Hi All,
"vmstat 5" output when system freezes:
procs memory page disks faults cpu
r b w avm fre flt re pi po fr sr ad0 ad1 in sy cs
us sy id
0 0 0 8752M 126M 5663 0 0 0 4042 445 66 0 1219 7148
4870 3 2 95
0 0 0 8650M 145M 2167 0 0 0 3501 447 79 0 974 4042
3578 1 1 98
0 0 0 8374M 201M 3113 0 0 0 6790 441 5 0 1130 6670
3729 3 1 96
0 0 0 8252M 220M 2632 0 0 0 4014 435 4 0 726 11653
2401 2 1 97
0 0 0 8188M 224M 1625 0 0 0 2189 434 5 0 713 6714
2376 1 1 98
0 0 0 7992M 233M 1504 0 0 0 2254 433 2 0 867 2890
2868 1 1 98
4 0 0 8032M 216M 2145 0 0 0 1995 435 18 0 526 3769
2048 1 1 98
0 0 0 8180M 195M 1949 0 0 0 1741 435 50 0 593 3441
2363 1 1 98
0 0 0 8186M 178M 2859 0 0 0 2525 436 6 0 499 3313
1733 2 1 97
1 0 0 8410M 146M 2521 0 0 0 1764 440 11 0 736 67271
2121 4 2 94
0 0 0 8182M 205M 2910 0 0 0 6378 927 8 0 495 16043
1775 1 1 98
1 1 0 7944M 210M 3009 0 0 0 3696 438 8 0 522 4247
1963 2 1 97
0 0 0 8091M 169M 7529 0 0 0 3601 436 105 0 1359 75290
4400 9 3 88
0 0 0 8121M 141M 4607 0 0 0 3288 444 62 0 949 12169
3268 5 1 94
0 0 0 8044M 201M 1782 0 0 0 4954 1795 9 0 446 3025
1927 1 1 99
0 0 0 7916M 222M 1296 0 0 0 2671 438 5 0 525 2984
1920 1 1 98
1 0 0 7870M 230M 888 0 0 0 1677 432 8 0 473 6424
2126 1 1 99
0 0 0 7968M 228M 3375 0 0 0 2625 433 51 0 768 4100
2852 3 1 96
0 0 0 8238M 194M 7586 0 0 0 4758 436 88 0 1026 9631
3908 4 2 94
0 0 0 8293M 185M 3253 0 0 0 2362 437 52 0 747 4475
3105 2 1 97
I increased the vm.v_free_min, but did not help. It was a different
froze, the system was unreacheable even through IPMI, needed a hard reset.
Regards,
Csaba
2015.06.12. 20:17 keltezéssel, Adrian Chadd írta:
On 12 June 2015 at 10:57, Christopher Forgeron <csforge...@gmail.com> wrote:
I agree it shouldn't run out of memory. Here's what mine does under network
load, or rsync load:
2 0 9 1822M 1834M 0 0 0 0 14 8 0 0 22750 724 136119
0 23 77
0 0 9 1822M 1823M 0 0 0 0 0 8 0 0 44317 347 138151
0 16 84
0 0 9 1822M 1761M 0 0 0 0 17 8 0 0 23818 820 92198 0
12 88
0 0 9 1822M 1727M 0 0 0 0 14 8 0 0 40768 634 126688
0 17 83
0 0 9 1822M 8192B 0 8 0 0 15 3 3 0 9236 305 57149 0
33 67
That's with a 5 second vmstat output. After the 8KiB, the system is nearly
completely brain-dead and needs a hard power-off.
I've seen it go from 6 GiB free to 8KiB in 5 sec as well. Currently my large
machines are set to 12 GiB free to keep them from crashing, from what I
presume is just network load due to lots of iSCSI / NFS traffic on my 10GiB
network.
I haven't had time to type this up for the list yet, but I'm putting it here
just to make sure people know it's real.
Hi,
Then something is leaking or holding onto memory when it shouldn't be.
Try doing vmstat -z and vmstat -m in a one second loop, post the data
just before it falls over.
-adrian
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