Eliezer Croitoru-2 wrote > OK so after Amos did the calculations (Thanks) I assume that using lsof > will give us more clue about it. > The first thing to do is to start a ssh session into the server with the > setting: > ServerAliveInterval 30 > Added into the /etc/ssh/ssh_config (on the client side) > > When you do have this session running you wont have any troubles running > top or any other basic tests on the server while there is a degradation. > > Now this command is what you will need in order to make the suspicious > more accurate and maybe lead to something that can help you: > "lsof -u squid -a -i 4 -n -P" > (squid is the default username on centos for the proxy user) > > Dont try to run this command just like this out of the blue since the > output can be more then 60k lines long.. > > You should try to throw it into a file at the tmp dir so this: > "lsof -u squid -a -i 4 -n -P >/tmp/tmp_lsof.1" > Should be safe. > The next thing is to find out how many FD are in sum and how many are > ESTABLISHED etc.. so run these: > ##START > lsof -u squid -a -i 4 -n -P >/tmp/tmp_lsof.1 > cat /tmp/tmp_lsof.1 |wc -l > cat /tmp/tmp_lsof.1 |grep UDP |wc -l > cat /tmp/tmp_lsof.1 |grep ESTABLISHED |wc -l > cat /tmp/tmp_lsof.1 |grep TIME_WAIT |wc -l > cat /tmp/tmp_lsof.1 |grep CLOSE_WAIT |wc -l > cat /tmp/tmp_lsof.1 |grep LISTEN |wc -l > cat /tmp/tmp_lsof.1 |grep ":53" |wc -l > cat /tmp/tmp_lsof.1 |grep ":TPROXYPORT" |wc -l > ##END > (TPROXYPORT IS the port from squid.conf) > > Once you have all the above results before the degradation in it and > after we might have a clue about the source of the problem and whether > it comes from too much FD which are not being used but causing the > system to loop throw lots of them. hi , 1st of all , does i face a loop ?? anyway , ive made another test before the degredation , 1st 5 minutes of squid [root@squid ~]# cat /tmp/tmp_lsof.1 |wc -l 3398 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep UDP |wc -l 6 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep ESTABLISHED |wc -l 3134 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep TIME_WAIT |wc -l 0 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep CLOSE_WAIT |wc -l 1 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep LISTEN |wc -l 8 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep ":53" |wc -l 73 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep ":3129" |wc -l 5 [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# [root@squid ~]# lsof -u squid -a -i 4 -n -P >/tmp/tmp_lsof.1 cat /tmp/tmp_lsof.1 |wc -l [root@squid ~]# cat /tmp/tmp_lsof.1 |wc -l 3366 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep UDP |wc -l 6 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep ESTABLISHED |wc -l 3118 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep TIME_WAIT |wc -l 0 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep CLOSE_WAIT |wc -l 2 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep LISTEN |wc -l 8 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep ":53" |wc -l 82 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep ":3129" |wc -l 5 ================================================== after degredation and system close to dead ! [root@squid ~]# cat /tmp/tmp_lsof.1 |wc -l 3505 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep UDP |wc -l 6 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep ESTABLISHED |wc -l 3262 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep TIME_WAIT |wc -l 0 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep CLOSE_WAIT |wc -l 5 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep LISTEN |wc -l 8 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep ":53" |wc -l 57 [root@squid ~]# cat /tmp/tmp_lsof.1 |grep ":3129" |wc -l 4 ----- Dr.x -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/is-there-any-thing-wrong-from-cache-manager-logs-tp4663156p4663180.html Sent from the Squid - Users mailing list archive at Nabble.com.
