Varnish cache server errors?
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Nicole
Feb 27, 2014, 4:15:55 AM2/27/14
to etsy-...@googlegroups.com
Is anyone else getting "Varnish cache server" errors occasionally coming through (we are getting one or two a week)? These seem to be coming through as 200 codes as far as I can tell, even though the title says its a 503...
Sample of response:
RuntimeError: <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <title>503 Connection timed out</title> </head> <body> <h1>Error 503 Connection timed out</h1> <p>Connection timed out</p> <h3>Guru Meditation:</h3> <p>XID: 2080727934</p> <hr> <p>Varnish cache server</p> </body> </html>
Graeme Grant
Feb 27, 2014, 5:57:18 AM2/27/14
to EtsyAPI Forum, Nicole
Hi Nicole,
I have looked at our error log files and cannot see what you have explained - 503s returned as 200s.
However I have seen 265 errors across nine occasions were 503s responses out of hundreds of thousands of calls in the timeframe indicated. Of which, 4 are POSTs (http://openapi.etsy.com/v2/listings/[listing_id]/images on 2014-02-25) and the remaining 261 are PUTs (http://openapi.etsy.com/v2/listings/[listing_id] - dates below). Interestingly, only one set of responses returned a X-Etsy-Request-Uuid (2014-02-08)...
Here's a summary:
* 2014-02-26 02:47:06.923 (UTC) x 1 call with 503 response code
So there is a small problem for Etsy. I too would like to see 100% of calls returned however only a minute percentage of calls are doing this. We have factored into our code a retry mechanism to cover these occasions.
G.
Date: Thu, 27 Feb 2014 01:15:55 -0800
From: nicole...@gmail.com
To: etsy-...@googlegroups.com
Subject: Varnish cache server errors?
I have looked at our error log files and cannot see what you have explained - 503s returned as 200s.
However I have seen 265 errors across nine occasions were 503s responses out of hundreds of thousands of calls in the timeframe indicated. Of which, 4 are POSTs (http://openapi.etsy.com/v2/listings/[listing_id]/images on 2014-02-25) and the remaining 261 are PUTs (http://openapi.etsy.com/v2/listings/[listing_id] - dates below). Interestingly, only one set of responses returned a X-Etsy-Request-Uuid (2014-02-08)...
Here's a summary:
* 2014-02-26 02:47:06.923 (UTC) x 1 call with 503 response code
Server = Varnish* 2014-02-25 16:27:10.330 (UTC) x 1 call with 503 response code
Retry-After = 0
Content-Type = text/html; charset=utf-8
Content-Length = 422
Accept-Ranges = bytes
Date = Wed, 26 Feb 2014 02:47:04 GMT
Via = 1.1 varnish
Age = 1
Connection = close
X-Served-By = cache-ty68-TYO
X-Cache = MISS
X-Cache-Hits = 0
X-Timer = S1393382823.148182154,VS0,VE1000
Server = Varnish* 2014-02-25 08:11:11.003 (UTC) x 1 call with 503 response code
Retry-After = 0
Content-Type = text/html; charset=utf-8
Content-Length = 413
Accept-Ranges = bytes
Date = Tue, 25 Feb 2014 16:27:07 GMT
Via = 1.1 varnish
Age = 10
Connection = close
X-Served-By = cache-c31-CHI
X-Cache = MISS
X-Cache-Hits = 0
X-Timer = S1393345616.891581297,VS0,VE10397
Server = Varnish* 2014-02-25 07:42:25.173 (UTC) x 1 call with 503 response code
Retry-After = 0
Content-Type = text/html; charset=utf-8
Content-Length = 411
Accept-Ranges = bytes
Date = Tue, 25 Feb 2014 08:11:07 GMT
Via = 1.1 varnish
Age = 13
Connection = close
X-Served-By = cache-c101-CHI
X-Cache = MISS
X-Cache-Hits = 0
X-Timer = S1393315854.785613060,VS0,VE12753
Server = Varnish* 2014-02-20 15:26:57.870 (UTC) x 78 Calls with 503 response code
