[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-07-27 Thread gerritbot
gerritbot added a comment.
Change 301374 merged by BBlack:
Revert "Revert "Revert "cache_misc: do not deliver expired cached objects"""

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-07-27 Thread gerritbot
gerritbot added a comment.
Change 301374 had a related patch set uploaded (by BBlack):
Revert "Revert "Revert "cache_misc: do not deliver expired cached objects"""

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-17 Thread ema
ema added a comment.


  I've upgraded cache_misc to Varnish 4 again. We're now running a patched 
version of Varnish (4.1.2-1wm5) including the following patches:
  
  - 0005-handle-eof-http1.1.patch 

  - 0006-IMS-duplicate-headers-proper-handling.patch 

  - 0007-revert-grace-hits-hit-for-pass-objs.patch 

  
  The first two have been introduced while debugging, and although they don't 
solve the bug they look legit and in general it feels like a good idea to keep 
them. The 3rd patch is the one that we think solves the empty response issue.
  
  Although we think the problem should now be fixed, I'd keep this bug open a 
little longer. Please keep on testing and report any issues you might find.

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-17 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-17T09:02:23Z]  upgrading esams cache_misc to 
varnish 4 (https://phabricator.wikimedia.org/T126206, 
https://phabricator.wikimedia.org/T134989)

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-17 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-17T08:31:56Z]  upgrading codfw cache_misc to 
varnish 4 (https://phabricator.wikimedia.org/T126206, 
https://phabricator.wikimedia.org/T134989)

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-17 Thread gerritbot
gerritbot added a comment.


  Change 289148 merged by Ema:
  Revert "cache_misc: downgrade almost all to varnish3"
  
  https://gerrit.wikimedia.org/r/289148

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-17 Thread gerritbot
gerritbot added a comment.


  Change 289148 had a related patch set uploaded (by Ema):
  Revert "cache_misc: downgrade almost all to varnish3"
  
  https://gerrit.wikimedia.org/r/289148

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-16 Thread BBlack
BBlack added a comment.


  cache_maps cluster switched to the new varnish package today

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-15 Thread gerritbot
gerritbot added a comment.


  Change 288817 merged by Ema:
  Revert 'Allow grace-hits on hit-for-pass objects'
  
  https://gerrit.wikimedia.org/r/288817

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-15 Thread gerritbot
gerritbot added a comment.


  Change 288817 had a related patch set uploaded (by Ema):
  Revert 'Allow grace-hits on hit-for-pass objects'
  
  https://gerrit.wikimedia.org/r/288817

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-15 Thread ema
ema added a comment.


  I haven't been able to reproduce the bug so far after reverting the commit 
mentioned above. cp1045 and cp3007 are both running fine with an updated 
version of varnish.
  
  Please use cp3007:80 if you want to play around, it will only hit itself and 
cp1045 to ensure we're testing Varnish 4 only.
  
curl -v -H 'X-Forwarded-Proto: https' -H 'Host: query.wikidata.org' 
http://cp3007.esams.wmnet/style.css?test=3
  
  Updated packages will follow soon.

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-15 Thread ema
ema added a comment.


  Update: setting default_grace to 0 makes the issue unreproducible.  4.1.0 is 
not affected, while 4.1.1 is, so I started looking for grace-related commits 
between the two versions.
  
  Looks like the bug was introduced by this one: 
https://github.com/varnishcache/varnish-cache/commit/8b7cb51b76ad616143040ee955f1f6d9306251b9
  
  Testing on cp1045.

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-14 Thread ema
ema added a comment.


  The issue can be reproduced running two varnishd on the same host, without 
any VCL. A web server listening on port 80 is also needed, serving any type of 
file. I've used a 612 bytes HTML page.
  
/usr/sbin/varnishd -a :3128 -b localhost:80   -p default_ttl=5 -p 
default_grace=10 -F
/usr/sbin/varnishd -a :81   -b localhost:3128 -p default_ttl=4 -p 
default_grace=9 -F
  
  https://phabricator.wikimedia.org/P3103 is an example of how to trigger it 
(roughly around iteration 61 on my tests). Varnish 4.1.2-2 from Debian Sid is 
also affected.

