[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-05-09 Thread Gehel 
Gehel closed this task as "Resolved".

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse, Gehel
Cc: RKemper, bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, 
Suran38, Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, 
maantietaja, Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, 
Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, 
Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Neuronton, Scott_WUaS, 
Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, 
Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-13 Thread gerritbot 
gerritbot added a comment.


  Change 779831 **merged** by jenkins-bot:
  
  [operations/alerts@master] team-search-platform: remove 
BlazegraphJvmQuakeWarnGC
  
  https://gerrit.wikimedia.org/r/779831

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse, gerritbot
Cc: RKemper, bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, 
Suran38, Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, 
maantietaja, Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, 
Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, 
Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Neuronton, Scott_WUaS, 
Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, 
Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-13 Thread gerritbot 
gerritbot added a comment.


  Change 779440 **merged** by Bking:
  
  [operations/puppet@production] wdqs: activate jvmquake at 300:5
  
  https://gerrit.wikimedia.org/r/779440

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse, gerritbot
Cc: RKemper, bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, 
Suran38, Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, 
maantietaja, Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, 
Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, 
Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Neuronton, Scott_WUaS, 
Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, 
Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-13 Thread gerritbot 
gerritbot added a comment.


  Change 779831 had a related patch set uploaded (by DCausse; author: DCausse):
  
  [operations/alerts@master] team-search-platform: remove 
BlazegraphJvmQuakeWarnGC
  
  https://gerrit.wikimedia.org/r/779831

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

EMAIL PREFERENCES
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To: dcausse, gerritbot
Cc: RKemper, bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, 
Suran38, Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, 
maantietaja, Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, 
Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, 
Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Neuronton, Scott_WUaS, 
Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, 
Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-12 Thread gerritbot 
gerritbot added a project: Patch-For-Review.

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse, gerritbot
Cc: RKemper, bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, 
Suran38, Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, 
maantietaja, Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, 
Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, 
Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Neuronton, Scott_WUaS, 
Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, 
Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-12 Thread gerritbot 
gerritbot added a comment.


  Change 779440 had a related patch set uploaded (by DCausse; author: DCausse):
  
  [operations/puppet@production] wdqs: activate jvmquake at 300:5
  
  https://gerrit.wikimedia.org/r/779440

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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

To: dcausse, gerritbot
Cc: RKemper, bking, Aklapper, dcausse, Astuthiodit_1, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-07 Thread RKemper 
RKemper removed a project: Patch-For-Review.

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse, RKemper
Cc: RKemper, bking, Aklapper, dcausse, Astuthiodit_1, 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, 
Fernandobacasegua34, 786, Suran38, Biggs657, Lalamarie69, Juan90264, 
Alter-paule, Beast1978, Un1tY, Hook696, Kent7301, joker88john, CucyNoiD, 
Gaboe420, Giuliamocci, Cpaulf30, Af420, Bsandipan, Lewizho99, Maathavan, 
Neuronton
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-07 Thread RKemper 
RKemper reopened this task as "In Progress".
RKemper added a comment.


  Oops, I just meant to move on workboard, not sure how I closed it as well

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse, RKemper
Cc: RKemper, bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, 
Suran38, Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, 
maantietaja, Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, 
Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, 
Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Neuronton, Scott_WUaS, 
Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, 
Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-07 Thread RKemper 
RKemper closed this task as "Resolved".
RKemper moved this task from Needs review to Waiting on the Discovery-Search 
(Current work) board.
RKemper added a comment.


  Moving to `Waiting` while we see how the newest settings do

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

WORKBOARD
  https://phabricator.wikimedia.org/project/board/1227/

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To: dcausse, RKemper
Cc: RKemper, bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, 
Suran38, Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, 
maantietaja, Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, 
Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, 
Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Neuronton, Scott_WUaS, 
Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, 
Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-07 Thread Stashbot 
Stashbot added a comment.


