服务器上的 posgtres 突然停止，日志显示以下错误：
2015-08-18 02:29:22 IST ERROR: could not extend file "base/197893/198337": No space left on device
2015-08-18 02:29:22 IST HINT: Check free disk space.
2015-08-18 02:29:22 IST STATEMENT: UPDATE "data_shipmentpptlmapping" SET "pptl_id" = '2558', "time" = '2015-08-17 20:40:47.163837+00:00', "bag_seal_status" = 'close', "
shipment_id_id" = 728518 WHERE "data_shipmentpptlmapping"."id" = 557513
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary statistics file "pg_stat_tmp/pgstat.tmp": No space left on device
2015-08-18 02:29:25 IST LOG: could not write temporary 2015-08-18 04:29:04 IST LOG: database system shutdown was interrupted; last known up at 2015-08-18 03:35:25 IST
以下是 Postgres 的详细信息：
postgres=# SHOW data_directory;
data_directory
------------------------------
/var/lib/postgresql/9.1/main
(1 row)
postgres=# SHOW temp_tablespaces;
temp_tablespaces
------------------
(1 row)
postgres=# SELECT version()
postgres-# ;
version
--------------------------------------------------------------------------------------------------------
PostgreSQL 9.1.14 on x86_64-unknown-linux-gnu, compiled by gcc-4.7.real (Debian 4.7.2-5) 4.7.2, 64-bit
(1 row)
正在更新信息..服务器的磁盘使用结果..
➜ ~ df -h
Filesystem Size Used Avail Use% Mounted on
rootfs 909G 465G 398G 54% /
udev 10M 10M 0 100% /dev
tmpfs 1.6G 616K 1.6G 1% /run
/dev/disk/by-uuid/9ca82aa1-92c7-458c-a76d-9ce5c074f5dd 909G 465G 398G 54% /
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 4.8G 24M 4.8G 1% /run/shm
tmpfs 4.8G 0 4.8G 0% /tmp
添加信息ls -l /var/lib/postgresql/9.1/main。
total 56
drwx------ 8 postgres postgres 4096 Sep 28 2014 base
drwx------ 2 postgres postgres 4096 Aug 18 04:29 global
drwx------ 2 postgres postgres 4096 Aug 13 23:58 pg_clog
drwx------ 4 postgres postgres 4096 Aug 12 2014 pg_multixact
drwx------ 2 postgres postgres 4096 Aug 18 04:29 pg_notify
drwx------ 2 postgres postgres 4096 Aug 12 2014 pg_serial
drwx------ 2 postgres postgres 4096 Aug 19 18:24 pg_stat_tmp
drwx------ 2 postgres postgres 4096 Aug 19 05:34 pg_subtrans
drwx------ 2 postgres postgres 4096 Aug 12 2014 pg_tblspc
drwx------ 2 postgres postgres 4096 Aug 12 2014 pg_twophase
-rw------- 1 postgres postgres 4 Aug 12 2014 PG_VERSION
drwx------ 3 postgres postgres 4096 Aug 19 17:34 pg_xlog
-rw------- 1 postgres postgres 133 Aug 18 04:29 postmaster.opts
-rw------- 1 postgres postgres 93 Aug 18 04:29 postmaster.pid
lrwxrwxrwx 1 root root 36 Aug 12 2014 server.crt -> /etc/ssl/certs/ssl-cert-snakeoil.pem
lrwxrwxrwx 1 root root 38 Aug 12 2014 server.key -> /etc/ssl/private/ssl-cert-snakeoil.key
答案1
您所在的存储空间不足pg_stat_tmp/pgstat.tmp。这正是错误消息告诉您的内容。
答案2
正如@Tobias所说，这可能是内存不足的问题，因此请编辑postgresql.conf以减少shared_buffers或effective_cache_size ...您可以触发自由的在第一次出现“无空间”日志时查看内核的想法，但实际上这是一个 PG 错误。重新启动服务（暂时）解决了这个问题。