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-13 Thread BBlack
BBlack added a comment.


  Current State:
  
  - cp3007 and cp1045 are depooled from user traffic, icinga-downtimed for 
several days, and have puppet disabled.  Please do not re-enable puppet on 
these!  They also have confd shut down, and are running custom configs to 
continue debugging this issue under varnish4.
  - The rest of cache_misc is reverted to varnish3, which should temporarily 
resolve this issue for user traffic over the weekend and into next week while 
we continued isolated investigation using the two nodes above.
  - Please do **not** resolve this ticket - this is a bandaid, and we still 
have a lot of digging to do.
  - Please **do** report any similar user-facing failures from here forward, as 
there shouldn't be any while the cluster is reverted to varnish3.

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-13 Thread BBlack
BBlack added a comment.


  I forgot one of our temporary hacks in the list above in 
https://phabricator.wikimedia.org/T134989#2290254:
  
  4. https://gerrit.wikimedia.org/r/#/c/288656/ - we also enabled a critical 
small bit here in v4 vcl_hit.  I reverted this for now during the varnish3 
downgrade.  Need to remember that once we find the right bug and start cleaning 
everything up for upgrade again...

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-13 Thread gerritbot
gerritbot added a comment.


  Change 288655 had a related patch set uploaded (by BBlack):
  cache_misc: downgrade almost all to varnish3
  
  https://gerrit.wikimedia.org/r/288655

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2016-05-13 Thread gerritbot
gerritbot added a comment.


  Change 288655 merged by BBlack:
  cache_misc: downgrade almost all to varnish3
  
  https://gerrit.wikimedia.org/r/288655

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2016-05-13 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-13T13:13:56Z]  depooling cp3007 to try 
reproducing https://phabricator.wikimedia.org/T134989

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-13 Thread ema
ema added a comment.


  In https://phabricator.wikimedia.org/T134989#2292155, @Jonas wrote:
  
  > Issue appearing again
  
  
  [...]
  
  > < Age: 58
  >  < X-Cache: cp1045 hit+miss(0), cp3009 hit+miss(0), cp3007 frontend hit(4)
  
  On @Gehel's repro from this morning (https://phabricator.wikimedia.org/P3067) 
we had:
  
  > < Age: 87
  >  < X-Cache: cp1061 hit+miss(0), cp3010 hit(2), cp3009 frontend miss(0)
  
  Might be a coincidence, but hit+miss seemed to be involved in other repros as 
well:
  https://phabricator.wikimedia.org/P3055 
https://www.irccloud.com/pastebin/u0ti8RQe/

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-13 Thread Jonas
Jonas added a comment.


  Issue appearing again
  
curl -v 'https://query.wikidata.org/i18n/en.json'
* Hostname was NOT found in DNS cache
*   Trying 91.198.174.217...
* Connected to query.wikidata.org (91.198.174.217) port 443 (#0)
* successfully set certificate verify locations:
*   CAfile: none
  CApath: /etc/ssl/certs
* SSLv3, TLS handshake, Client hello (1):
* SSLv3, TLS handshake, Server hello (2):
* SSLv3, TLS handshake, CERT (11):
* SSLv3, TLS handshake, Server key exchange (12):
* SSLv3, TLS handshake, Server finished (14):
* SSLv3, TLS handshake, Client key exchange (16):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSL connection using ECDHE-ECDSA-AES128-GCM-SHA256
* Server certificate:
*subject: C=US; ST=California; L=San Francisco; O=Wikimedia Foundation, 
Inc.; CN=*.wikipedia.org
*start date: 2015-12-10 23:22:05 GMT
*expire date: 2016-12-10 22:46:04 GMT
*subjectAltName: query.wikidata.org matched
*issuer: C=BE; O=GlobalSign nv-sa; CN=GlobalSign Organization 
Validation CA - SHA256 - G2
*SSL certificate verify ok.
> GET /i18n/en.json HTTP/1.1
> User-Agent: curl/7.35.0
> Host: query.wikidata.org
> Accept: */*
> 
< HTTP/1.1 200 OK
< Date: Fri, 13 May 2016 10:53:06 GMT
< Content-Type: application/json
< Content-Length: 735
< Connection: keep-alive
* Server nginx/1.9.4 is not blacklisted
< Server: nginx/1.9.4
< Last-Modified: Wed, 27 Apr 2016 22:48:11 GMT
< X-Served-By: wdqs1002
< ETag: W/"572141ab-2df"
< Vary: Accept-Encoding
< X-Varnish: 9318317, 175488687, 162750753 170268466
< Via: 1.1 varnish-v4, 1.1 varnish-v4, 1.1 varnish-v4
< Age: 58
< X-Cache: cp1045 hit+miss(0), cp3009 hit+miss(0), cp3007 frontend hit(4)
< Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
< Set-Cookie: 
WMF-Last-Access=13-May-2016;Path=/;HttpOnly;secure;Expires=Tue, 14 Jun 2016 
00:00:00 GMT
< X-Analytics: https=1;nocookies=1
< X-Client-IP: 87.138.110.76
< Accept-Ranges: bytes
< 
* SSLv3, TLS alert, Client hello (1):
* transfer closed with 735 bytes remaining to read
* Closing connection 0
* SSLv3, TLS alert, Client hello (1):
curl: (18) transfer closed with 735 bytes remaining to read