  Mentioned in SAL (#wikimedia-operations) [2022-04-07T17:50:24Z]  
T293862  Removed touched files so 
that it'll be easier to see when the new jvmquake threshold is crossed: 
`ryankemper@cumin1001:~$ sudo -E cumin 'A:wdqs-public' "rm -fv 
'/tmp/wdqs_blazegraph_jvmquake_warn_gc'"`

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse, Stashbot
Cc: RKemper, bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, 
Suran38, Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, 
maantietaja, Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, 
Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, 
Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Neuronton, Scott_WUaS, 
Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, 
Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-07 Thread RKemper 
RKemper added a comment.


  To check for presence of touched file:
  
ryankemper@cumin1001:~$ sudo -E cumin 'A:wdqs-public' '[ -f 
"/tmp/wdqs_blazegraph_jvmquake_warn_gc" ] && echo yes || echo no'
11 hosts will be targeted:
wdqs[2001-2004,2007].codfw.wmnet,wdqs[1004-1007,1012-1013].eqiad.wmnet
Ok to proceed on 11 hosts? Enter the number of affected hosts to confirm or 
"q" to quit 11
= NODE GROUP =
(5) wdqs[2001-2002,2007].codfw.wmnet,wdqs[1004-1005].eqiad.wmnet
- OUTPUT of '[ -f "/tmp/wdqs_...o yes || echo no' -
no
= NODE GROUP =
(6) wdqs[2003-2004].codfw.wmnet,wdqs[1006-1007,1012-1013].eqiad.wmnet
- OUTPUT of '[ -f "/tmp/wdqs_...o yes || echo no' -
yes

PASS |███| 100% (11/11) 
[00:00<00:00, 12.38hosts/s]
FAIL ||   
0% (0/11) [00:00= 100.0% threshold) for command: '[ -f 
"/tmp/wdqs_...o yes || echo no'.
100.0% (11/11) success ratio (>= 100.0% threshold) of nodes successfully 
executed all commands.
  
  To clear away current touched files:
  
ryankemper@cumin1001:~$ sudo -E cumin 'A:wdqs-public' "rm -fv 
'/tmp/wdqs_blazegraph_jvmquake_warn_gc'"
11 hosts will be targeted:
wdqs[2001-2004,2007].codfw.wmnet,wdqs[1004-1007,1012-1013].eqiad.wmnet
Ok to proceed on 11 hosts? Enter the number of affected hosts to confirm or 
"q" to quit 11
= NODE GROUP =
(6) wdqs[2003-2004].codfw.wmnet,wdqs[1006-1007,1012-1013].eqiad.wmnet
- OUTPUT of 'rm -fv '/tmp/wdq...vmquake_warn_gc'' -
removed '/tmp/wdqs_blazegraph_jvmquake_warn_gc'

PASS |███| 100% (11/11) 
[00:00<00:00, 12.55hosts/s]
FAIL ||   
0% (0/11) [00:00= 100.0% threshold) for command: 'rm -fv 
'/tmp/wdq...vmquake_warn_gc''.
100.0% (11/11) success ratio (>= 100.0% threshold) of nodes successfully 
executed all commands.

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse, RKemper
Cc: RKemper, bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, 
Suran38, Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, 
maantietaja, Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, 
Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, 
Gaboe420, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Neuronton, Scott_WUaS, 
Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, 
Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-07 Thread Stashbot 
Stashbot added a comment.


  Mentioned in SAL (#wikimedia-operations) [2022-04-07T17:44:11Z]  
T293862  Rolling restart of wdqs 
public is complete; new jvmquake settings have been uptaken on wdqs public 
hosts: 
`-agentpath:/usr/lib/libjvmquake.so=1000,5,0,warn=60,touch=/tmp/wdqs_blazegraph_jvmquake_warn_gc`

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

EMAIL PREFERENCES
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To: dcausse, Stashbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-07 Thread Stashbot 
Stashbot added a comment.


