I'm testing squid-2.7STABLE9 + COSS + ext4 + SSD now.
When enlarge the coss, eg: from 10240 to 20480, I can see success in
cache.log, but the coss file on disk did not change, after 3 times of
"squid -k reconfigure" the coss file size changed.
But some times later, the squid process exited, with nothing left in
cache.log. Just once in cache.log I found:
2011/01/12 11:10:04| assertion failed: coss/store_io_coss.c:215:
"cs->curstripe < (cs->numstripes - 1)"
So, I wondering if resize of coss online is supported perfectly, that
we can use it without anxiety.
BTW, is shrink of coss filesystem is supported? If it is, do I have to
do it online, or offline? By online, I means operates without restart
squid process, and the offline means opposite.
With squid-2.7STABLE9 + COSS + btrfs + SSD, reload can cause process
to stuck, with 100% CPU usage per squid process. I caught these info
in cache.log once:
2011/01/09 14:56:44| Killing RunCache, pid 59502
2011/01/09 14:56:44| kill 59502: (1) Operation not permitted
And kill of the process will make the process into a zombie. The
defunct process still using 100% CPU, which wasn't show in ps.
squid75 ~ # ps -eo pid,%cpu,cmd --sort=c
59343 2.7 [squid] <defunct>
59505 2.8 [squid] <defunct>
59380 2.9 [squid] <defunct>
59474 2.9 [squid] <defunct>
42558 3.4 [btrfs-endio-1]
43717 3.7 (squid) -YC -D -f squid73.conf
43925 4.0 (squid) -YC -D -f squid74.conf
42520 4.3 (squid) -YC -D -f squid75.conf
51532 4.4 (squid) -YC -D -f squid77.conf
18014 5.9 (squid) -YC -D -f squid72.conf
19465 7.9 (squid) -YC -D -f squid76.conf
59833 8.9 (squid) -YC -D -f squid79.conf
59803 9.4 (squid) -YC -D -f squid78.conf
59744 9.7 [squid] <defunct>
4511 10.8 (squid) -YC -D -f squid81.conf
4563 10.9 (squid) -YC -D -f squid85.conf
59705 12.0 [squid] <defunct>
4524 12.8 (squid) -YC -D -f squid82.conf
4550 12.9 (squid) -YC -D -f squid84.conf
4537 13.2 (squid) -YC -D -f squid83.conf
4498 29.9 (squid) -YC -D -f squid80.conf
squid75 ~ # ps auwx | grep -e defunct -e COMMAND$
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
squid 59343 2.8 0.0 0 0 ? Z<l Jan07 83:47
[squid] <defunct>
squid 59380 3.0 0.0 0 0 ? ZNl Jan07 88:37
[squid] <defunct>
squid 59474 3.0 0.0 0 0 ? ZNl Jan07 89:57
[squid] <defunct>
squid 59505 2.9 0.0 0 0 ? ZNl Jan07 86:20
[squid] <defunct>
squid 59705 12.0 0.0 0 0 ? Z<l Jan07 355:56
[squid] <defunct>
squid 59744 9.7 0.0 0 0 ? ZNl Jan07 288:11
[squid] <defunct>
Received on Wed Jan 12 2011 - 07:18:28 MST
This archive was generated by hypermail 2.2.0 : Wed Jan 12 2011 - 12:00:02 MST