Discovery/Status updates/2019-06-24

This is the weekly update for the week starting 2019-06-24

Discussions

We needed a few alerts to happen when / if mjolnir starts misbehaving [1]
Mathew created an Icinga plugin to check number of eligible masters [2]
Mathew also created a WDQS reboot cookbook [3]
The team worked on implementing a match for any-language label (haslabel:*) [4]
We were getting errors because MediaWiki-Vagrant: ES_PATH_CONF must be set to the configuration path [5], thanks Tgr for the fix!
There was a PHP error from CirrusSearch/RequestLogger: "Array to string conversion" that David fixed [6]
There was an error where ascii folding behaved differently for autocomplete vs. search that David worked on [7]
David worked on another PHP warning where: Invalid argument supplied for foreach() [8]
Gehel and the team did some capacity planning: for Elastic via replaying prod traffic at a higher velocity at our dallas DC, findings to inform our hardware asks and to be documented in wikitech [9]

Stas added capability to include wildcards into federation whitelist [10]. This allows adding endpoints (such as DBPedia) which require various URL parameters.
Stas added ability to use variable as endpoint for MWAPI service [11]
Stas added federated query metrics to WDQS [12]
Stas finished upgrade of Blazegraph to Sesame 2.8 [13]
Stas fixed JSON output format breakage due to upgrade above [14]
Stas fixed some bad strings in WDQS data that confused Blazegraph [15]

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