  Mentioned in SAL (#wikimedia-operations) [2022-04-07T17:31:13Z]  
[WDQS] T293862  Need to do a rolling 
restart of wdqs public; going to just roll a full deploy since it's equal work

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse, Stashbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-07 Thread gerritbot 
gerritbot added a comment.


  Change 776857 **merged** by Bking:
  
  [operations/puppet@production] wdqs: tune jvmquake settings (take 2)
  
  https://gerrit.wikimedia.org/r/776857

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

EMAIL PREFERENCES
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To: dcausse, gerritbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-04 Thread gerritbot 
gerritbot added a comment.


  Change 776857 had a related patch set uploaded (by DCausse; author: DCausse):
  
  [operations/puppet@production] wdqs: tune jvmquake settings (take 2)
  
  https://gerrit.wikimedia.org/r/776857

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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

To: dcausse, gerritbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-01 Thread dcausse 
dcausse added a comment.


  Actually wdqs2007, wdqs2004 and wdqs2003 also triggered jvmquake, GC activity 
increased and wdqs2007 & wdqs2003 were unresponsive for a couple minutes. For 
wdqs2004 there are no visible blips in the various graph. I guess we should 
relax the settings a bit more.

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To: dcausse
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-04-01 Thread dcausse 
dcausse added a comment.


  With the settings we properly detected wdqs1006 going down for 30minutes at 
`2022-04-22T12:30:00` (this 2minutes after the first blip in the graph).
  Unfortunately there was a false positive wdqs1012 at `2022-04-22T10:00:00` as 
this machine was unavailable from 2 minutes only.
  Unsure if it's still too sensitive or if we can accept having a couple false 
positives.

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To: dcausse
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-31 Thread gerritbot 
gerritbot added a comment.


  Change 775254 **merged** by Ryan Kemper:
  
  [operations/puppet@production] wdqs: tune jvmquake settings
  
  https://gerrit.wikimedia.org/r/775254

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To: dcausse, gerritbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-31 Thread gerritbot 
gerritbot added a comment.


  Change 775254 had a related patch set uploaded (by Ryan Kemper; author: 
DCausse):
  
  [operations/puppet@production] wdqs: tune jvmquake settings
  
  https://gerrit.wikimedia.org/r/775254

TASK DETAIL
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To: dcausse, gerritbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-29 Thread gerritbot 
gerritbot added a comment.


  Change 773758 **merged** by jenkins-bot:
  
  [operations/alerts@master] team-search-platform: add jvmquake alerting
  
  https://gerrit.wikimedia.org/r/773758

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To: dcausse, gerritbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-25 Thread gerritbot 
gerritbot added a project: Patch-For-Review.

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To: dcausse, gerritbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-25 Thread gerritbot 
gerritbot added a comment.


  Change 773758 had a related patch set uploaded (by DCausse; author: DCausse):
  
  [operations/alerts@master] team-search-platform: add jvmquake alerting
  
  https://gerrit.wikimedia.org/r/773758

TASK DETAIL
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To: dcausse, gerritbot
Cc: bking, Aklapper, dcausse, Astuthiodit_1, 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, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-24 Thread Stashbot 
Stashbot added a comment.


  Mentioned in SAL (#wikimedia-operations) [2022-03-24T21:11:20Z]  
bking@cumin1001 restarting blazegraph on wdqs[1003-1013].eqiad.wmnet for 
T293862 

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Cc: bking, Aklapper, dcausse, Astuthiodit_1, 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, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-24 Thread Maintenance_bot 
Maintenance_bot removed a project: Patch-For-Review.

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To: dcausse, Maintenance_bot
Cc: bking, Aklapper, dcausse, Astuthiodit_1, 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, 
Fernandobacasegua34, 786, Suran38, Biggs657, Lalamarie69, Juan90264, 
Alter-paule, Beast1978, Un1tY, Hook696, Kent7301, joker88john, CucyNoiD, 
Gaboe420, Giuliamocci, Cpaulf30, Af420, Bsandipan, Lewizho99, Maathavan, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-24 Thread gerritbot 
gerritbot added a comment.


