[Wikidata-bugs] [Maniphest] [Created] T164219: LDF server fails on large page numbers

[Smalyshev]

Smalyshev created this task. Smalyshev added a project: Wikidata-Query-Service. Herald added a subscriber: Aklapper. Herald added projects: Wikidata, Discovery.

TASK DESCRIPTION

If LDF server is given a large page number for a big dataset - like https://query.wikidata.org/bigdata/ldf?page=1856001 - it takes a lot of time and ultimately fails with this error message:

May 01 20:07:40 wdqs1001 bash[5645]: WARN : RWStore.java:6868: WriteCacheDebug: 33469317120 - No WriteCache debug info
May 01 20:07:40 wdqs1001 bash[5645]: WARN : FixedAllocator.java:205: Physical address 33469317120 not accessible for Allocator of size 8192

TASK DETAIL

https://phabricator.wikimedia.org/T164219

EMAIL PREFERENCES

https://phabricator.wikimedia.org/settings/panel/emailpreferences/

To: Smalyshev
Cc: Aklapper, Smalyshev, QZanden, EBjune, merbst, Avner, debt, Gehel, Jonas, FloNight, Xmlizer, Izno, jkroll, Wikidata-bugs, Jdouglas, aude, Deskana, Manybubbles, Mbch331

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