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To: Jonas
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TerraCodes, Urbanecm, KDDLB, hashar, Jonas, gerritbot, BBlack, Aklapper, Zppix, 
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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-13 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-13T10:27:01Z]  depooling cp1061 trying to 
reproduce https://phabricator.wikimedia.org/T134989

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-13 Thread ema
ema added a comment.


  Issue reproduced: https://phabricator.wikimedia.org/P3067

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-13 Thread ema
ema added a comment.


  In https://phabricator.wikimedia.org/T134989#2290254, @BBlack wrote:
  
  > 1. We've got 2x upstream bugfixes applied to our varnishd on cache_misc: 
https://github.com/varnishcache/varnish-cache/commit/d828a042b3fc2c2b4f1fea83021f0d5508649e50
 + 
https://github.com/varnishcache/varnish-cache/commit/e142a199c53dd9331001cb29678602e726a35690
  > 2. We've removed all of our Content-Length sensitive VCL that was on 
cache_misc temporarily (basically https://gerrit.wikimedia.org/r/#/c/288231/ , 
which at one point we partially put back, but then removed again)
  > 3. We've switched from persistent to file storage on the misc backends, 
manually with puppet disabled.  Puppetization to make that semi-permanent if 
need be: https://gerrit.wikimedia.org/r/288440 (untested)
  >
  >   I don't think anyone has reproduced the problem since (3) went live 
everywhere.  So we're in a new state and needing proof that things are still 
messed up (or not!).
  
  
  I'll keep on trying to reproduce the issue today, and ask others to do the 
same, including @Gehel whose tests have been really helpful during the past 
days.  Will put back our Content-Length sensitive code (2) if nothing comes up.

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread Smalyshev
Smalyshev added a comment.


  I don't see any weirdness anymore on query.wikidata.org/ @Jonas ?

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread BBlack
BBlack added a comment.


  Has anyone been able to reproduce any of the problems in the tickets merged 
into here, since roughly the timestamp of the above message?

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread BBlack
BBlack added a comment.


  So we're currently have several experiments in play trying to figure this out:
  
  1. We've got 2x upstream bugfixes applied to our varnishd on cache_misc: 
https://github.com/varnishcache/varnish-cache/commit/d828a042b3fc2c2b4f1fea83021f0d5508649e50
 + 
https://github.com/varnishcache/varnish-cache/commit/e142a199c53dd9331001cb29678602e726a35690
  
  2. We've removed all of our Content-Length sensitive VCL that was on 
cache_misc temporarily (basically https://gerrit.wikimedia.org/r/#/c/288231/ , 
which at one point we partially put back, but then removed again)
  
  3. We've switched from persistent to file storage on the misc backends, 
manually with puppet disabled.  Puppetization to make that semi-permanent if 
need be: https://gerrit.wikimedia.org/r/288440 (untested)
  
  I don't think anyone has reproduced the problem since (3) went live 
everywhere.  So we're in a new state and needing proof that things are still 
messed up (or not!).

