[Wikidata-bugs] [Maniphest] T309858: WDQS gives "Server error: JSON.parse: unexpected end of data at line 1 column 1 of the JSON data"

[Gehel]

Gehel closed this task as "Declined".
Gehel moved this task from Incoming to Blazegraph on the Wikidata-Query-Service 
board.
Gehel added a comment.


  It is mostly impossible to get Blazegraph to return a valid error message on 
timed out queries. This might get better once we switch to a different backend, 
but at the moment there isn't much that can be done.

TASK DETAIL
  https://phabricator.wikimedia.org/T309858

WORKBOARD
  https://phabricator.wikimedia.org/project/board/891/

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To: Gehel
Cc: Gehel, Bugreporter, Aklapper, William_Avery, Astuthiodit_1, AWesterinen, 
karapayneWMDE, Invadibot, MPhamWMF, maantietaja, CBogen, ItamarWMDE, Akuckartz, 
Nandana, Namenlos314, Lahi, Gq86, Lucas_Werkmeister_WMDE, GoranSMilovanovic, 
QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, 
Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] T309858: WDQS gives "Server error: JSON.parse: unexpected end of data at line 1 column 1 of the JSON data"

[William_Avery]

William_Avery added a comment.


  In T309858#7978977 , 
@Bugreporter wrote:
  
  > What do you see in your browser console, specifically the Network tab?
  
  The GET to query.wikidata.org has a response with no sign of any errors, but, 
looking in the HAR file I saved:
  
"content": {
  "mimeType": "application/sparql-results+json; charset=utf-8",
  "size": 0,
  "text": ""
}

TASK DETAIL
  https://phabricator.wikimedia.org/T309858

EMAIL PREFERENCES
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To: William_Avery
Cc: Bugreporter, Aklapper, William_Avery, Astuthiodit_1, AWesterinen, 
karapayneWMDE, Invadibot, MPhamWMF, maantietaja, CBogen, ItamarWMDE, Akuckartz, 
Nandana, Namenlos314, Lahi, Gq86, Lucas_Werkmeister_WMDE, GoranSMilovanovic, 
QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, 
Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] T309858: WDQS gives "Server error: JSON.parse: unexpected end of data at line 1 column 1 of the JSON data"

[Bugreporter]

Bugreporter added a comment.


  What do you see in your browser console, specifically the Network tab?

TASK DETAIL
  https://phabricator.wikimedia.org/T309858

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

To: Bugreporter
Cc: Bugreporter, Aklapper, William_Avery, Astuthiodit_1, AWesterinen, 
karapayneWMDE, Invadibot, MPhamWMF, maantietaja, CBogen, ItamarWMDE, Akuckartz, 
Nandana, Namenlos314, Lahi, Gq86, Lucas_Werkmeister_WMDE, GoranSMilovanovic, 
QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, 
Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] T309858: WDQS gives "Server error: JSON.parse: unexpected end of data at line 1 column 1 of the JSON data"

[Lucas_Werkmeister_WMDE]

Lucas_Werkmeister_WMDE added a project: Wikidata-Query-Service.

TASK DETAIL
  https://phabricator.wikimedia.org/T309858

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

To: Lucas_Werkmeister_WMDE
Cc: Aklapper, William_Avery, Astuthiodit_1, AWesterinen, karapayneWMDE, 
Invadibot, MPhamWMF, maantietaja, CBogen, ItamarWMDE, Akuckartz, Nandana, 
Namenlos314, Lahi, Gq86, Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, 
EBjune, merbst, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, Xmlizer, 
jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] T309858: WDQS gives "Server error: JSON.parse: unexpected end of data at line 1 column 1 of the JSON data"

[William_Avery]

William_Avery created this task.
William_Avery added a project: Wikidata.
Restricted Application added a subscriber: Aklapper.

TASK DESCRIPTION
  I get an error when submitting the following query, which works with "limit 
200".
  
SELECT DISTINCT ?item ?url WHERE {
  ?item ?prop ?claim.
  ?claim prov:wasDerivedFrom [ pr:P854 ?url]
FILTER 
(regex(STR(?url),"(\\?|&)(fbclid|gclid|utm_source|utm_medium|utm_campaign|utm_term|utm_content)"))}
 limit 500
  
  F35203538: Screenshot 2022-06-03 at 13-01-03 Wikidata Query Service.png 


TASK DETAIL
  https://phabricator.wikimedia.org/T309858

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

To: William_Avery
Cc: Aklapper, William_Avery, Astuthiodit_1, karapayneWMDE, Invadibot, 
maantietaja, ItamarWMDE, Akuckartz, Nandana, Lahi, Gq86, GoranSMilovanovic, 
QZanden, LawExplorer, _jensen, rosalieper, Scott_WUaS, Wikidata-bugs, aude, 
Mbch331
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