Blank screen #13

carlalexander · 2015-07-28T12:17:37Z

There's a few situations that seem to cause blank pages from WordPress. It doesn't seem like the request wasn't received. Instead, it seems like there's no HTML sent. Or maybe it's a redirect response that doesn't make it to the browser.

Investigate blank screen for:

Installing a new plugin from the admin
Importing XML
Core update

carlalexander · 2015-07-28T18:10:53Z

Created and destroyed a DO droplet a few times to try reproducing the issue. So far, I've seen it once. Couldn't see anything wrong from the nginx side. Forgot to turn on varnishlog.

shawnhooper · 2015-08-25T15:10:58Z

The only time I've seen this was with the simple-fields plugin. It was causing a white screen (and only on my production box, not staging) when it called it's internal clear_cache function. Wasn't a plugin conflict, it would do this even if it was the only plugin installed.

I opened a support ticket with the plugin's author to see if they would comment: https://wordpress.org/support/topic/clear_caches-causing-wsod?replies=1

tobeycodes · 2015-09-27T16:00:50Z

@carlalexander I get this with any plugin install. Happy to give you ssh access to do your thing and check the logs

carlalexander · 2015-09-27T21:57:55Z

If you're getting this every time, that'd be great. I'm a bit busy this week because I'm speaking at WordCamp Toronto next weekend. I'll reach out over Twitter to get the details.

Ichag · 2015-10-01T13:08:52Z

It seams that the install process of plugins is completed correctly, despite blank screen.

carlalexander · 2015-10-05T13:20:29Z

Yes, that's the issue I observed as well. My hunch is that it's a bug inside the Varnish configuration. Something gets cached and we get that back instead of the redirect. It's just hard to reproduce.

carlalexander · 2015-10-11T21:24:35Z

Ran into a similar issue today doing tests for #29.

Couldn't get the /wp-login screen to display with Varnish. Turning off the Varnish server and going to the direct PHP fallback worked. Since I could reproduce the issue consistently, I managed to get some log output. This is from a forced refresh of the page.

# varnishlog output

*   << Request  >> 32782
-   Begin          req 32781 rxreq
-   Timestamp      Start: 1444590881.251594 0.000000 0.000000
-   Timestamp      Req: 1444590881.251594 0.000000 0.000000
-   ReqStart       127.0.0.1 59608
-   ReqMethod      GET
-   ReqURL         /wp-login.php
-   ReqProtocol    HTTP/1.0
-   ReqHeader      X-Real-IP: 192.222.155.108
-   ReqHeader      X-Forwarded-For: 192.222.155.108
-   ReqHeader      X-Forwarded-Proto: https
-   ReqHeader      X-Forwarded-Port: 443
-   ReqHeader      Host: dev.carlalexander.ca
-   ReqHeader      Connection: close
-   ReqHeader      User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:28.0) Gecko/20100101 Firefox/28.0
-   ReqHeader      Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
-   ReqHeader      Accept-Language: en-US,en;q=0.5
-   ReqHeader      Accept-Encoding: gzip, deflate
-   ReqHeader      Cookie: wordpress_test_cookie=WP+Cookie+check
-   ReqHeader      Pragma: no-cache
-   ReqHeader      Cache-Control: no-cache
-   ReqUnset       X-Forwarded-For: 192.222.155.108
-   ReqHeader      X-Forwarded-For: 192.222.155.108, 127.0.0.1
-   VCL_call       RECV
-   ReqUnset       Host: dev.carlalexander.ca
-   ReqHeader      Host: dev.carlalexander.ca
-   ReqUnset       Cookie: wordpress_test_cookie=WP+Cookie+check
-   ReqHeader      Cookie: wordpress_test_cookie=WP+Cookie+check
-   ReqUnset       Cookie: wordpress_test_cookie=WP+Cookie+check
-   ReqHeader      Cookie: wordpress_test_cookie=WP+Cookie+check
-   ReqUnset       Cookie: wordpress_test_cookie=WP+Cookie+check
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   VCL_return     purge
-   ReqUnset       Accept-Encoding: gzip, deflate
-   ReqHeader      Accept-Encoding: gzip
-   VCL_call       HASH
-   VCL_return     lookup
-   VCL_call       PURGE
-   ReqHeader      X-Purge: Yes
-   VCL_return     restart
-   Timestamp      Restart: 1444590881.251716 0.000122 0.000122
-   Link           req 32783 restart
-   End