TASK DETAIL
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Urbanecm, KDDLB, hashar, Jonas, gerritbot, BBlack, Aklapper, Zppix, 
Lydia_Pintscher, Gehel, Avner, Lewizho99, Maathavan, debt, D3r1ck01, FloNight, 
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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-12T15:52:43Z]  testing file storage on misc 
eqiad+esams https://phabricator.wikimedia.org/T134989

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread Kghbln
Kghbln added a comment.


  In https://phabricator.wikimedia.org/T134989#2289372, @BBlack wrote:
  
  > due to missing character encoding supposedly, but it's entirely likely it's 
missing everything and that's just the first thing it notices.
  
  
  I believe that this observation is correct. Thumbs up for a fix!

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread BBlack
BBlack added a comment.


  In the merged ticket above, it's browser access to status.wm.o, and the 
browser's getting a 304 Not Modified and complaining about it (due to missing 
character encoding supposedly, but it's entirely likely it's missing everything 
and that's just the first thing it notices).

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-12T13:34:23Z]  upgrading misc to varnish 
4.1.2-1wm4 and wiping caches (https://phabricator.wikimedia.org/T134989)

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread gerritbot
gerritbot added a comment.


  Change 288387 merged by Ema:
  Add debian/patches/0006-IMS-duplicate-headers-proper-handling.patch
  
  https://gerrit.wikimedia.org/r/288387

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread gerritbot
gerritbot added a comment.


  Change 288387 had a related patch set uploaded (by Ema):
  Add debian/patches/0006-IMS-duplicate-headers-proper-handling.patch
  
  https://gerrit.wikimedia.org/r/288387

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread Jonas
Jonas added a comment.


  Now I get content-length 0 for query.wikidata.org
  
jonkr@C134:~$ curl -v 'https://query.wikidata.org/'
* Hostname was NOT found in DNS cache
*   Trying 91.198.174.217...
* Connected to query.wikidata.org (91.198.174.217) port 443 (#0)
* successfully set certificate verify locations:
*   CAfile: none
  CApath: /etc/ssl/certs
* SSLv3, TLS handshake, Client hello (1):
* SSLv3, TLS handshake, Server hello (2):
* SSLv3, TLS handshake, CERT (11):
* SSLv3, TLS handshake, Server key exchange (12):
* SSLv3, TLS handshake, Server finished (14):
* SSLv3, TLS handshake, Client key exchange (16):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSL connection using ECDHE-ECDSA-AES128-GCM-SHA256
* Server certificate:
*subject: C=US; ST=California; L=San Francisco; O=Wikimedia Foundation, 
Inc.; CN=*.wikipedia.org
*start date: 2015-12-10 23:22:05 GMT
*expire date: 2016-12-10 22:46:04 GMT
*subjectAltName: query.wikidata.org matched
*issuer: C=BE; O=GlobalSign nv-sa; CN=GlobalSign Organization 
Validation CA - SHA256 - G2
*SSL certificate verify ok.
> GET / HTTP/1.1
> User-Agent: curl/7.35.0
> Host: query.wikidata.org
> Accept: */*
> 
< HTTP/1.1 200 OK
< Date: Thu, 12 May 2016 11:52:00 GMT
< Content-Type: text/html
< Content-Length: 0
< Connection: keep-alive
* Server nginx/1.9.4 is not blacklisted
< Server: nginx/1.9.4
< Last-Modified: Sat, 07 May 2016 20:29:34 GMT
< ETag: "572e502e-3ac2"
< X-Served-By: wdqs1002
< Content-Encoding: gzip
< Vary: Accept-Encoding
< X-Varnish: 26641945, 25319777, 27963618 25227953
< Via: 1.1 varnish-v4, 1.1 varnish-v4, 1.1 varnish-v4
< Age: 57
< X-Cache: cp1061 hit+miss(0), cp3007 hit+miss(0), cp3007 frontend hit(5)
< Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
< Set-Cookie: 
WMF-Last-Access=12-May-2016;Path=/;HttpOnly;secure;Expires=Mon, 13 Jun 2016 
00:00:00 GMT
< X-Analytics: https=1;nocookies=1
< X-Client-IP: 87.138.110.76
< Accept-Ranges: bytes
< 
* Connection #0 to host query.wikidata.org left intact

