[Swift-user] Block task failed: Connection to worker lost

Thu Dec 4 13:33:24 CST 2014

We should (and will) add a getcwd( ) library function to eliminate this 
particular need for java( ), though.

- Mike

On 12/4/14 1:23 PM, Yadu Nand Babuji wrote:
> Hi Jonathan,
>
> I rebuilt the trunk package with Mihael's fixes, and you can get it from
> here :
> http://users.rcc.uchicago.edu/~yadunand/swift-trunk-latest.tar.gz
>
> -Yadu
>
> On 12/04/2014 01:01 PM, Mihael Hategan wrote:
>> Hi Jonathan,
>>
>> I fixed this in GIT. Yadu, can you compile the latest GIT please?
>>
>> Mihael
>>
>> On Thu, 2014-12-04 at 18:33 +0000, Ozik, Jonathan wrote:
>>> Hi Yadu,
>>>
>>> I’ve tried running with trunk and am getting a strange Java error this time:
>>> No method: getProperty in java.lang.System with parameter types[class java.lang.String]
>>> swiftscript:java @ repast, line: 267
>>>
>>> at org.griphyn.vdl.karajan.lib.swiftscript.Java.getMethod(Java.java:192)
>>> at org.griphyn.vdl.karajan.lib.swiftscript.Java.function(Java.java:162)
>>> at org.griphyn.vdl.karajan.lib.SwiftFunction.runBody(SwiftFunction.java:77)
>>> at org.globus.cog.karajan.compiled.nodes.InternalFunction.run(InternalFunction.java:175)
>>> at org.globus.cog.karajan.compiled.nodes.CompoundNode.runChild(CompoundNode.java:110)
>>> at org.globus.cog.karajan.compiled.nodes.InternalFunction.run(InternalFunction.java:165)
>>> at org.globus.cog.karajan.compiled.nodes.CompoundNode.runChild(CompoundNode.java:110)
>>> at org.globus.cog.karajan.compiled.nodes.InternalFunction.run(InternalFunction.java:165)
>>> at org.globus.cog.karajan.compiled.nodes.CompoundNode.runChild(CompoundNode.java:110)
>>> at org.globus.cog.karajan.compiled.nodes.Sequential.run(Sequential.java:41)
>>> at org.globus.cog.karajan.compiled.nodes.CompoundNode.runChild(CompoundNode.java:110)
>>> at org.globus.cog.karajan.compiled.nodes.UParallel$1.run(UParallel.java:91)
>>> at k.thr.LWThread.run(LWThread.java:247)
>>> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>> at java.lang.Thread.run(Thread.java:745)
>>>
>>> Execution failed:
>>> Error attempting to use: java.lang.System
>>> swiftscript:java @ repast, line: 267
>>>
>>> I think this is being triggered by the call:
>>> string s = strcat(java("java.lang.System","getProperty","user.dir"),"/“);
>>>
>>> Which worked just fine with 0.95 RC5.
>>>
>>> Any thoughts?
>>>
>>> Jonathan
>>>
>>> On Dec 4, 2014, at 11:14 AM, Yadu Nand Babuji <yadunand at uchicago.edu<mailto:yadunand at uchicago.edu>> wrote:
>>>
>>> Hi Jonathan,
>>>
>>> If your config file is named swift.conf and is in the current directory, it will be automatically selected and you needn't specify
>>> the file on the commandline, otherwise specify the config file using the -config option:
>>> swift -config <path_to_config> <your_script.swift>
>>>
>>> To resume from the log, say the restart.log in your run001 folder specify the restart.log using the -resume option:
>>> swift -resume run001/restart.log  ...
>>> The restart log is from an 0.95 run, and I'm not quite sure if it will work correctly with trunk.
>>>
>>> There is no trunk module available on Midway, since we rebuild from source to keep up to date with changes in the codebase.
>>>
>>> Generally you can always get the latest trunk builds here, (atmost a week older than last commit):
>>> http://users.rcc.uchicago.edu/~yadunand/swift-trunk-latest.tar.gz
>>>
>>> Thanks,
>>> Yadu
>>>
>>> On 12/04/2014 10:48 AM, Jonathan Ozik wrote:
