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

["Sarmiento, Evan" <esarmien@xxxxxxxxxxxxx>]

Hi Brian,

I am using the built in cgroup support actually. What I'm trying to do
is have the Machine Slots advertise in Machine ClassAds their CGROUP
attributes, which they do not now (I think?)

Best,
Evan


On Thu, Aug 28, 2014 at 12:08 PM, Brian Bockelman <bbockelm@xxxxxxxxxxx> wrote:
> 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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>
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