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Subject: Re: [MTT users] mtt fails, error: identical key already exists
From: Muhammad Wahaj Sethi (sethi_at_[hidden])
Date: 2014-01-03 11:15:30


Thanks for the quick reply.

Right now I am making use of option no 1.

As per my understanding, mtt runs tests only if new versions/updates are available. Info about last run is stored in the scratch dir.

By removing/changing workspace dir this info will be lost. And next mtt execution may submit old results again.

----- Original Message -----
From: "Ralph Castain" <rhc_at_[hidden]>
To: "MTT Users" <mtt-users_at_[hidden]>
Sent: Friday, January 3, 2014 4:11:18 PM
Subject: Re: [MTT users] mtt fails, error: identical key already exists

You have two options:

1. After each mtt execution, run a "cleanup" script that simply does "rm -rf <mtt-scratch-location>"

2. give the mtt scratch location a different name for each execution. However, be careful as you will fill your disk this way - so perhaps run a cleanup script every N times that whacks the oldest location

Ralph

On Jan 3, 2014, at 4:42 AM, Muhammad Wahaj Sethi <sethi_at_[hidden]> wrote:

> Hello!
> I am running mtt daily using a cron job. After every successful execution, next mtt execution fails with the following error message.
>
> *** ERROR: An identical key already exists in memory when MTT tried to read the file /lustre/ws1/ws/hpcmtt-mtt-0/mtt-scratch/sources/mpi_sources-ompi-nightly-trunk.1.9a1r30043.dump (key=1.9a1r30042). This should not happen. It likely indicates that multiple MTT clients are incorrectly operating in the same scratch tree. at /zhome/academic/HLRS/hlrs/hpcmtt/mtt-trunk/lib/MTT/Messages.pm line 131.
>
> I have checked mtt successful run log file and was not able to notice something unusual.
>
> Kindly, let me know if addition info is required.
>
> Any help will be greatly appreciated.
>
> regards,
> Wahaj
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> mtt-users mailing list
> mtt-users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users

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