Retry-After = 0
Content-Type = text/html; charset=utf-8
Content-Length = 411
Accept-Ranges = bytes
Date = Tue, 25 Feb 2014 07:42:21 GMT
Via = 1.1 varnish
Age = 11
Connection = close
X-Served-By = cache-c101-CHI
X-Cache = MISS
X-Cache-Hits = 0
X-Timer = S1393314130.897892714,VS0,VE10865
Server = Varnish* 2014-02-20 14:47:31.463 (UTC) x 165 calls with 503 response code
Retry-After = 0
Content-Type = text/html; charset=utf-8
Content-Length = 422
Accept-Ranges = bytes
Date = Thu, 20 Feb 2014 15:26:57 GMT
Via = 1.1 varnish
Age = 1
Connection = close
X-Served-By = cache-d64-DAL
X-Cache = MISS
X-Cache-Hits = 0
X-Timer = S1392910016.001327276,VS0,VE1001
Server = Varnish* 2014-02-08 22:24:51.333 (UTC) x 1 call with 503 response code
Retry-After = 0
Content-Type = text/html; charset=utf-8
Content-Length = 422
Accept-Ranges = bytes
Date = Thu, 20 Feb 2014 14:47:30 GMT
Via = 1.1 varnish
Age = 1
Connection = close
X-Served-By = cache-d64-DAL
X-Cache = MISS
X-Cache-Hits = 0
X-Timer = S1392907649.547153473,VS0,VE1001
Server = Varnish* 2014-02-08 21:21:06.393 (UTC) x 11 calls with 503 response code
Retry-After = 0
Content-Type = text/html; charset=utf-8
Content-Length = 416
Accept-Ranges = bytes
Date = Sat, 08 Feb 2014 22:24:52 GMT
Via = 1.1 varnish
Age = 0
Connection = close
X-Served-By = cache-sv60-SJC3
X-Cache = MISS
X-Cache-Hits = 0
X-Timer = S1391898292.334352732,VS0,VE143
Server = Varnish* 2014-02-08 12:59:46.707 (UTC) x 6 calls with 503 response code
Retry-After = 0
Content-Type = text/html; charset=utf-8
Content-Length = 416
Accept-Ranges = bytes
Date = Sat, 08 Feb 2014 21:21:07 GMT
Via = 1.1 varnish
Age = 0
Connection = close
X-Served-By = cache-sv62-SJC3
X-Cache = MISS
X-Cache-Hits = 0
X-Timer = S1391894467.333223820,VS0,VE142
Server = Apache
X-Etsy-Request-Uuid = RhHKWz0Quw6Ny0NxWuAuviGpOniQ
X-Cnection = close
Content-Type = text/html; charset=UTF-8
Content-Length = 0
Accept-Ranges = bytes
Date = Sat, 08 Feb 2014 12:59:47 GMT
Via = 1.1 varnish
Connection = keep-alive
X-Served-By = cache-am69-AMS
X-Cache = MISS
X-Cache-Hits = 0
X-Timer = S1391864387.330043077,VS0,VE97
Vary = Accept-Encoding
So there is a small problem for Etsy. I too would like to see 100% of calls returned however only a minute percentage of calls are doing this. We have factored into our code a retry mechanism to cover these occasions.
G.
Date: Thu, 27 Feb 2014 01:15:55 -0800
From: nicole...@gmail.com
To: etsy-...@googlegroups.com
Subject: Varnish cache server errors?
Is anyone else getting "Varnish cache server" errors occasionally coming through (we are getting one or two a week)? These seem to be coming through as 200 codes as far as I can tell, even though the title says its a 503...
Sample of response:
RuntimeError: <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <title>503 Connection timed out</title> </head> <body> <h1>Error 503 Connection timed out</h1> <p>Connection timed out</p> <h3>Guru Meditation:</h3> <p>XID: 2080727934</p> <hr> <p>Varnish cache server</p> </body> </html>
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Tim Falzone
Feb 27, 2014, 10:31:13 AM2/27/14
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Hi Nicole,
Those errors are coming from the caching layer. We are looking into the cause of the errors and we'll fix the underlying issue. Thanks for helping us diagnose it!
Cheers,
Tim
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Tim Falzone
Engineering Manager - Core Platform
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