out of memory?

els

Jan 31 01:51:19 db01 kernel: Free swap:       4192624kB
Jan 31 01:51:19 db01 kernel: 1310720 pages of RAM
Jan 31 01:51:19 db01 kernel: 819136 pages of HIGHMEM
Jan 31 01:51:19 db01 kernel: 273905 reserved pages
Jan 31 01:51:19 db01 kernel: 360874 pages shared
Jan 31 01:51:19 db01 kernel: 40 pages swap cached
Jan 31 01:51:19 db01 kernel: Out of Memory: Killed process 5498 (gdmgreeter).

Jan 31 01:52:55 db01 kernel: Free swap:       4192624kB
Jan 31 01:52:55 db01 kernel: 1310720 pages of RAM
Jan 31 01:52:55 db01 kernel: 819136 pages of HIGHMEM
Jan 31 01:52:55 db01 kernel: 273905 reserved pages
Jan 31 01:52:55 db01 kernel: 369584 pages shared
Jan 31 01:52:55 db01 kernel: 40 pages swap cached
Jan 31 01:52:55 db01 kernel: Out of Memory: Killed process 3510 (cannaserver).

Jan 31 01:53:10 db01 kernel: Free swap:       4192648kB
Jan 31 01:53:10 db01 kernel: 1310720 pages of RAM
Jan 31 01:53:10 db01 kernel: 819136 pages of HIGHMEM
Jan 31 01:53:10 db01 kernel: 273905 reserved pages
Jan 31 01:53:10 db01 kernel: 366673 pages shared
Jan 31 01:53:10 db01 kernel: 35 pages swap cached
Jan 31 01:53:10 db01 kernel: Out of Memory: Killed process 3498 (htt_server).

Jan 31 01:53:12 db01 kernel: Free swap:       4192648kB
Jan 31 01:53:12 db01 kernel: 1310720 pages of RAM
Jan 31 01:53:12 db01 kernel: 819136 pages of HIGHMEM
Jan 31 01:53:12 db01 kernel: 273905 reserved pages
Jan 31 01:53:12 db01 kernel: 365995 pages shared
Jan 31 01:53:12 db01 kernel: 35 pages swap cached
Jan 31 01:53:12 db01 kernel: Out of Memory: Killed process 2782 (dsm_sa_datamgr3)
明明还有4G swap,为什么out of memory?

els

终于找到out of memory的原因
因为每天晚上的冷备份，oracle 单个大文件（10g,12G)写NFS盘导致的
小心使用NFS