8.8.5 NGINX recv() failed (111: Connection refused)

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moebius
Posts: 18
Joined: Sat Sep 13, 2014 3:34 am

8.8.5 NGINX recv() failed (111: Connection refused)

Post by moebius »

Since 8.8.5, periodically our web services become unavailable. Once this occurs, the nginx.log fills up as follows. Restarting Zimbra restores the web services for a period of a few days. Any ideas on what I should look into here? We've not had this problem in years of uptime on previous versions.

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2018/01/03 10:36:24 [info] 18517#0: *56665 client 208.71.156.254:49224 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56665 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49224, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49224->173.239.65.92:993) <=> (173.239.65.92:36093->)
2018/01/03 10:36:24 [info] 18517#0: *56667 client 208.71.156.254:49225 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56667 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49225, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49225->173.239.65.92:993) <=> (173.239.65.92:36094->)
2018/01/03 10:36:24 [info] 18517#0: *56669 client 208.71.156.254:49226 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56669 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49226, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49226->173.239.65.92:993) <=> (173.239.65.92:36095->)
2018/01/03 10:36:24 [info] 18517#0: *56671 client 208.71.156.254:49227 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56671 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49227, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49227->173.239.65.92:993) <=> (173.239.65.92:36096->)
2018/01/03 10:36:24 [info] 18517#0: *56673 client 208.71.156.254:49228 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56673 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49228, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49228->173.239.65.92:993) <=> (173.239.65.92:36097->)
2018/01/03 10:36:24 [info] 18517#0: *56675 client 208.71.156.254:49229 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56675 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49229, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49229->173.239.65.92:993) <=> (173.239.65.92:36098->)
2018/01/03 10:36:24 [info] 18517#0: *56677 client 208.71.156.254:49230 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56677 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49230, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49230->173.239.65.92:993) <=> (173.239.65.92:36099->)
2018/01/03 10:36:24 [info] 18517#0: *56679 client 208.71.156.254:49231 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56679 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49231, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49231->173.239.65.92:993) <=> (173.239.65.92:36100->)
2018/01/03 10:36:24 [info] 18517#0: *56681 client 208.71.156.254:49232 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56681 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49232, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49232->173.239.65.92:993) <=> (173.239.65.92:36101->)
2018/01/03 10:36:24 [info] 18517#0: *56683 client 208.71.156.254:49233 connected to 173.239.65.92:993
2018/01/03 10:36:24 [error] 18517#0: *56683 recv() failed (111: Connection refused) while reading response from upstream, client: 208.71.156.254:49233, server: 173.239.65.92:993, login: "tbehary", upstream: 173.239.65.92:7143 (208.71.156.254:49233->173.239.65.92:993) <=> (173.239.65.92:36102->)
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moebius
Posts: 18
Joined: Sat Sep 13, 2014 3:34 am

Re: 8.8.5 NGINX recv() failed (111: Connection refused)

Post by moebius »

It looks like these errors we caused by another error.. mailbox.log shows a series of 'Failed to lock mailbox' errors..

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2018-01-03 10:26:43,693 ERROR [ImapServer-606] [ip=173.239.65.92;oip=166.177.248.16;via=173.239.65.92(nginx/1.7.1);ua=Zimbra/8.8.5_GA_1894;] mailbox - Failed to lock mailbox
2018-01-03 10:26:43,715 ERROR [ImapServer-597] [ip=173.239.65.92;oip=166.177.248.16;via=173.239.65.92(nginx/1.7.1);ua=Zimbra/8.8.5_GA_1894;] mailbox - Failed to lock mailbox
2018-01-03 10:27:00,216 ERROR [ImapServer-603] [ip=173.239.65.92;oip=166.177.248.16;via=173.239.65.92(nginx/1.7.1);ua=Zimbra/8.8.5_GA_1894;] mailbox - Failed to lock mailbox
2018-01-03 10:27:00,227 ERROR [ImapServer-607] [ip=173.239.65.92;oip=166.177.248.16;via=173.239.65.92(nginx/1.7.1);ua=Zimbra/8.8.5_GA_1894;] mailbox - Failed to lock mailbox
2018-01-03 10:27:00,226 ERROR [ImapServer-585] [ip=173.239.65.92;oip=166.177.248.16;via=173.239.65.92(nginx/1.7.1);ua=Zimbra/8.8.5_GA_1894;] mailbox - Failed to lock mailbox
2018-01-03 10:27:00,219 ERROR [ImapServer-591] [ip=173.239.65.92;oip=166.177.248.16;via=173.239.65.92(nginx/1.7.1);ua=Zimbra/8.8.5_GA_1894;] mailbox - Failed to lock mailbox
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