*   << BeReq    >> 32784
-   Begin          bereq 32783 pass
-   Timestamp      Start: 1444590881.251819 0.000000 0.000000
-   BereqMethod    GET
-   BereqURL       /wp-login.php
-   BereqProtocol  HTTP/1.0
-   BereqHeader    X-Real-IP: 192.222.155.108
-   BereqHeader    X-Forwarded-Proto: https
-   BereqHeader    X-Forwarded-Port: 443
-   BereqHeader    User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:28.0) Gecko/20100101 Firefox/28.0
-   BereqHeader    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
-   BereqHeader    Accept-Language: en-US,en;q=0.5
-   BereqHeader    Pragma: no-cache
-   BereqHeader    Cache-Control: no-cache
-   BereqHeader    X-Forwarded-For: 192.222.155.108, 127.0.0.1
-   BereqHeader    Accept-Encoding: gzip
-   BereqHeader    X-Purge: Yes
-   BereqHeader    Host: dev.carlalexander.ca
-   BereqHeader    X-Varnish: 32784
-   VCL_call       BACKEND_FETCH
-   VCL_return     fetch
-   BackendOpen    18 boot.webserver 127.0.0.1 8080 127.0.0.1 46738
-   Timestamp      Bereq: 1444590881.251972 0.000153 0.000153
-   Timestamp      Beresp: 1444590881.265187 0.013368 0.013215
-   BerespProtocol HTTP/1.1
-   BerespStatus   200
-   BerespReason   OK
-   BerespHeader   Server: nginx
-   BerespHeader   Date: Sun, 11 Oct 2015 19:14:41 GMT
-   BerespHeader   Content-Type: text/html; charset=UTF-8
-   BerespHeader   Connection: close
-   BerespHeader   X-Powered-By: HHVM/3.9.1
-   BerespHeader   Content-Encoding: gzip
-   BerespHeader   Set-Cookie: wordpress_test_cookie=WP+Cookie+check; path=/
-   BerespHeader   Expires: Wed, 11 Jan 1984 05:00:00 GMT
-   BerespHeader   Cache-Control: no-cache, must-revalidate, max-age=0
-   BerespHeader   Vary: Accept-Encoding
-   BerespHeader   Pragma: no-cache
-   BerespHeader   X-Frame-Options: SAMEORIGIN
-   BerespHeader   X-Clacks-Overhead: GNU Terry Pratchett
-   TTL            RFC 0 10 -1 1444590881 1444590881 1444590881 442645200 0
-   VCL_call       BACKEND_RESPONSE
-   TTL            VCL 120 10 0 1444590881
-   VCL_return     deliver
-   Storage        malloc Transient
-   ObjProtocol    HTTP/1.1
-   ObjStatus      200
-   ObjReason      OK
-   ObjHeader      Server: nginx
-   ObjHeader      Date: Sun, 11 Oct 2015 19:14:41 GMT
-   ObjHeader      Content-Type: text/html; charset=UTF-8
-   ObjHeader      X-Powered-By: HHVM/3.9.1
-   ObjHeader      Content-Encoding: gzip
-   ObjHeader      Set-Cookie: wordpress_test_cookie=WP+Cookie+check; path=/
-   ObjHeader      Expires: Wed, 11 Jan 1984 05:00:00 GMT
-   ObjHeader      Cache-Control: no-cache, must-revalidate, max-age=0
-   ObjHeader      Vary: Accept-Encoding
-   ObjHeader      Pragma: no-cache
-   ObjHeader      X-Frame-Options: SAMEORIGIN
-   ObjHeader      X-Clacks-Overhead: GNU Terry Pratchett
-   Fetch_Body     0 none -
-   BackendClose   18 boot.webserver
-   Timestamp      BerespBody: 1444590881.265266 0.013447 0.000080
-   Length         0
-   BereqAcct      480 0 480 442 0 442
-   End

