Couchbase PHP client library

incorrect timeout exceptions during required-durability function tests

Details

  • Type: Bug Bug
  • Status: Resolved Resolved
  • Priority: Blocker Blocker
  • Resolution: Fixed
  • Affects Version/s: 1.1.0
  • Fix Version/s: 1.1.0
  • Component/s: None
  • Security Level: Public
  • Labels:
    None
  • Environment:
    Mac OS 10.8
    2.0 build 1971
    1.1.0-dp4-76-g2f51ee9

Description

When running the tests with the build mentioned above, I relatively regularly receive timeouts during the sync tests. Given that the host is localhost and there is no active workload (and it's on ssd), these seem to indicate a problem with the implementation of the required-durability functions.
  1. File
    packetdump-PCBC-159_second-time.pcapng
    05/Dec/12 12:44 AM
    3.54 MB
    Matt Ingenthron
  2. File
    packetdump-PCBC-159.pcapng
    05/Dec/12 12:34 AM
    5.17 MB
    Matt Ingenthron
  3. Text File
    php_test_results_20121205_0327.txt
    05/Dec/12 12:20 AM
    60 kB
    Matt Ingenthron
  4. Text File
    php_test_results_20121205_0339.txt
    05/Dec/12 12:20 AM
    36 kB
    Matt Ingenthron
  5. Text File
    php_test_results_20121205_0623.txt
    05/Dec/12 12:34 AM
    36 kB
    Matt Ingenthron
  6. Text File
    php_test_results_20121205_0637.txt
    05/Dec/12 12:44 AM
    36 kB
    Matt Ingenthron

Activity

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Matt Ingenthron added a comment -
logs showing the timeout exceptions. these don't have much data, but maybe there's something interesting?
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Matt Ingenthron added a comment - logs showing the timeout exceptions. these don't have much data, but maybe there's something interesting?
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Mark Nunberg added a comment - - edited
I've seen this issue as well (but initially thought I was just having a slow cluster). I'm willing to bet the issue is in the timeout loop itself rather than in libcouchbase or in somewhere 'deeper', as the other Observe tests pass.

Additionally, they seem to take very long to complete (patch below does not).

What's odd is that I've run this through valgrind and it didn't show any particular errors, and the errors are not always reproducible.

fwiw, this seems to pass the tests

http://paste.scsys.co.uk/216801
Show
Mark Nunberg added a comment - - edited I've seen this issue as well (but initially thought I was just having a slow cluster). I'm willing to bet the issue is in the timeout loop itself rather than in libcouchbase or in somewhere 'deeper', as the other Observe tests pass. Additionally, they seem to take very long to complete (patch below does not). What's odd is that I've run this through valgrind and it didn't show any particular errors, and the errors are not always reproducible. fwiw, this seems to pass the tests http://paste.scsys.co.uk/216801
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Matt Ingenthron added a comment -
Attached a packet capture showing the same issues. I'm going to reconfigure the server and see if they go away, because I clearly see the polling, but I've not looked to see what's happening with the poll.
Show
Matt Ingenthron added a comment - Attached a packet capture showing the same issues. I'm going to reconfigure the server and see if they go away, because I clearly see the polling, but I've not looked to see what's happening with the poll.
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Matt Ingenthron added a comment -
Have a different failure under the remove scenario here. This isn't a timeout.

see:
packetdump-PCBC-159_second-time.pcapng
php_test_results_20121205_0637.txt
Show
Matt Ingenthron added a comment - Have a different failure under the remove scenario here. This isn't a timeout. see: packetdump- PCBC-159 _second-time.pcapng php_test_results_20121205_0637.txt
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Trond Norbye added a comment -
http://review.couchbase.org/#/c/23103/1
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Trond Norbye added a comment - http://review.couchbase.org/#/c/23103/1

People

  • Assignee:
    Trond Norbye
    Reporter:
    Matt Ingenthron
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Dates

  • Created:
    Updated:
    Resolved: