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Re: [pcp] Recent QA failures

To: Ken McDonell <kenj@xxxxxxxxxxxxxxxx>
Subject: Re: [pcp] Recent QA failures
From: Nathan Scott <nathans@xxxxxxxxxx>
Date: Tue, 28 Apr 2015 03:50:00 -0400 (EDT)
Cc: pcp developers <pcp@xxxxxxxxxxx>
Delivered-to: pcp@xxxxxxxxxxx
In-reply-to: <006401d08162$113a35b0$33aea110$@internode.on.net>
References: <026e01d07fa2$874e9cd0$95ebd670$@internode.on.net> <1699060067.7689027.1430179931519.JavaMail.zimbra@xxxxxxxxxx> <006401d08162$113a35b0$33aea110$@internode.on.net>
Reply-to: Nathan Scott <nathans@xxxxxxxxxx>
Thread-index: AQFQrypyEwzA5vM7WhRPWDWLAh5YWAGlGsM2nlQ6BDBHpCaPGw==
Thread-topic: Recent QA failures

----- Original Message -----
> [...]
> This one is very strange.
> 
> For the regular file case there are 2 records in the file, there are 2
> records Appended, Added and Removed via the libpcp_pmda Queue services (as
> reported by -Dlibpmda for the PMDA).
> 
> But pmevent in the qa test sees 3 (!) records,  and the last one (after the 2
> expected records) is the empty string "" ... this smells more like an EOF
> problem, rather than a race at start up.

*nod*

> But, wait, there is more ... with diags enabled (-Dlibpmda) for the PMDA the
> test passes ... disable the diags and it fails (I've repeated both
> experiments several times).
> 
> Not sure where to look now .... suggestions would be most welcome.

Nothing concrete other than its gotta be one of pmdalogger or libpcp_pmda
(the -D observation above rules out libpcp and pmevent, I think).  Guess
that doesn't help hugely in narrowing it down though.  :|

cheers.

--
Nathan

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