One other detail: I'm running YARN on ECS in AWS. Has anybody seen issues with core allocation in this environment? I'm seeing this in the samza log:
"Got AM register response. The YARN RM supports container requests with max-mem: 14336, max-cpu: 1" How does samza determine this? Looking at the Samza source on Github, it appears to be information that's passed back to the AM when it starts up. Cheers, Malcolm On Mon, Apr 1, 2019 at 10:44 AM Malcolm McFarland <mmcfarl...@cavulus.com> wrote: > > Hi Prateek, > > Sorry, meant to include these versions with my email; I'm running > Samza 0.14 and Hadoop 2.6.1. I'm running three containers across 3 > node managers, each with 16GB and 8 vcores. The other two containers > are requesting 1 vcore each; even with the AMs running, that should be > 4 for them in total, leaving plenty of processing power available. > > The error is in the application attempt diagnostics field: "The YARN > cluster is unable to run your job due to unsatisfiable resource > requirements. You asked for mem: 2048, and cpu: 2." I do not see this > error with the same memory request, but a cpu count request of 1. > > Here are the configuration options pertaining to resource allocation: > > <?xml version="1.0"?> > <configuration> > <property> > <name>yarn.resourcemanager.scheduler.class</name> > > <value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler</value> > </property> > <property> > <name>yarn.nodemanager.vmem-check-enabled</name> > <value>false</value> > </property> > <property> > <name>yarn.nodemanager.vmem-pmem-ratio</name> > <value>2.1</value> > </property> > <property> > <name>yarn.nodemanager.resource.memory-mb</name> > <value>14336</value> > </property> > <property> > <name>yarn.scheduler.minimum-allocation-mb</name> > <value>256</value> > </property> > <property> > <name>yarn.scheduler.maximum-allocation-mb</name> > <value>14336</value> > </property> > <property> > <name>yarn.scheduler.minimum-allocation-vcores</name> > <value>1</value> > </property> > <property> > <name>yarn.scheduler.maximum-allocation-vcores</name> > <value>16</value> > </property> > <property> > <name>yarn.nodemanager.resource.cpu-vcores</name> > <value>8</value> > </property> > <property> > <name>yarn.resourcemanager.cluster-id</name> > <value>processor-cluster</value> > </property> > </configuration> > > Cheers, > Malcolm > > On Mon, Apr 1, 2019 at 10:25 AM Prateek Maheshwari <prateek...@gmail.com> > wrote: > > > > Hi Malcolm, > > > > Just setting that configuration should be sufficient. We haven't seen this > > issue before. What Samza/YARN versions are you using? Can you also include > > the logs from where you get the error and your yarn configuration? > > > > - Prateek > > > > On Mon, Apr 1, 2019 at 2:33 AM Malcolm McFarland <mmcfarl...@cavulus.com> > > wrote: > > > > > Hey Folks, > > > > > > I'm having some issues getting multiple cores for containers in yarn. > > > I seem to have my YARN settings correct, and the RM interface says > > > that I have 24vcores available. However, when I set the > > > cluster-manager.container.cpu.cores Samza setting to anything other > > > than 1, I get a message about how the container is requesting more > > > resources than it can allocate. With 1 core, everything is fine. Is > > > there another Samza option I need to set? > > > > > > Cheers, > > > Malcolm > > > > > > > > > -- > > > Malcolm McFarland > > > Cavulus > > > > > > > -- > Malcolm McFarland > Cavulus > 1-800-760-6915 > mmcfarl...@cavulus.com > > > This correspondence is from HealthPlanCRM, LLC, d/b/a Cavulus. Any > unauthorized or improper disclosure, copying, distribution, or use of > the contents of this message is prohibited. The information contained > in this message is intended only for the personal and confidential use > of the recipient(s) named above. If you have received this message in > error, please notify the sender immediately and delete the original > message. -- Malcolm McFarland Cavulus 1-800-760-6915 mmcfarl...@cavulus.com This correspondence is from HealthPlanCRM, LLC, d/b/a Cavulus. Any unauthorized or improper disclosure, copying, distribution, or use of the contents of this message is prohibited. The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If you have received this message in error, please notify the sender immediately and delete the original message.