>>> Thanks Yadu,
>>>
>>> I have a few questions.
>>> - How do I invoke swift and pass it the new swift.conf?
>>> - What is the “restart” procedure?
>>> - Is there a module I can load to use the latest swift trunk?
>>>
>>> Jonathan
>>>
>>> On Dec 3, 2014, at 7:03 PM, Yadu Nand Babuji <yadunand at uchicago.edu<mailto:yadunand at uchicago.edu>> wrote:
>>>
>>> Hi Jonathan,
>>>
>>> I believe some of the issues related to timeouts seen in your logs are fixed/less likely in trunk
>>> and would recommend that you try a run with that. I've also converted your swift.properties to
>>> the new swift.conf format. You can get a tested .conf file along with a small test case from here:
>>>
>>> http://users.rcc.uchicago.edu/~yadunand/test_configs_package.tar.gz<http://users.rcc.uchicago.edu/%7Eyadunand/test_configs_package.tar.gz>
>>>
>>> Here are some changes I've made to the conf:
>>> lazyErrors: true and executionRetries: 0 so that long running jobs are not retried.
>>> staging set to direct, since you are running on the shared FS.
>>> added worker logging and an app definition for debug.
>>>
>>> You can get the latest trunk build from here : http://users.rcc.uchicago.edu/~yadunand/swift-trunk-latest.tar.gz<http://users.rcc.uchicago.edu/%7Eyadunand/swift-trunk-latest.tar.gz>
>>>
>>> Thanks,
>>> Yadu
>>>
>>> On 12/03/2014 01:16 PM, Jonathan Ozik wrote:
>>> Hi Yadu,
>>>
>>> The tar.gz archive is here: https://www.dropbox.com/s/tt3ewapzaf0ygac/run001.tar.gz?dl=0
>>> I’m also attaching the swift.properties file that I used below.
>>>
>>> Thank you,
>>>
>>> Jonathan
>>>
>>> On Dec 3, 2014, at 11:04 AM, Yadu Nand Babuji <yadunand at uchicago.edu<mailto:yadunand at uchicago.edu>> wrote:
>>>
>>> Hi Jonathan,
>>>
>>> The issue you are seeing sounds pretty close to what David reported a
>>> while back.
>>> Could you send us a tar ball of your run directory from a failed run ?
>>>
>>> Could you also check if you've set lowOverAllocation and
>>> highOverAllocation in your sites definition ?
>>>
>>> Thanks,
>>> Yadu
>>>
>>> On 12/03/2014 10:50 AM, Ozik, Jonathan wrote:
>>> Hi all,
>>>
>>> I’m trying to run a large set of simulations on Midway using Swift 0.95-RC5.
>>> 768 of the 2187 tasks completed successfully and then I got the exception:
>>>
>>> exception @ swift-int.k, line: 530
>>> Caused by: Block task failed: Connection to worker lost
>>> org.globus.cog.coaster.TimeoutException: Channel timed out. lastTime=141203-145449.325, now=141203-145649.844, channel=TCPChannel [type: server, contact: 1202-5410010-000072-000000]
>>> at org.globus.cog.coaster.channels.AbstractCoasterChannel.checkTimeouts(AbstractCoasterChannel.java:133)
>>> at org.globus.cog.coaster.channels.AbstractCoasterChannel$1.run(AbstractCoasterChannel.java:124)
>>> at java.util.TimerThread.mainLoop(Timer.java:555)
>>> at java.util.TimerThread.run(Timer.java:505)
>>>
>>> Progress: Wed, 03 Dec 2014 14:59:51+0000  Submitted:651  Failed:6  Finished successfully:768  Failed but can retry:762
>>> Progress: Wed, 03 Dec 2014 14:59:52+0000  Submitted:651  Failed:44  Finished successfully:768  Failed but can retry:724
>>>
>>> And the process seems to have stopped.
>>>
>>> What log file would be helpful for diagnosing this?
>>>
>>> Jonathan
>>>
>>>
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-- 
Michael Wilde
Mathematics and Computer Science          Computation Institute
Argonne National Laboratory               The University of Chicago