Thanks for reporting this, Marcel!
I've created a task for us to correct the behavior of our EL funnels:
Is the actual character limit of EL messages specified somewhere?
-Dmitry
On Fri, May 15, 2015 at 3:41 PM, Marcel Ruiz Forns <mforns(a)wikimedia.org>
wrote:
Hi Mobile,
Analyzing EventLogging logs we percieved that a significant share of
MobileWikiAppSavedPages, MobileWikiAppArticleSuggestions and
MobileWikiAppShareAFact events are failing validation.
*1) MobileWikiAppShareAFact: 1.5% not validating*
In this schema, the field "text" stores long fractions of text sometimes.
This exceeds the size limitation of EL, specially when the text contains
special characters, like chinese, greek, etc.
*2) MobileWikiAppArticleSuggestions: 1% not validating*
In this case, it's the field "readMoreList" that is sometimes very long,
specially when it contains special characters.
This, again, exceeds the log size limit.
*3) MobileWikiAppSavedPages: 1% not validating*
Some events do not contain the required field "appInstallID".
In cases 1) and 2) the percentage is not big overall, but it can be that
for a given language, a lot of events are lost.
EventLogging performance is not compromised by these validation errors,
but we are receiving monitoring alerts, and would like to maintain the
validation rate close to 100%.
Is it possible for you to somehow reduce the size of the logs of 1) and
2)?
If so, have in mind that the log size limit is 1k, and that the highest
priority for us would be 2).
Thank you!
Marcel
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