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From Grandl Robert <rgra...@yahoo.com>
Subject Re: Fw: blacklist additions/removals not propagated to RM
Date Mon, 25 Nov 2013 19:20:01 GMT
I checked those places Zhijie. As I mentioned before in ApplicationMasterProtocolPBClientImpl#allocate,
which is further down in YarnScheduler#allocate, if I print the blacklist at the beginning
of the function:
LOG.info("RM --> allocate request from AM; blacklist_a="+request.getResourceBlacklistRequest().getBlacklistAdditions().toString());

it shows me the right list, but if I print after requestProto:
LOG.info("RM --> allocate request from AM; blacklist_a="+requestProto.getBlacklistRequest().getBlacklistAdditionsList().toString());
it is empty. 

It seems things are screwed up somewhere in yarn-api. I will open a jira and maybe you can
take a look please. 


On Monday, November 25, 2013 11:09 AM, Zhijie Shen <zshen@hortonworks.com> wrote:
Hi Grandl,

Have you checked the following log message "Update the blacklist for ..."?
What did it tell?

BTW, YarnScheduler#allocate takes the blacklist additions/removes. You may
also want to verify YarnScheduler#allocate gets the empty list or not.


On Mon, Nov 25, 2013 at 10:38 AM, Grandl Robert <rgrandl@yahoo.com> wrote:

> I am not sure I posted this question in the right thread.
> Do you have some thoughts with the below mail ? Is there any configuration
> parameter for RM to enable blacklisting ? Anyway, it seems my blacklist is
> sent empty to RM, so I think is an AM problem though.
> Please let me know about your thoughts,
> robert
> On Saturday, November 23, 2013 2:31 PM, Grandl Robert <rgrandl@yahoo.com>
> wrote:
> Hi,
> I am not 100% sure it's a bug in AM, but it seems so. I am blacklisting
> some hosts, which are send through an AllocateRequest in makeRemoteRequest
> method in RMContainerRequest.java.
> However, the blacklist is empty at RM. I traced all over the places where
> this is lost, and I found that in
> ApplicationMasterProtocolPBClientImpl.java, in allocate(AllocateRequest
> request) method, if I print the
> request.getResourceBlacklistRequest().getBlacklistAdditiions() I see the
> list, but after it does AllocateRequestProto requestProto = (..).getProto(),
> and I print the requestProto.getBlacklistRequest().getBlacklistAdditions()
> now is EMPTY.
> So basically, AM send an empty black list to RM. I went even further down
> and traced till YarnServiceProtos.java(in hadoop-yarn-api), but at this
> point all the logs I have, are removed. it seems this code is regenerated
> every time I am compiling yarn-api ....
> Is there something I am missing guys, or is a bug ? Interesting is that
> release containers list is propagated correctly but I think it comes on
> other path. I am running hadoop-yarn 2.3.
> Thanks,
> robert

Zhijie Shen
Hortonworks Inc.

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