VPS hang

chachaker · 27. 12. 2012.

Pozdrav,

S vremena na vreme VPS server koji koristimo postane nedostupan, svi servisi su nedostupni i jedina pomoc je restart od strane hostinga. U pocetku smo se nagadjali mi i oni do koga je, receno nam je da MySQL baza koju koristimo nije optimizovana (sto je istina, jer nikada optimizaciju nismo radili niti znam to da uradim). U svakom slucaju prebacili su nas tada na drugi server i radilo je ok.

Od pre nekoliko nedelja isti simptomi, a pocelo je sve sa neuspesnim automatskim update-om cPanela, sto se moze videti i u poruci koja mi stize na mejl svake nedelje:
cPanel update hanging

cPanel on b...

Dec 24 (3 days ago)

/usr/local/cpanel/scripts/upcp was running as pid '13263' for longer than 6 hours. cPanel will kill this process and run a new upcp in its place.
cPanel on b...

Dec 24 (3 days ago)

/usr/local/cpanel/scripts/upcp was running as pid '14623' for longer than 6 hours. cPanel will kill this process and run a new upcp in its place.

Takodje tu je i izvestaj o hang procesu (jedan od mnogih):
The chkservd sub-process with pid 17768 ran for 15218 seconds. This sub-process was terminated when it exceeded the time allowed between checks, which is 300 seconds. To determine why, you can check /var/log/chkservd.log and /usr/local/cpanel/logs/tailwatchd_log.

Primary IP:

Service:
chkservd
Notification Type:
hang
Memory Information:
Used: 481MB
Available: 18MB
Installed: 497MB
Load Information:
245.49 252.75 260.78
Uptime:
2 days, 11 hours, 11 seconds
IOStat Information:
avg-cpu: %user %nice %system %iowait %steal %idle
2.16 1.55 20.71 16.06 0.00 59.52
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 347.13 11341.42 1177.19 1996016744 207178474
sda1 0.00 0.08 0.00 13978 6
sda2 111.25 4609.82 132.64 811298490 23342912
sda3 235.74 6731.31 1041.58 1184666566 183310632
sda4 0.00 0.00 0.00 18 0
sda5 0.13 0.21 2.98 37244 524924
ChkServd Version:
15.1

Da li neko moze iz gornjih podataka da mi razjasni eventualne uzrocnike problema, kako bih znao sta dalje ciniti. Proverio sam i log fajlove ali meni to nije razumljivo. Da napomenem da na shared hostingu koji smo koristili (druga firma) nije bilo ovakvih problema niti ovako ucestalih, a preselili smo se zbog prostora koji nam je trebao.

27. 12. 2012.	#1
chachaker Bogdan Trifunovic Na probnom radu Datum učlanjenja: 27.12.2011 Poruke: 11 Hvala: 5 5 "Hvala" u 1 poruci	VPS hang Pozdrav, S vremena na vreme VPS server koji koristimo postane nedostupan, svi servisi su nedostupni i jedina pomoc je restart od strane hostinga. U pocetku smo se nagadjali mi i oni do koga je, receno nam je da MySQL baza koju koristimo nije optimizovana (sto je istina, jer nikada optimizaciju nismo radili niti znam to da uradim). U svakom slucaju prebacili su nas tada na drugi server i radilo je ok. Od pre nekoliko nedelja isti simptomi, a pocelo je sve sa neuspesnim automatskim update-om cPanela, sto se moze videti i u poruci koja mi stize na mejl svake nedelje: cPanel update hanging cPanel on b... Dec 24 (3 days ago) /usr/local/cpanel/scripts/upcp was running as pid '13263' for longer than 6 hours. cPanel will kill this process and run a new upcp in its place. cPanel on b... Dec 24 (3 days ago) /usr/local/cpanel/scripts/upcp was running as pid '14623' for longer than 6 hours. cPanel will kill this process and run a new upcp in its place. Takodje tu je i izvestaj o hang procesu (jedan od mnogih): The chkservd sub-process with pid 17768 ran for 15218 seconds. This sub-process was terminated when it exceeded the time allowed between checks, which is 300 seconds. To determine why, you can check /var/log/chkservd.log and /usr/local/cpanel/logs/tailwatchd_log. Primary IP: Service: chkservd Notification Type: hang Memory Information: Used: 481MB Available: 18MB Installed: 497MB Load Information: 245.49 252.75 260.78 Uptime: 2 days, 11 hours, 11 seconds IOStat Information: avg-cpu: %user %nice %system %iowait %steal %idle 2.16 1.55 20.71 16.06 0.00 59.52 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sda 347.13 11341.42 1177.19 1996016744 207178474 sda1 0.00 0.08 0.00 13978 6 sda2 111.25 4609.82 132.64 811298490 23342912 sda3 235.74 6731.31 1041.58 1184666566 183310632 sda4 0.00 0.00 0.00 18 0 sda5 0.13 0.21 2.98 37244 524924 ChkServd Version: 15.1 Da li neko moze iz gornjih podataka da mi razjasni eventualne uzrocnike problema, kako bih znao sta dalje ciniti. Proverio sam i log fajlove ali meni to nije razumljivo. Da napomenem da na shared hostingu koji smo koristili (druga firma) nije bilo ovakvih problema niti ovako ucestalih, a preselili smo se zbog prostora koji nam je trebao.