*   << Request  >> 32783
-   Begin          req 32782 restart
-   Timestamp      Start: 1444590881.251716 0.000122 0.000000
-   ReqStart       127.0.0.1 59608
-   ReqMethod      GET
-   ReqURL         /wp-login.php
-   ReqProtocol    HTTP/1.0
-   ReqHeader      X-Real-IP: 192.222.155.108
-   ReqHeader      X-Forwarded-Proto: https
-   ReqHeader      X-Forwarded-Port: 443
-   ReqHeader      Connection: close
-   ReqHeader      User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:28.0) Gecko/20100101 Firefox/28.0
-   ReqHeader      Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
-   ReqHeader      Accept-Language: en-US,en;q=0.5
-   ReqHeader      Pragma: no-cache
-   ReqHeader      Cache-Control: no-cache
-   ReqHeader      X-Forwarded-For: 192.222.155.108, 127.0.0.1
-   ReqHeader      Host: dev.carlalexander.ca
-   ReqHeader      Accept-Encoding: gzip
-   ReqHeader      X-Purge: Yes
-   VCL_call       RECV
-   ReqUnset       Host: dev.carlalexander.ca
-   ReqHeader      Host: dev.carlalexander.ca
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   ReqHeader      Cookie:
-   ReqUnset       Cookie:
-   VCL_return     pass
-   VCL_call       HASH
-   VCL_return     lookup
-   VCL_call       PASS
-   VCL_return     fetch
-   Link           bereq 32784 pass
-   Timestamp      Fetch: 1444590881.265278 0.013684 0.013562
-   RespProtocol   HTTP/1.1
-   RespStatus     200
-   RespReason     OK
-   RespHeader     Server: nginx
-   RespHeader     Date: Sun, 11 Oct 2015 19:14:41 GMT
-   RespHeader     Content-Type: text/html; charset=UTF-8
-   RespHeader     X-Powered-By: HHVM/3.9.1
-   RespHeader     Content-Encoding: gzip
-   RespHeader     Set-Cookie: wordpress_test_cookie=WP+Cookie+check; path=/
-   RespHeader     Expires: Wed, 11 Jan 1984 05:00:00 GMT
-   RespHeader     Cache-Control: no-cache, must-revalidate, max-age=0
-   RespHeader     Vary: Accept-Encoding
-   RespHeader     Pragma: no-cache
-   RespHeader     X-Frame-Options: SAMEORIGIN
-   RespHeader     X-Clacks-Overhead: GNU Terry Pratchett
-   RespHeader     X-Varnish: 32783
-   RespHeader     Age: 0
-   RespHeader     Via: 1.1 varnish-v4
-   VCL_call       DELIVER
-   RespHeader     X-Cache: MISS
-   RespHeader     X-Cache-Hits: 0
-   RespUnset      X-Powered-By: HHVM/3.9.1
-   RespUnset      Server: nginx
-   RespUnset      X-Varnish: 32783
-   RespUnset      Via: 1.1 varnish-v4
-   RespUnset      X-Clacks-Overhead: GNU Terry Pratchett
-   VCL_return     deliver
-   Timestamp      Process: 1444590881.265309 0.013715 0.000031
-   RespHeader     Accept-Ranges: bytes
-   RespHeader     Content-Length: 0
-   Debug          "RES_MODE 2"
-   RespHeader     Connection: close
-   Timestamp      Resp: 1444590881.265333 0.013739 0.000024
-   ReqAcct        512 0 512 442 0 442
-   End

*   << Session  >> 32781
-   Begin          sess 0 HTTP/1
-   SessOpen       127.0.0.1 59608 *:6081 127.0.0.1 6081 1444590881.251538 15
-   Link           req 32782 rxreq
-   SessClose      RESP_CLOSE 0.014
-   End

# /var/log/nginx/varnish.dev.carlalexander.ca_access.log

192.168.155.108 - - [11/Oct/2015:19:14:41 +0000] "GET /wp-login.php HTTP/1.1" 200 0 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:28.0) Gecko/20100101 Firefox/28.0"

# /var/log/nginx/dev.carlalexander.ca_access.log

127.0.0.1 - - [11/Oct/2015:19:14:41 +0000] "GET /wp-login.php HTTP/1.0" 200 1144 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:28.0) Gecko/20100101 Firefox/28.0"

The big thing that stands out is the content length. Everything on the Varnish side says that it's 0. That said, the access log from PHP shows a content length of 1144. I haven't been able to find anything on that, but this seems quite bizarre.