  Change 770978 **merged** by Bking:
  
  [operations/puppet@production] [wdqs] test jvmquake options on the public 
cluster
  
  https://gerrit.wikimedia.org/r/770978

TASK DETAIL
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To: dcausse, gerritbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, ItamarWMDE, Un1tY, Akuckartz, 
Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, 
Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, 
_jensen, rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-16 Thread Stashbot 
Stashbot added a comment.


  Mentioned in SAL (#wikimedia-operations) [2022-03-16T09:36:05Z]  
T293862 : manually restarted 
blazegraph on wdqs1010 with 
"-agentpath:/usr/lib/libjvmquake.so=1000,1,0,warn=30,touch=/tmp/jvmquake"

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To: dcausse, Stashbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, Un1tY, Akuckartz, Hook696, Kent7301, 
joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, Giuliamocci, Cpaulf30, 
Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, GoranSMilovanovic, 
QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, _jensen, 
rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, Wikidata-bugs, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-15 Thread gerritbot 
gerritbot added a project: Patch-For-Review.

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To: dcausse, gerritbot
Cc: bking, Aklapper, dcausse, Fernandobacasegua34, Astuthiodit_1, 786, Suran38, 
Biggs657, karapayneWMDE, Invadibot, Lalamarie69, MPhamWMF, maantietaja, 
Juan90264, Alter-paule, Beast1978, CBogen, Un1tY, Akuckartz, Hook696, Kent7301, 
joker88john, CucyNoiD, Nandana, Namenlos314, Gaboe420, Giuliamocci, Cpaulf30, 
Lahi, Gq86, Af420, Bsandipan, Lucas_Werkmeister_WMDE, GoranSMilovanovic, 
QZanden, EBjune, merbst, LawExplorer, Lewizho99, Maathavan, _jensen, 
rosalieper, Neuronton, Scott_WUaS, Jonas, Xmlizer, jkroll, Wikidata-bugs, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-15 Thread gerritbot 
gerritbot added a comment.


  Change 770978 had a related patch set uploaded (by DCausse; author: DCausse):
  
  [operations/puppet@production] [wdqs] add jvmquake options to wdqs1010 for 
testing
  
  https://gerrit.wikimedia.org/r/770978

TASK DETAIL
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Cc: bking, Aklapper, dcausse, Astuthiodit_1, karapayneWMDE, Invadibot, 
MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-14 Thread bking 
bking added a comment.


  Manually installed on wdqs1010

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MPhamWMF, maantietaja, CBogen, Akuckartz, Nandana, Namenlos314, Lahi, Gq86, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-08 Thread Stashbot 
Stashbot added a comment.


  Mentioned in SAL (#wikimedia-operations) [2022-03-08T16:53:57Z]  
bking@deneb manually installed tox for T293862 
 . moritzm will add puppet patch for 
this

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Cc: Aklapper, dcausse, karapayneWMDE, Invadibot, MPhamWMF, maantietaja, CBogen, 
Akuckartz, Nandana, Namenlos314, Lahi, Gq86, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-08 Thread Stashbot 
Stashbot added a comment.


  Mentioned in SAL (#wikimedia-operations) [2022-03-08T16:02:10Z]  
bking@deneb manually installed openjdk-11-jdk for T293862 
 . moritzm will add puppet patch for 
this

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Cc: Aklapper, dcausse, karapayneWMDE, Invadibot, MPhamWMF, maantietaja, CBogen, 
Akuckartz, Nandana, Namenlos314, Lahi, Gq86, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-03-07 Thread dcausse 
dcausse added a comment.


  Pushed 
https://gitlab.wikimedia.org/repos/search-platform/jvmquake/-/merge_requests/1 
(up for review) to have a debian package that we could install on production 
machines.