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-12T08:33:24Z]  wiping misc caches once again 
(https://phabricator.wikimedia.org/T134989)

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-12T07:51:40Z]  upgrading misc ulsfo to varnish 
4.1.2-1wm3 and wiping caches (https://phabricator.wikimedia.org/T134989)

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-12T07:47:03Z]  upgrading misc codfw to 
4.1.2-1wm3 and wiping caches (https://phabricator.wikimedia.org/T134989)

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To: Stashbot
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gerritbot, BBlack, Aklapper, Zppix, Lydia_Pintscher, Gehel, Avner, Lewizho99, 
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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread Stashbot
Stashbot added a comment.


  Mentioned in SAL [2016-05-12T07:05:38Z]  running varnish 4.1.2-1wm3 in 
misc esams (https://phabricator.wikimedia.org/T134989)

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To: Gehel, Stashbot
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gerritbot, BBlack, Aklapper, Zppix, Lydia_Pintscher, Gehel, Avner, Lewizho99, 
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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread gerritbot
gerritbot added a comment.


  Change 288350 merged by Ema:
  Add debian/patches/0005-handle-eof-http1.1.patch
  
  https://gerrit.wikimedia.org/r/288350

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gerritbot, BBlack, Aklapper, Zppix, Lydia_Pintscher, Gehel, Avner, Lewizho99, 
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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-12 Thread gerritbot
gerritbot added a comment.


  Change 288350 had a related patch set uploaded (by Ema):
  Add debian/patches/0005-handle-eof-http1.1.patch
  
  https://gerrit.wikimedia.org/r/288350

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gerritbot, BBlack, Aklapper, Zppix, Lydia_Pintscher, Gehel, Avner, Lewizho99, 
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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-11 Thread BBlack
BBlack added a comment.


  Status update: we've been debugging this off and on all day.  It's some kind 
of bug fallout from cache_misc's upgrade to Varnish 4.  It's a very complicated 
bug, and we don't really understand it yet.  We've made some band-aid fixes to 
VCL for now which should keep the problem at bay while investigating further.

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gerritbot, BBlack, Aklapper, Zppix, Lydia_Pintscher, Gehel, Avner, Lewizho99, 
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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-11 Thread gerritbot
gerritbot added a comment.


  Change 288213 merged by BBlack:
  tlsproxy: use http/1.1 only in conjunction with varnish4
  
  https://gerrit.wikimedia.org/r/288213

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Lewizho99, Maathavan, debt, D3r1ck01, FloNight, Izno, jkroll, Smalyshev, 
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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-11 Thread gerritbot
gerritbot added a comment.


  Change 288213 had a related patch set uploaded (by BBlack):
  tlsproxy: use http/1.1 only in conjunction with varnish4
  
  https://gerrit.wikimedia.org/r/288213

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D3r1ck01, FloNight, Izno, jkroll, Smalyshev, Wikidata-bugs, Jdouglas, aude, 
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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-11 Thread Gehel
Gehel added a comment.


  Seems the issue (or a similar one is still happening), I'm trying to 
reproduce...

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-11 Thread Gehel
Gehel added a comment.


  I can't reproduce the issue. Since it was random, I might just be lucky. 
Closing this anyway for the moment, I'll reopen if I see the issue again.

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[Wikidata-bugs] [Maniphest] [Commented On] T134989: WDQS empty response - transfer clsoed with 15042 bytes remaining to read

2016-05-11 Thread BBlack
BBlack added a comment.


  Assuming there was no transient issue (which became cached) on the wdqs end 
of things, then this was likely a transient thing from nginx experiments or the 
cache_misc varnish4 upgrade.  I banned all wdqs objects from cache_misc and now 
your test URL works fine.  Can you confirm?

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