The only thing that's weird with this is that I only reproduced this using the 4.1 version. Reverting back to 4.0 fixed the issue it seems. Anyways, this might give us a bit of an idea of what's going on.

carlalexander · 2015-11-21T22:39:00Z

I haven't had this issue happen in the past two month during testing other PRs. I'll reopen it if I see it again.

carlalexander · 2015-11-22T00:05:39Z

Was too hasty closing this one. Ran a battery of tests to be sure. I think I was able to see issue. There was a FetchError eof socket fail when I checked the varnishlog. I'm not sure what it means though since there's no other errors anywhere else. The nginx log is fine and returns a non-empty response.

127.0.0.1 - - [21/Nov/2015:23:47:22 +0000] "GET /wp-admin/network/update.php?action=install-plugin&plugin=varnish-http-purge&_wpnonce=d00b6687cd HTTP/1.0" 200 3631 "http://dev.carlalexander.ca/wp-admin/network/plugin-install.php?tab=search&s=varnish" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0"

*   << BeReq    >> 32819
-   Begin          bereq 32818 pass
-   Timestamp      Start: 1448149639.028154 0.000000 0.000000
-   BereqMethod    GET
-   BereqURL       /wp-admin/network/update.php?action=install-plugin&plugin=varnish-http-purge&_wpnonce=d00b6687cd
-   BereqProtocol  HTTP/1.0
-   BereqHeader    X-Real-IP: 192.222.155.108
-   BereqHeader    X-Forwarded-Proto: http
-   BereqHeader    X-Forwarded-Port: 80
-   BereqHeader    User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0
-   BereqHeader    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
-   BereqHeader    Accept-Language: en-US,en;q=0.5
-   BereqHeader    Accept-Encoding: gzip, deflate
-   BereqHeader    Referer: http://dev.carlalexander.ca/wp-admin/network/plugin-install.php?tab=search&s=varnish
-   BereqHeader    X-Forwarded-For: 192.222.155.108, 127.0.0.1
-   BereqHeader    Host: dev.carlalexander.ca
-   BereqHeader    Cookie: wp-settings-time-1=1448149623; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969; wordpress_logged_in_b558cb26904621fb11b
-   BereqHeader    X-Varnish: 32819
-   VCL_call       BACKEND_FETCH
-   VCL_return     fetch
-   BackendOpen    17 webserver(127.0.0.1,,8080) 127.0.0.1 40260
-   Backend        17 vdir webserver(127.0.0.1,,8080)
-   Timestamp      Bereq: 1448149639.028299 0.000144 0.000144
-   Timestamp      Beresp: 1448149640.184143 1.155989 1.155844
-   BerespProtocol HTTP/1.1
-   BerespStatus   200
-   BerespReason   OK
-   BerespHeader   Server: nginx
-   BerespHeader   Date: Sat, 21 Nov 2015 23:47:20 GMT
-   BerespHeader   Content-Type: text/html; charset=UTF-8
-   BerespHeader   Connection: close
-   BerespHeader   X-Powered-By: HHVM/3.10.1
-   BerespHeader   Content-Encoding: gzip
-   BerespHeader   Set-Cookie: wp-settings-1=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/
-   BerespHeader   Set-Cookie: wp-settings-time-1=1448149639; expires=Sun, 20-Nov-2016 23:47:19 GMT; Max-Age=31536000; path=/
-   BerespHeader   Expires: Wed, 11 Jan 1984 05:00:00 GMT
-   BerespHeader   Cache-Control: no-cache, must-revalidate, max-age=0
-   BerespHeader   Vary: Accept-Encoding
-   BerespHeader   Pragma: no-cache
-   BerespHeader   X-Frame-Options: SAMEORIGIN
-   BerespHeader   X-Clacks-Overhead: GNU Terry Pratchett
-   TTL            RFC 0 -1 -1 1448149640 1448149640 1448149640 442645200 0
-   VCL_call       BACKEND_RESPONSE
-   TTL            VCL 120 10 0 1448149640
-   VCL_return     deliver
-   Storage        malloc Transient
-   ObjProtocol    HTTP/1.1
-   ObjStatus      200
-   ObjReason      OK
-   ObjHeader      Server: nginx
-   ObjHeader      Date: Sat, 21 Nov 2015 23:47:20 GMT
-   ObjHeader      Content-Type: text/html; charset=UTF-8
-   ObjHeader      X-Powered-By: HHVM/3.10.1
-   ObjHeader      Content-Encoding: gzip
-   ObjHeader      Set-Cookie: wp-settings-1=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/
-   ObjHeader      Set-Cookie: wp-settings-time-1=1448149639; expires=Sun, 20-Nov-2016 23:47:19 GMT; Max-Age=31536000; path=/
-   ObjHeader      Expires: Wed, 11 Jan 1984 05:00:00 GMT
-   ObjHeader      Cache-Control: no-cache, must-revalidate, max-age=0
-   ObjHeader      Vary: Accept-Encoding
-   ObjHeader      Pragma: no-cache
-   ObjHeader      X-Frame-Options: SAMEORIGIN
-   ObjHeader      X-Clacks-Overhead: GNU Terry Pratchett
-   Fetch_Body     4 eof stream
-   FetchError     Resource temporarily unavailable
-   FetchError     eof socket fail
-   Gzip           u F - 0 0 0 0 0
-   BackendClose   17 webserver(127.0.0.1,,8080)
-   BereqAcct      1009 0 1009 585 0 585
-   End

