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回复 #19 Coolriver 的帖子
早上又仔细的分析了一下,发现了一些新情况
可能我描述的不对,不是mysql内存溢出,而是kernel的内存溢出
摘出一段系统日志,如下
May 3 14:30:07 DST-12 kernel: Node 0 HighMem per-cpu: empty
May 3 14:30:07 DST-12 kernel: Free pages: 41692kB (0kB HighMem)
May 3 14:30:07 DST-12 kernel: Active:934890 inactive:1079143 dirty:0 writeback:0 unstable:0 free:10423 slab:3572 mapped-file:973 ma
pped-anon:2014509 pagetables:6499
May 3 14:30:07 DST-12 kernel: Node 0 DMA free:11116kB min:12kB low:12kB high:16kB active:0kB inactive:0kB present:10760kB pages_sca
nned:0 all_unreclaimable? yes
May 3 14:30:07 DST-12 kernel: lowmem_reserve[]: 0 3251 8049 8049
May 3 14:30:07 DST-12 kernel: Node 0 DMA32 free:23780kB min:4632kB low:5788kB high:6948kB active:1672208kB inactive:1590880kB prese
nt:3329568kB pages_scanned:7393923 all_unreclaimable? yes
May 3 14:30:07 DST-12 kernel: lowmem_reserve[]: 0 0 4797 4797
May 3 14:30:07 DST-12 kernel: Node 0 Normal free:6796kB min:6836kB low:8544kB high:10252kB active:2067656kB inactive:2724708kB pres
ent:4912640kB pages_scanned:16569186 all_unreclaimable? yes
May 3 14:30:07 DST-12 kernel: lowmem_reserve[]: 0 0 0 0
May 3 14:30:07 DST-12 kernel: Node 0 HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB present:0kB pages_scan
ned:0 all_unreclaimable? no
May 3 14:30:07 DST-12 kernel: lowmem_reserve[]: 0 0 0 0
May 3 14:30:07 DST-12 kernel: Node 0 DMA: 3*4kB 6*8kB 3*16kB 6*32kB 3*64kB 3*128kB 0*256kB 0*512kB 2*1024kB 0*2048kB 2*4096kB = 111
16kB
May 3 14:30:07 DST-12 kernel: Node 0 DMA32: 1*4kB 24*8kB 8*16kB 7*32kB 5*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 5*4096kB =
23780kB
May 3 14:30:07 DST-12 kernel: Node 0 Normal: 129*4kB 1*8kB 8*16kB 6*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 1*4096kB
= 6796kB
May 3 14:30:07 DST-12 kernel: Node 0 HighMem: empty
May 3 14:30:07 DST-12 kernel: 1330 pagecache pages
May 3 14:30:07 DST-12 kernel: Swap cache: add 1296188, delete 1295948, find 40974/74910, race 0+1077
May 3 14:30:07 DST-12 kernel: Free swap = 0kB
May 3 14:30:07 DST-12 kernel: Total swap = 4192956kB
May 3 14:30:07 DST-12 kernel: Free swap: 0kB
May 3 14:30:07 DST-12 kernel: 2293760 pages of RAM
May 3 14:30:07 DST-12 kernel: 250204 reserved pages
May 3 14:30:07 DST-12 kernel: 4057 pages shared
May 3 14:30:07 DST-12 kernel: 248 pages swap cached
May 3 14:30:07 DST-12 kernel: Out of memory: Killed process 3408 (mysqld). |
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