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Re: [HTCondor-users] move spool and log folders on highspeednetwork drive



yes there is full access to the network location by condor and the submitting machines (read and write) . The condor service stops and I cannot get it restarted as soon as I change the locations of the spool and log folders to the network location inside the config file. Through cmd condor does not respond to pretty much any commands giving me a "Can't connect to local master" error

A.

-----Original Message----- From: Andrey Kuznetsov
Sent: Thursday, March 28, 2013 6:59 PM
To: HTCondor-Users Mail List
Subject: Re: [HTCondor-users] move spool and log folders on highspeednetwork drive

Does condor have permission to write to location?
Is location accessible by that machine?

You said that if you change log and swap location, condor starts up,
then it must be an access/write issue over the network.

On Thu, Mar 28, 2013 at 11:55 AM, Antonis Sergis
<sergis_antonis@xxxxxxxxxxx> wrote:
Hello Andrew,

no I am using separate pools with separate network storage locations for
each log and spool

Antonis

-----Original Message----- From: Andrey Kuznetsov
Sent: Thursday, March 28, 2013 6:29 PM

To: HTCondor-Users Mail List
Subject: Re: [HTCondor-users] move spool and log folders on high
speednetwork drive

Are you trying to set 2 pool machines to use the same log file?
How do you think 2 machines are supposed to place a lock on the same file?

Though, I don't know how multipool setup works.

On Thu, Mar 28, 2013 at 10:11 AM, Antonis Sergis
<sergis_antonis@xxxxxxxxxxx> wrote:

hello. I am writing to get some more ideas regarding a problem which is
becoming rather hard to tackle. I have my machine as a condor submitter
and
unfortunately we realised that the local disk transfer speeds for the log
and spool files is too slow and limits our maximum job number. Replacing
the
disk with an ssd will bring another problem close which is processor
speed.
I have hence decided to alter the config file to be able to make the
submitting machine exchanging data over our super fast connection and
network storage. I had a go trying out different things for the last days.
I
got it to momentarily work and the number of jobs I could carry out
simultaneously went up to 1200 from 300 which was the earlier limit
however
then the processor maxed out and cut off taking up more jobs. We are
planning to split the administration job to other PCs to get the
processing
speed required and the max amount of jobs running. I have tried adding the
network location folders for the spool and log pathnames in the
configuration file:

######################################################################
##  Daemon-wide settings:
######################################################################

##  Pathnames
LOG        = \\PATHNAME\log
SPOOL        = \\PATHNAME\spool
EXECUTE        = $(LOCAL_DIR)/execute
BIN        = $(RELEASE_DIR)/bin
LIB        = $(RELEASE_DIR)/lib
INCLUDE        = $(RELEASE_DIR)/include
SBIN        = $(BIN)
LIBEXEC        = $(BIN)

However this does not work and the condor service is cut off and I cannot
restart it or enquire about it unless I change the config file back to the
initial one (i.e. local log and spool folders). I am running condor on a
windows 7 machine. Replacing the memory with an SSD is not an option as
the
job sizes are quite large and there are no funds to do that on a large
scale
while the network storage can provide the speed we are after. Any ideas?

Cheers

Antonis

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--
Andrey Kuznetsov <akuznet1@xxxxxxxx>
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--
Andrey Kuznetsov <akuznet1@xxxxxxxx>
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