Last modified: 2014-09-25 14:13:07 UTC
For some requests of the bits caches from esams and ulso, X-Analytics headers are php=zend;php=zend instead of php=zend . Eqiad caches are not affected. Text, mobile, upload caches are not affected. The following table shows the counts of both values per host for 2014-09-05T10:xx:xx. +------------+---------------------+----------------------------+ | Count | Count | hostname | | "php=zend" | "php=zend;php=zend" | | +------------+---------------------+----------------------------+ | 2476134 | 12924023 | cp3019.esams.wikimedia.org | | 2447977 | 12946793 | cp3020.esams.wikimedia.org | | 2464526 | 12931021 | cp3021.esams.wikimedia.org | | 2460986 | 12939036 | cp3022.esams.wikimedia.org | | 915398 | 4171007 | cp4001.ulsfo.wmnet | | 914249 | 4179542 | cp4002.ulsfo.wmnet | | 914064 | 4179900 | cp4003.ulsfo.wmnet | | 883786 | 4203428 | cp4004.ulsfo.wmnet | +------------+---------------------+----------------------------+
Ouch, this happens because I did not tie my code to tier 1 (eqiad) caches in bits. I'll add a check on monday, sorry for the problem.
It should be solved with the release of this patch; However, some content may still have duplicate headers in its cache. https://gerrit.wikimedia.org/r/#/c/159026/
The 'php=zend;php=zend' is gone. But it seems that now requests to https://bits.wikimedia.org/geoiplookup https://bits.wikimedia.org/event.gif https://geoiplookup.wikimedia.org/ no longer come with any 'php' tag (on bits caches from esams and ulsfo). (I guess one can make the point that this is ok, as those requests get handled differently. I just wanted to check that the lack of 'php' tag is expected here.)
Hi, while in some cases this would be expected, this needs to be figured out better; also, I guess we're marking php=zend some requests that in reality originate from the hhvm servers - and that will need correcting. I'm working on a better solution, I'll update this ticket soon.
Are you all aware of this from Ori? https://gerrit.wikimedia.org/r/#/c/157841/
(In reply to Andrew Otto from comment #5) > Are you all aware of this from Ori? > > https://gerrit.wikimedia.org/r/#/c/157841/ My comment there from 3 weeks ago is still unanswered, so I am not sure that people are still interested in that change.
