854769 - arecibo is causing high load over short durations

Status: RESOLVED FIXED

(bugzilla.mozilla.org :: General, defect)

Description

[:glob ✱]

since we re-enabled arecibo, the load graphs on the webheads looks very "spiky".

it looks like if we generate a lot of warnings at once (eg. the bugmail.pm warning), we spawn an arecibo.pl process to send each warning.  these all run at the same time, causing high load (and probably not helping arecibo's ability to process the messages either).

we should serialise the sending of warnings to arecibo -- create a lock file and require each arecibo.pl process to acquire lock on it before they can send.

Comment 1

[:glob ✱]

Committing to: bzr+ssh://[e-mail]/bmo/4.2/
modified arecibo.pl
modified Bugzilla/Arecibo.pm
Committed revision 8693.

i also changed the error handler so it displays apache's default error page instead of the hard-coded one.