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Akuckartz, Nandana, Namenlos314, Lahi, Gq86, Lucas_Werkmeister_WMDE, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, 
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-02-09 Thread dcausse 
dcausse claimed this task.
dcausse moved this task from Ready for Development to In Progress on the 
Discovery-Search (Current work) board.

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  https://phabricator.wikimedia.org/T293862

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  https://phabricator.wikimedia.org/project/board/1227/

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To: dcausse
Cc: Aklapper, dcausse, Invadibot, MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2022-02-04 Thread EBernhardson 
EBernhardson updated the task description.

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  https://phabricator.wikimedia.org/T293862

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To: EBernhardson
Cc: Aklapper, dcausse, Invadibot, MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2021-10-25 Thread TJones 
TJones removed the point value for this task.

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  https://phabricator.wikimedia.org/T293862

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To: TJones
Cc: Aklapper, dcausse, Invadibot, MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2021-10-25 Thread TJones 
TJones set the point value for this task to "5".

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  https://phabricator.wikimedia.org/T293862

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To: TJones
Cc: Aklapper, dcausse, Invadibot, MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2021-10-25 Thread Gehel 
Gehel updated the task description.
Gehel removed the point value for this task.

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: Gehel
Cc: Aklapper, dcausse, Invadibot, MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2021-10-25 Thread MPhamWMF 
MPhamWMF set the point value for this task to "5".

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To: MPhamWMF
Cc: Aklapper, dcausse, Invadibot, MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2021-10-25 Thread Gehel 
Gehel updated the task description.

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: Gehel
Cc: Aklapper, dcausse, Invadibot, MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2021-10-25 Thread MPhamWMF 
MPhamWMF moved this task from All WDQS-related tasks to Current work on the 
Wikidata-Query-Service board.
MPhamWMF added a project: Discovery-Search (Current work).

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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

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To: MPhamWMF
Cc: Aklapper, dcausse, Invadibot, MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2021-10-20 Thread Maintenance_bot 
Maintenance_bot added a project: Wikidata.

TASK DETAIL
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To: Maintenance_bot
Cc: Aklapper, dcausse, Invadibot, MPhamWMF, maantietaja, CBogen, 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] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2021-10-20 Thread dcausse 
dcausse updated the task description.

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse
Cc: Aklapper, dcausse, MPhamWMF, CBogen, Namenlos314, Gq86, 
Lucas_Werkmeister_WMDE, EBjune, merbst, Jonas, Xmlizer, jkroll, Wikidata-bugs, 
Jdouglas, aude, Tobias1984, Manybubbles
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[Wikidata-bugs] [Maniphest] T293862: Investigate using jvmquake to limit the time a JVM is unusable due to GC overhead

2021-10-20 Thread dcausse 
dcausse created this task.
dcausse added a project: Wikidata-Query-Service.
Restricted Application added a subscriber: Aklapper.

TASK DESCRIPTION
  As as a maintainer of a service running on top of the JVM I want the JVM to 
rapidly quit if it enters a gc death spiral so that the service increase its 
availability.
  
  The default heuristics used by the JVM to kill itself 
(`-XX:+ExitOnOutOfMemoryError`) are too conservative to make them useful for 
real production use cases.
  jvmquake  seems to circumvant 
these problems by allowing more flexible heuristics to detect when the JVM will 
be stuck in a death spiral.
  
  This approach might be useful for several services:
  
  - blazegraph sometimes stuck in a death spiral certainly triggered by a bad 
query
  - cloudelastic sometimes misbehaving because of the GC
  
  AC:
  
  - Blazegraph rapidly restarts before entering a GC death spiral

TASK DETAIL
  https://phabricator.wikimedia.org/T293862

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To: dcausse
Cc: Aklapper, dcausse, MPhamWMF, CBogen, Namenlos314, Gq86, 
Lucas_Werkmeister_WMDE, EBjune, merbst, Jonas, Xmlizer, jkroll, Wikidata-bugs, 
Jdouglas, aude, Tobias1984, Manybubbles
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