swap:0kB
[2233087.801652] OOM killed process 21250 (postgres) vm:111996kB, rss:38548kB, swap:0kB
[2236034.881167] OOM killed process 22622 (postgres) vm:111972kB, rss:37672kB, swap:0kB
[2237418.351794] OOM killed process 23868 (postgres) vm:114480kB, rss:40864kB, swap:0kB
[2237723.417347] OOM killed process 24460 (postgres) vm:112764kB, rss:37500kB, swap:0kB
[2238023.668780] OOM killed process 24583 (postgres) vm:112884kB, rss:36024kB, swap:0kB
[2238210.220733] OOM killed process 24773 (postgres) vm:105600kB, rss:22608kB, swap:0kB
[2238397.290829] OOM killed process 24812 (postgres) vm:106360kB, rss:28996kB, swap:0kB
[2238808.757086] OOM killed process 24973 (postgres) vm:109156kB, rss:28676kB, swap:0kB
[2239112.617356] OOM killed process 25148 (postgres) vm:105520kB, rss:26392kB, swap:0kB
[2239217.367104] OOM killed process 25298 (postgres) vm:105700kB, rss:31020kB, swap:0kB
[2239277.036465] OOM killed process 25417 (postgres) vm:106424kB, rss:26024kB, swap:0kB
[2239400.317380] OOM killed process 25479 (postgres) vm:106392kB, rss:18544kB, swap:0kB
[2239536.589647] OOM killed process 25561 (postgres) vm:108412kB, rss:18364kB, swap:0kB
[2239715.268972] OOM killed process 25602 (postgres) vm:111832kB, rss:35944kB, swap:0kB
[2239798.713414] OOM killed process 25701 (postgres) vm:124232kB, rss:37844kB, swap:0kB
[2239812.799232] OOM killed process 25746 (postgres) vm:135948kB, rss:34552kB, swap:0kB
[2239885.587583] OOM killed process 25752 (postgres) vm:113524kB, rss:36880kB, swap:0kB
[2240040.811768] OOM killed process 25789 (postgres) vm:109204kB, rss:33684kB, swap:0kB
[2240416.506723] OOM killed process 25870 (postgres) vm:109268kB, rss:34060kB, swap:0kB
最佳：
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
26679 postgres 20 0 101m 14m 10m S 5.0 1.4 0:00.20 postgres
26680 postgres 20 0 103m 29m 24m S 1.7 2.8 0:00.21 postgres
26135 www-data 20 0 265m 60m 3180 S 0.3 5.9 0:07.37 mono
26401 www-data 20 0 244m 49m 2912 S 0.3 4.8 0:03.17 mono
1 root 20 0 8360 236 108 S 0.0 0.0 0:14.01 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd/893
3 root 20 0 0 0 0 S 0.0 0.0 0:00.00 khelper/893
460 root 20 0 5988 372 204 S 0.0 0.0 0:07.68 syslogd
488 root 20 0 54568 540 44 S 0.0 0.1 0:00.00 saslauthd
490 root 20 0 54568 496 0 S 0.0 0.0 0:00.00 saslauthd
552 root 20 0 22432 440 192 S 0.0 0.0 0:02.05 cron
563 messageb 20 0 23272 408 136 S 0.0 0.0 0:00.01 dbus-daemon
594 postgres 20 0 99628 6740 5568 S 0.0 0.6 2:51.67 postgres
613 root 20 0 19340 216 12 S 0.0 0.0 0:00.00 xinetd
641 root 20 0 49180 776 220 S 0.0 0.1 0:11.05 sshd
669 root 20 0 56036 1956 372 S 0.0 0.2 0:42.91 sendmail-mta
728 postgres 20 0 65848 1388 172 S 0.0 0.1 0:36.99 postgres
6547 www-data 20 0 252m 57m 280 S 0.0 5.6 1:03.18 mono
6930 www-data 20 0 117m 43m 124 S 0.0 4.3 1:01.71 mono
7489 www-data 20 0 122m 40m 124 S 0.0 4.0 1:00.75 mono
8158 www-data 20 0 118m 38m 124 S 0.0 3.8 0:58.19 mono
8311 www-data 20 0 120m 38m 124 S 0.0 3.8 1:16.12 mono
9776 www-data 20 0 302m 85m 660 S 0.0 8.4 1:17.09 mono
12555 root 20 0 183m 2100 612 S 0.0 0.2 0:00.13 console-kit-dae
14887 root 20 0 74392 2544 908 S 0.0 0.2 0:23.99 apache2
14890 www-data 20 0 50000 9792 292 S 0.0 0.9 0:05.86 mono
14892 www-data 20 0 189m 51m 732 S 0.0 5.1 1:57.05 mono
14900 www-data 20 0 168m 34m 608 S 0.0 3.4 11:47.60 mono
更新 2
postgresql.conf 设置如下。工作内存被注释，shared_buffers 为 24MB。因此，更改这些设置不会影响行为。内存为1GB。杀死占用 10% 内存重新启动的单进程后停止。如何解决这个问题，使其不再发生？
#work_mem = 1MB # min 64kB
#maintenance_work_mem = 16MB # min 1MB
shared_buffers = 24MB