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I didn't see this show up on the list, so I'm trying again.<br>
<br>
----<br>
<br>
<div class="moz-text-flowed" style="font-family: -moz-fixed;
font-size: 14px;" lang="x-unicode">Been seeing this a bit lately
on a server with 96GB ram where the zil is limited to 48GB. Under
heavy NFS load (caused by user running parallel find/xargs/rm
clean job), it sends the machine into desparation memory and
causes it to be unreachable for a while. (the server is 24 x SSD,
and internal I/O load is ok, but the many concurrent NFS requests
cause it to die, sometimes requiring a reset. usually it recovers
in a few minutes, but it becomes unservicible from memory
shortage.<br>
<br>
I have some mdb/kmastat/kmausers/memstat output.
<br>
<br>
here's the kmastat break down.
<br>
<br>
Total [hat_memload] 15.8M 5155240 0
<br>
Total [kmem_msb] 22.0G 987112603 0
<br>
Total [kmem_firewall] 271M 411704261 895
<br>
Total [kmem_va] 40.8G 22314937 0
<br>
Total [kmem_default] 31.8G 4275706645 619
<br>
Total [kmem_io_4P] 44.7M 26714639 0
<br>
Total [kmem_io_4G] 108K 908 0
<br>
Total [kmem_io_2G] 100K 68 0
<br>
Total [bp_map] 0
7251 0
<br>
Total [umem_np] 0
728 0
<br>
Total [zfs_file_data] 118M 93380 0
<br>
Total [zfs_file_data_buf] 19.4G 22030035 0
<br>
Total [segkp] 256K 6787 0
<br>
Total [ip_minor_arena_sa] 512 72304 0
<br>
Total [ip_minor_arena_la] 64
29350 0
<br>
Total [spdsock] 0
1 0
<br>
Total [namefs_inodes] 64
27 0
<br>
------------------------------ ----- --------- --------- ------
---------- -----
<br>
<br>
the kmausers is almost 1MB.
<br>
<br>
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