| Gehel created this task. Gehel added projects: Wikidata-Query-Service, Discovery-Wikidata-Query-Service-Sprint, Operations. Herald added a subscriber: Aklapper. Herald added projects: Wikidata, Discovery. |
TASK DESCRIPTION
While investigating GC times of WDQS (T175919), it seems clear that memory allocation rates are peaking at more than what the GC can reasonably cope with. Investigating what is allocating memory in blazegraph and why might allow us to reduce allocation rate and improve stability / scalability of the service.
Ideas:
- configure a memory profiler on labs and / or production (jprofiler ?)
- instrument code to keep track of memory allocation per query, at least in some specific places
- ...
TASK DETAIL
EMAIL PREFERENCES
To: Gehel
Cc: Aklapper, Smalyshev, Gehel, Lahi, Gq86, Lucas_Werkmeister_WMDE, GoranSMilovanovic, Th3d3v1ls, Hfbn0, QZanden, EBjune, merbst, Avner, Zppix, debt, Jonas, FloNight, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, faidon, Mbch331, Jay8g, fgiunchedi
Cc: Aklapper, Smalyshev, Gehel, Lahi, Gq86, Lucas_Werkmeister_WMDE, GoranSMilovanovic, Th3d3v1ls, Hfbn0, QZanden, EBjune, merbst, Avner, Zppix, debt, Jonas, FloNight, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, faidon, Mbch331, Jay8g, fgiunchedi
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