| To: | Nathan Scott <nathans@xxxxxxxxxx> |
|---|---|
| Subject: | Re: JSON PMDA |
| From: | "Frank Ch. Eigler" <fche@xxxxxxxxxx> |
| Date: | Thu, 16 Apr 2015 18:57:12 -0400 |
| Cc: | David Smith <dsmith@xxxxxxxxxx>, Ken McDonell <kenj@xxxxxxxxxxxxxxxx>, pcp@xxxxxxxxxxx |
| Delivered-to: | pcp@xxxxxxxxxxx |
| In-reply-to: | <973741994.1544247.1429223824192.JavaMail.zimbra@xxxxxxxxxx> |
| References: | <54F9F92D.4010202@xxxxxxxxxx> <448002717.7934024.1427683964254.JavaMail.zimbra@xxxxxxxxxx> <552699FE.7040801@xxxxxxxxxx> <2139482617.15593599.1428634701360.JavaMail.zimbra@xxxxxxxxxx> <552D6524.1030803@xxxxxxxxxx> <y0mfv80ubzj.fsf@xxxxxxxx> <552FD368.6030602@xxxxxxxxxx> <20150416152834.GB6822@xxxxxxxxxx> <973741994.1544247.1429223824192.JavaMail.zimbra@xxxxxxxxxx> |
| User-agent: | Mutt/1.4.2.2i |
Hi - > > ... but according to normal practice, a "restarted pmda" means > > "restarted pmcd", which means active pcp contexts are dropped, which > > means clients are to reconnect & recalculate name->pmid mappings. > > Some more context :- historically (and still now for many PMDAs) a SIGHUP > to pmcd was the default agent-restart/pmcd-reconfigure mechanism & that'll > become the default again soon for all PMDAs (so, no loss of connection for > clients). [...] OK, that does change the picture (with respect to demands on the pmdas, not with respect to expectations by the clients). I hope it will not be difficult to audit them. > Is there any reason not to tackle this problem, Frank? There's a > possible solution proposed reusing existing code, & other PMDAs that > will benefit - seems like a no-brainer that we should Just Do It. If it's a reasonably small amount of incremental work, agreed. - FChE |
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