*   << Request  >> 32818
-   Begin          req 32817 rxreq
-   Timestamp      Start: 1448149639.027924 0.000000 0.000000
-   Timestamp      Req: 1448149639.027924 0.000000 0.000000
-   ReqStart       127.0.0.1 47219
-   ReqMethod      GET
-   ReqURL         /wp-admin/network/update.php?action=install-plugin&plugin=varnish-http-purge&_wpnonce=d00b6687cd
-   ReqProtocol    HTTP/1.0
-   ReqHeader      Host: dev.carlalexander.ca
-   ReqHeader      X-Real-IP: 192.222.155.108
-   ReqHeader      X-Forwarded-For: 192.222.155.108
-   ReqHeader      X-Forwarded-Proto: http
-   ReqHeader      X-Forwarded-Port: 80
-   ReqHeader      Connection: close
-   ReqHeader      User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0
-   ReqHeader      Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
-   ReqHeader      Accept-Language: en-US,en;q=0.5
-   ReqHeader      Accept-Encoding: gzip, deflate
-   ReqHeader      Referer: http://dev.carlalexander.ca/wp-admin/network/plugin-install.php?tab=search&s=varnish
-   ReqHeader      Cookie: wp-settings-time-1=1448149623; wordpress_test_cookie=WP+Cookie+check; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969;
-   ReqUnset       X-Forwarded-For: 192.222.155.108
-   ReqHeader      X-Forwarded-For: 192.222.155.108, 127.0.0.1
-   VCL_call       RECV
-   ReqUnset       Host: dev.carlalexander.ca
-   ReqHeader      Host: dev.carlalexander.ca
-   ReqUnset       Cookie: wp-settings-time-1=1448149623; wordpress_test_cookie=WP+Cookie+check; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969;
-   ReqHeader      Cookie: wp-settings-time-1=1448149623; wordpress_test_cookie=WP+Cookie+check; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969;
-   ReqUnset       Cookie: wp-settings-time-1=1448149623; wordpress_test_cookie=WP+Cookie+check; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969;
-   ReqHeader      Cookie: wp-settings-time-1=1448149623; wordpress_test_cookie=WP+Cookie+check; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969;
-   ReqUnset       Cookie: wp-settings-time-1=1448149623; wordpress_test_cookie=WP+Cookie+check; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969;
-   ReqHeader      Cookie: wp-settings-time-1=1448149623; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969; wordpress_logged_in_b558cb26904621fb11b
-   ReqUnset       Cookie: wp-settings-time-1=1448149623; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969; wordpress_logged_in_b558cb26904621fb11b
-   ReqHeader      Cookie: wp-settings-time-1=1448149623; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969; wordpress_logged_in_b558cb26904621fb11b
-   ReqUnset       Cookie: wp-settings-time-1=1448149623; wordpress_b558cb26904621fb11ba8ee5c0adf458=admin%7C1448322245%7CNeAqmQQs3jj9dSBzFrG6GHoSl4MjrYVr17VJL3ej6NF%7C8731272c9d64e1faed5f9eaef69aa873fa57124b21d1430942ecb182432cc969; wordpress_logged_in_b558cb26904621fb11b
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-   VCL_return     pass
-   VCL_call       HASH
-   VCL_return     lookup
-   VCL_call       PASS
-   VCL_return     fetch
-   Link           bereq 32819 pass
-   Timestamp      Fetch: 1448149640.184318 1.156394 1.156394
-   RespProtocol   HTTP/1.1
-   RespStatus     200
-   RespReason     OK
-   RespHeader     Server: nginx
-   RespHeader     Date: Sat, 21 Nov 2015 23:47:20 GMT
-   RespHeader     Content-Type: text/html; charset=UTF-8
-   RespHeader     X-Powered-By: HHVM/3.10.1
-   RespHeader     Content-Encoding: gzip
-   RespHeader     Set-Cookie: wp-settings-1=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/
-   RespHeader     Set-Cookie: wp-settings-time-1=1448149639; expires=Sun, 20-Nov-2016 23:47:19 GMT; Max-Age=31536000; path=/
-   RespHeader     Expires: Wed, 11 Jan 1984 05:00:00 GMT
-   RespHeader     Cache-Control: no-cache, must-revalidate, max-age=0
-   RespHeader     Vary: Accept-Encoding
-   RespHeader     Pragma: no-cache
-   RespHeader     X-Frame-Options: SAMEORIGIN
-   RespHeader     X-Clacks-Overhead: GNU Terry Pratchett
-   RespHeader     X-Varnish: 32818
-   RespHeader     Age: 0
-   RespHeader     Via: 1.1 varnish-v4
-   VCL_call       DELIVER
-   RespHeader     X-Cache: MISS
-   RespHeader     X-Cache-Hits: 0
-   RespUnset      X-Powered-By: HHVM/3.10.1
-   RespUnset      Server: nginx
-   RespUnset      X-Varnish: 32818
-   RespUnset      Via: 1.1 varnish-v4
-   RespUnset      X-Clacks-Overhead: GNU Terry Pratchett
-   VCL_return     deliver
-   Timestamp      Process: 1448149640.184345 1.156420 0.000027
-   Debug          "RES_MODE 4"
-   RespHeader     Connection: close
-   RespHeader     Accept-Ranges: bytes
-   Timestamp      Resp: 1448149642.181973 3.154049 1.997629
-   Debug          "XXX REF 1"
-   ReqAcct        1038 0 1038 565 0 565
-   End

