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Investigate HTTP 500 on POST request to WDQS
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Description

While investigating T198042, we realized that there is a high number of HTTP 500 errors on POST requests to https://query.wikidata.org/sparql. Those match a UA / IP which is being banned. Those requests should be 403 and not 500.

Details

SubjectRepoBranchLines +/-
Fix time display errorwikidata/query/rdfmaster+31 -4
Customize query in gerrit

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StatusSubtypeAssignedTask
 ResolvedNoneT198042 WDQS timeout on the public eqiad cluster
 ResolvedGehelT198055 Investigate HTTP 500 on POST request to WDQS

Event Timeline

Gehel created this task.Jun 25 2018, 7:14 AM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJun 25 2018, 7:14 AM
Gehel updated the task description. (Show Details)Jun 25 2018, 7:15 AM
Smalyshev subscribed.Jun 25 2018, 8:22 AM

Looks like related to this in the logs:

java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: Year

Which is probably because of this: https://stackoverflow.com/questions/25229124/format-instant-to-string

gerritbot subscribed.Jun 25 2018, 8:22 AM

Change 441776 had a related patch set uploaded (by Smalyshev; owner: Smalyshev):
[wikidata/query/rdf@master] Fix time display error

https://gerrit.wikimedia.org/r/441776

gerritbot added a project: Patch-For-Review.Jun 25 2018, 8:22 AM
gerritbot added a comment.Jun 25 2018, 5:12 PM

Change 441776 merged by jenkins-bot:
[wikidata/query/rdf@master] Fix time display error

https://gerrit.wikimedia.org/r/441776

Lydia_Pintscher moved this task from incoming to monitoring on the Wikidata board.Jun 26 2018, 7:37 AM
Smalyshev moved this task from Backlog to Done on the Discovery-Wikidata-Query-Service-Sprint board.Jun 27 2018, 8:11 PM

I suspect that was the cause of 500's? Do we have them anymore? If not, we can resolve this.

Smalyshev triaged this task as Medium priority.Jun 28 2018, 5:29 AM
Smalyshev moved this task from Incoming to Current work on the Wikidata-Query-Service board.
Gehel added a comment.Jun 29 2018, 10:44 PM

Looks good, we can close this.

Gehel closed this task as Resolved.Jun 29 2018, 10:44 PM
Gehel claimed this task.
• Vvjjkkii renamed this task from Investigate HTTP 500 on POST request to WDQS to sdaaaaaaaa.Jul 1 2018, 1:02 AM
• Vvjjkkii reopened this task as Open.
• Vvjjkkii removed Gehel as the assignee of this task.
• Vvjjkkii raised the priority of this task from Medium to High.
• Vvjjkkii added projects: CheckUser, Connected-Open-Heritage-Batch-uploads (RAÄ-KMB_1_2017-02), Tamil-Sites, Gamepress, Hashtags, Jade, KartoEditor, Language-2018-Apr-June, New-Editor-Experiences, Mail, TCB-Team (now WMDE-TechWish).
• Vvjjkkii updated the task description. (Show Details)
• Vvjjkkii removed subscribers: gerritbot, Aklapper.
CommunityTechBot renamed this task from sdaaaaaaaa to Investigate HTTP 500 on POST request to WDQS.Jul 2 2018, 10:21 AM
CommunityTechBot closed this task as Resolved.
CommunityTechBot assigned this task to Gehel.
CommunityTechBot lowered the priority of this task from High to Medium.
CommunityTechBot updated the task description. (Show Details)
CommunityTechBot removed projects: TCB-Team (now WMDE-TechWish), Mail, New-Editor-Experiences, Language-2018-Apr-June, KartoEditor, Jade, Hashtags, Gamepress, Tamil-Sites, Connected-Open-Heritage-Batch-uploads (RAÄ-KMB_1_2017-02), CheckUser.
CommunityTechBot added subscribers: gerritbot, Aklapper.
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