Re: [Xen-API] non-persistent stunnel connections

[Dave Scott <Dave.Scott@xxxxxxxxxxxxx>]

Hi Thomas,

Is that happening a lot?

It might be that the persistent connections are being closed too quickly by the 
master, so that when the slave tries to use them it gets a write() failure. 
I've been thinking we should look into this in a bit more detail.

Cheers,
Dave

> -----Original Message-----
> From: xen-api-bounces@xxxxxxxxxxxxx [mailto:xen-api-
> bounces@xxxxxxxxxxxxx] On Behalf Of Thomas Gazagnaire
> Sent: 21 June 2012 17:46
> To: xen-api@xxxxxxxxxxxxx
> Subject: [Xen-API] non-persistent stunnel connections
> 
> In one of my pool, I'm seeing a lot of:
> 
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel_cache] Cache contents: [ 10.219.67.16:443 (id
> 49243 / idle 0.00 age 0.03) ]
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel_cache] Removing stunnel id 49243 (idle 0.00)
> from the cache
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel] check_reusable: caught exception
> Unix.Unix_error(31, "write", ""); assuming not reusable
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel] get_reusable_stunnel: Found non-reusable
> stunnel in the cache. disconnecting from 10.219.67.16:443
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel_cache] Cache contents: [ 10.219.67.16:443  ]
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel] get_reusable_stunnel: stunnel cache is empty;
> creating a fresh connection to 10.219.67.16:443
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel] Using commandline: /usr/sbin/stunnel -fd
> 1811b806-762e-dfb2-341d-a61d81ccdf1b
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel] stunnel has pidty: (FEFork (40,9065))
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel] stunnel start: Log from stunnel: []
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||xmlrpc_client] stunnel pid: 9065 (cached = true)
> connected to 10.219.67.16:443
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||xmlrpc_client] with_recorded_stunnelpid task_opt=None
> s_pid=9065
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel_cache] Adding stunnel id 49244 (idle 0.00) to
> the cache
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||stunnel_cache] Cache contents: [ 10.219.67.16:443 (id
> 49244 / idle 0.00 age 0.03) ]
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39854 UNIX
> /var/xapi/xapi||xmlrpc_client] stunnel pid: 9065 (cached = true)
> returned stunnel to cache
> Jun 12 08:37:48 localhost xapi: [debug|cl09-A-13|39855 UNIX
> /var/xapi/xapi||mscgen] xapi=>xapi
> [label="<methodCall><methodName>SR.get_other_config</methodName><params
> ><param><value><string>OpaqueRef:e650c6da-04bb-0bec-1fae-
> 4f75b45e396b</string></value></param><param><value><string>OpaqueRef:9c
> f16f1d-0ecf-8984-c301-
> 0db39c597eb7</string></value></param></params></methodCall>"];
> 
> on a slave, this means (if I understand correctly) that stunnel is not
> able to create a persistent connection. Is there any reason to that ?
> _______________________________________________
> Xen-api mailing list
> Xen-api@xxxxxxxxxxxxx
> http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api

_______________________________________________
Xen-api mailing list
Xen-api@xxxxxxxxxxxxx
http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api