Hi Monah,
Monah Baki wrote:
Hi all,
I'm running squid 2.6-stable17 on Freebsd 6.3. Machine is a 500MHz with
512MB RAM.
Don't you think that your system is a little low on resources even for a
low number of users?
./configure --prefix=/usr/local/squid
--enable-storeio=ufs,coss,diskd,null --enable-underscores
--with-large-files --enable-large-cache-files --enable-delay-pools
--disable-ident-lookups --enable-snmp --enable-cache-digests
--enable-underscores --enable-kill-parent-hack
--enable-removal-policies --enable-async-io --enable-kqueue
--enable-follow-x-forwarded-for
I think it's better to use "--enable-storeio=ufs,aufs,coss,diskd,null"
and remove "--enable-async-io".
I just have squid displaying the following error message:
2008/01/20 18:24:15| storeDiskdSend OPEN: (35) Resource temporarily
unavailable
2008/01/20 18:24:15| storeDiskdSend: msgsnd: (35) Resource temporarily
unavailable
2008/01/20 18:24:15| assertion failed: diskd/store_io_diskd.c:541:
"++send_errors < 100"
I have seen these error logs due to DISKD in the past. It went away
after I switched to UFS.
jubilee# ipcs -a
Message Queues:
T ID KEY MODE OWNER GROUP CREATOR
CGROUP CBYTES QNUM
QBYTES LSPID LRPID STIME RTIME CTIME
q 524288 942080 --rwa------ nobody nobody nobody
nobody 1280 40 2048
920 927 18:05:08 18:05:08 7:34:35
q 524289 942081 --rwa------ nobody nobody nobody
nobody 0 0 2048
927 920 18:05:08 18:05:08 7:34:35
Shared Memory:
T ID KEY MODE OWNER GROUP CREATOR
CGROUP NATTCH SEGSZ CPID LPID ATIME
DTIME CTIME
m 524288 942082 --rw------- nobody nobody nobody
nobody 1 339968 920 927 7:34:35
18:05:28 7:34:35
Semaphores:
T ID KEY MODE OWNER GROUP CREATOR
CGROUP NSEMS OTIME CTIME
There's only 4 users on this server, and it's been running for quite
sometime now.
I read that I need to increase the message queue limits, Im presuming
it's the "kern.ipc.msgmnb=16384". How can I monitor system before
anything happens. I can run squidclient mgr:info, but what do I need to
look for.
Configured thee system with following parameters:
kern.ipc.nmbclusters: 65536
kern.maxfiles=65536
kern.maxfilesperproc=32768
net.inet.ip.portrange.last=65535
kern.ipc.somaxconn=2048
kern.maxvnodes=100000
kern.ipc.msgmnb=16384
kern.ipc.msgmni=40
kern.ipc.msgseg=512
kern.ipc.msgssz=64
kern.ipc.msgtql=2048
options SHMSEG=16
options SHMMNI=41
options MSGSSZ=64
options MSGTQL=512
options MSGSEZ=2048
options SHMMNI=40
options SHMMAX=2097152
options SHMALL=4096
options MAXFILES=8192
options NMBCLUSTERS=32768
options MSGMNB=16384
options VFS_AIO
Did you compiled your kernel or are you loading these tunables dynamically?
I really am not an expert on this kernel compilation with FreeBSD.
But I use the following values:
options SHMSEG=128
options SHMMNI=256
options SHMMAX=50331648 # max shared memory segment size (bytes)
options SHMALL=16384 # max amount of shared memory (pages)
options MSGMNB=16384 # max # of bytes in a queue
options MSGMNI=48 # number of message queue identifiers
options MSGSEG=768 # number of message segments
options MSGSSZ=64 # size of a message segment
options MSGTQL=4096 # max messages in system
But I guess they are not relevant with 6.x because they are tunables
which you can load dynamically.
In the end if DISKD does not work for you, then I guess you should use
UFS, AUFS or COSS.
Since you only have 4 users, all of them will work fine for you...
Thanking you...
In my squid.conf:
cache_dir diskd /usr/local/squid/var/cache 28000 32 512 Q1=72 Q2=64
Thanks
BSD Networking, Microsoft Notworking
--
With best regards and good wishes,
Yours sincerely,
Tek Bahadur Limbu
System Administrator
(TAG/TDG Group)
Jwl Systems Department
Worldlink Communications Pvt. Ltd.
Jawalakhel, Nepal
http://www.wlink.com.np
http://teklimbu.wordpress.com
