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Re: Distributed build computers disappearing
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Re: Distributed build computers disappearing


  • Subject: Re: Distributed build computers disappearing
  • From: Michael Hecht <email@hidden>
  • Date: Thu, 1 Dec 2005 11:55:35 -0500


On Sep 20, 2005, at 3:37 PM, David Dolinar wrote:

Have any of you had problems with computers which are part of your build farm disappearing from the available list?  It happens very frequently at my workplace and the only way to get the computers to show up again it to toggle the "Share my computer for building" checkbox off & on.  This is very frustrating (headless computers, interrupting other users, etc).

Anyone else experience this?  Is there a known work around?  Any ideas on what could be causing this problem?  Any help would be appreciated.

With Xcode 2.2 this appears slightly different. I can see all the computers in the build farm, but half of them are listed in red as "Unavailable" or "Incompatible". (They are all running the same OS and Xcode version.)

The console shows this:

2005-12-01 10:42:01.958 Xcode[381] Warning: timed out fetching distributed build system info for host: chen.local.
2005-12-01 10:46:14.081 Xcode[381] Unexpected error fetching distcc info from "drake.local.": Operation now in progress
2005-12-01 10:46:14.372 Xcode[381] Unexpected error fetching distcc info from "jain.local.": Connection reset by peer
2005-12-01 10:46:15.529 Xcode[381] Unexpected error fetching distcc info from "ding.local.": Connection reset by peer
2005-12-01 10:46:15.531 Xcode[381] Unexpected error fetching distcc info from "lehman.local.": Connection reset by peer
2005-12-01 10:49:17.400 Xcode[381] Unexpected error fetching distcc info from "zangi.local.": Operation now in progress
2005-12-01 10:49:17.722 Xcode[381] Unexpected error fetching distcc info from "alford.local.": Operation now in progress
2005-12-01 10:49:18.440 Xcode[381] Unexpected error fetching distcc info from "di.local.": Connection reset by peer
2005-12-01 10:49:18.746 Xcode[381] Unexpected error fetching distcc info from "jones-b.local.": Connection reset by peer


The machines in question are certainly up and running. (They're set to never sleep, and I can ping and ARD to them.) Going to one of them I discover the following on their system.log:


Dec  1 11:21:31 jones-b distccd[638]: (dcc_make_tmpnam) ERROR: can't use TMPDIR "/tmp/distcc": Permission denied
Dec  1 11:21:31 jones-b distccd[638]: (dcc_remove_log_to_file) Warning: compile log not open?
Dec  1 11:21:32 jones-b distccd[679]: (dcc_make_tmpnam) ERROR: can't use TMPDIR "/tmp/distcc": Permission denied
Dec  1 11:21:32 jones-b distccd[679]: (dcc_remove_log_to_file) Warning: compile log not open?

Looking for /tmp/distcc showed that it doesn't exist. I did the following:


mkdir /tmp/distcc

chmod a+w /tmp/distcc


Suddenly, the remote machine became available!


So the question now is: why does that directory get deleted and why doesn't it get recreated automatically?


--Michael


-- 

Michael P. Hecht -- email@hidden

JMP, a Business Unit of SAS Institute -- http://www.jmp.com/



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