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Multiple persistent child-process-related test failures on Windows when running as a Service #19

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@rvagg

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@rvagg

This sucks because I want to run the Jenkins client as a service but when I do I get 4 persistent failures:

=== release test-child-process-double-pipe ===
Path: simple/test-child-process-double-pipe
grep stdin write 18
echo exit
grep stdin write 7
Command: c:\workspace\iojs+v0.12+multi\nodes\node-forward-rackspace-iad-win2012r2-msvs2013\Release\node.exe c:\workspace\iojs+v0.12+multi\nodes\node-forward-rackspace-iad-win2012r2-msvs2013\test\simple\test-child-process-double-pipe.js
--- TIMEOUT ---
=== release test-child-process-exit-code ===
Path: simple/test-child-process-exit-code
Command: c:\workspace\iojs+v0.12+multi\nodes\node-forward-rackspace-iad-win2012r2-msvs2013\Release\node.exe c:\workspace\iojs+v0.12+multi\nodes\node-forward-rackspace-iad-win2012r2-msvs2013\test\simple\test-child-process-exit-code.js
--- TIMEOUT ---
=== release test-child-process-spawnsync ===
Path: simple/test-child-process-spawnsync
sleep started
sleep exited [ 50, 509779200 ]
assert.js:100
  throw new assert.AssertionError({
        ^
AssertionError: sleep should not take longer or less than 1 second
    at Object.<anonymous> (c:\workspace\iojs+v0.12+multi\nodes\node-forward-rackspace-iad-win2012r2-msvs2013\test\simple\test-child-process-spawnsync.js:44:8)
    at Module._compile (module.js:462:26)
    at Object.Module._extensions..js (module.js:480:10)
    at Module.load (module.js:357:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:503:10)
    at startup (node.js:135:16)
    at node.js:866:3
Command: c:\workspace\iojs+v0.12+multi\nodes\node-forward-rackspace-iad-win2012r2-msvs2013\Release\node.exe c:\workspace\iojs+v0.12+multi\nodes\node-forward-rackspace-iad-win2012r2-msvs2013\test\simple\test-child-process-spawnsync.js
=== release test-child-process-spawnsync-input ===
Path: simple/test-child-process-spawnsync-input
Command: c:\workspace\iojs+v0.12+multi\nodes\node-forward-rackspace-iad-win2012r2-msvs2013\Release\node.exe c:\workspace\iojs+v0.12+multi\nodes\node-forward-rackspace-iad-win2012r2-msvs2013\test\simple\test-child-process-spawnsync-input.js
--- TIMEOUT ---

Compare Jenkins running as a service to running manually from cmd.

I'm using nssm with fairly standard options, running Jenkins from a 1-line .bat file and redirecting stdout and stderr to files.

Anybody have any clues about this? The only service-related problems I'm aware of are obvious ones like permissions problems. The test-child-process-spawnsync failure is particularly interesting. The sleep 1 appears to be taking 50 seconds (look at builds 47 and 48 and you'll see the same number!)--what's the significance of 50 seconds? A longer-than-expected execution might explain all of these errors but it's still not acceptable since running Node from a service on Windows is fairly common for production deployments.

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