carlalexander · 2016-01-29T03:36:52Z

Now that I have working Docker container. I'm seeing this issue a lot more. It'll be easier to look for a fix.

carlalexander · 2016-09-16T17:56:10Z

I've now spent a ton of hours debugging this issue. The only workaround that works is to use return(pipe) instead of return(pass) in the varnish configuration. I've posted about this on the Varnish mailing list. Next step is to create a ticket in the Varnish project itself.

zedrickvillas · 2016-12-04T14:56:28Z

HI i've encountered this also with one of my site.
Is the fix available?

carlalexander · 2016-12-08T22:49:44Z

This issue is still there. I still haven't written the detailed ticket to the varnish team. Are you getting it constantly?

tobeycodes · 2016-12-08T23:02:38Z

I actually get it a ton now. The jetpack and redis plugin although function correctly none of the settings pages load for me

carlalexander · 2016-12-08T23:39:32Z

Alright, I'll look into writing that ticket for the varnish team.

cyrrill · 2017-04-14T11:08:08Z

HI @carlalexander , I'm getting this issue, and using pipe rather than pass fixes it for me. Did the ticket manage to get posted? Thanks

carlalexander · 2017-04-14T11:30:37Z

No, I've been too busy to start the process sorry 😞

carlalexander added the needs investigation label Aug 25, 2015

carlalexander mentioned this issue Oct 1, 2015

connection to hhvm.sock failed #22

Closed

carlalexander closed this as completed Nov 21, 2015

carlalexander reopened this Nov 22, 2015

carlalexander mentioned this issue Sep 2, 2016

Issues with some pages with 4.1.1-1 on Xenial mattiasgeniar/varnish-4.0-configuration-templates#32

Closed

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