Re: [HTCondor-users] eval() not working?

[Brian Bockelman <bbockelm@xxxxxxxxxxx>]

Hi Evan,

Please allow me to be impertinent and not answer your question, but rather ask another question - 

Is there any reason why you can't use HTCondor's built-in cgroup support?  After a quick read-through, I don't see anything that you are reporting that's not in the built-in support.

Thanks,

Brian

On Aug 28, 2014, at 8:36 AM, Sarmiento, Evan <esarmien@xxxxxxxxxxxxx> wrote:

> Hi,
> 
> I'm running Condor 8.0.7--
> 
> I made a custom set of Machine ClassAds which display CGROUP
> parameters per slot, configuration below:
> 
> #
> # CGROUP Machine ClassAds
> #
> 
> STARTD_CRON_AUTOPUBLISH = If_Changed
> 
> STARTD_CRON_JOBLIST =
> 
> STARTD_CRON_JOBLIST = $(CRON_JOBLIST) cgroup
> 
> STARTD_CRON_cgroup_PREFIX =
> STARTD_CRON_cgroup_EXECUTABLE = /usr/local/HMDC/bin/condor_slot_cgroups
> STARTD_CRON_cgroup_PERIOD = 5s
> STARTD_CRON_cgroup_MODE = WaitForExit
> STARTD_CRON_cgroup_RECONFIG = true
> STARTD_CRON_cgroup_SLOTS =
> STARTD_CRON_cgroup_ARGS = $(BASE_CGROUP)
> 
> #
> # STARTD ATTRS
> #
> #
> 
> DYNAMIC_SLOT_ID = \
>  splitSlotName(Name)[0]
> 
> MEMORY_USAGE_IN_BYTES = \
> eval( strcat( toUpper(DYNAMIC_SLOT_ID), "_cgroup_memory_usage_in_bytes" ) )
> 
> 
> SLOTD_SLOT_ATTRS = $(STARTD_SLOT_ATTRS), MEMORY_USAGE_IN_BYTES,
> CGROUP_MEMORY_USAGE_IN_BYTES, DYNAMIC_SLOT_ID
> STARTD_ATTRS = $(STARTD_ATTRS), MEMORY_USAGE_IN_BYTES,
> CGROUP_MEMORY_USAGE_IN_BYTES, DYNAMIC_SLOT_ID
> 
> #
> # private IP
> #
> NETWORK_INTERFACE = <%= @hmdc_node_listen %>
> 
> #
> # We're a head node that also runs jobs
> #
> DAEMON_LIST = $(HMDC_COMPUTE_DAEMON_LIST)
> 
> However, when I login to my collector, eval() doesn't seem to work--
> check this out:
> 
> [root@dev-cod6-head tmp]# condor_status -autoformat Dynamic_Slot_Id
> 
> slot1
> 
> slot1
> 
> slot1_1
> 
> -- This works, my Dynamic_Slot_Id is available for each slot
> 
> This doesn't work:
> 
> [root@dev-cod6-head tmp]# condor_status -long|grep MEM
> 
> MEMORY_USAGE_IN_BYTES =
> eval(strcat(toUpper(DYNAMIC_SLOT_ID),"_cgroup_memory_usage_in_bytes"))
> 
> MEMORY_USAGE_IN_BYTES =
> eval(strcat(toUpper(DYNAMIC_SLOT_ID),"_cgroup_memory_usage_in_bytes"))
> 
> MEMORY_USAGE_IN_BYTES =
> eval(strcat(toUpper(DYNAMIC_SLOT_ID),"_cgroup_memory_usage_in_bytes"))
> 
> 
> [root@dev-cod6-head tmp]# condor_status -autoformat MEMORY_UAGE_IN_BYTES
> 
> undefined
> 
> undefined
> 
> undefined
> 
> -- Bugt oddly enough, this DOES work
> 
> [root@dev-cod6-head tmp]# condor_status -autoformat
> 'strcat(toUpper(DYNAMIC_SLOT_ID),"_cgroup_memory_usage_in_bytes")'
> 
> SLOT1_cgroup_memory_usage_in_bytes
> 
> SLOT1_cgroup_memory_usage_in_bytes
> 
> SLOT1_1_cgroup_memory_usage_in_bytes
> 
> And if I run
> 
> [root@dev-cod6-head tmp]# condor_status -autoformat
> SLOT1_1_cgroup_memory_usage_in_bytes
> 
> 14090240
> 
> 826781696
> 
> 826781696
> 
> This actually appears to work. I was trying to use eval() to actually
> get the proper dynamic slot classad. Can anyone tell me what's going
> on? Been banging my head against the wall for a day
> 
> Best,
> Evan
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