You are right. Since YARN did not implement anti-affinity, Slider implemented it in its own way. No special YARN feature was used to implement Slider¹s anti-affinity. Which hadoop version are you using?
By the way, I hope you are following https://issues.apache.org/jira/browse/YARN-4692 - Slider is being deprecated and has been rolled into YARN as a first class module (already in trunk now and most likely the first release will be 3.1.x). It is being referred to as ³YARN Service² now - https://github.com/apache/hadoop/blob/trunk/hadoop-yarn-project/hadoop-yarn /hadoop-yarn-site/src/site/markdown/yarn-service/QuickStart.md -Gour On 12/4/17, 3:09 PM, "Juan Rodríguez Hortalá" <juan.rodriguez.hort...@gmail.com> wrote: >One more question, in >https://slider.incubator.apache.org/docs/configuration/resources.html#plac >ement >it says that "Once YARN adds support for this, Slider will support it." >and >https://issues.apache.org/jira/browse/YARN-1042 for "add ability to >specify >affinity/anti-affinity in container requests" is still unresolved. However >in I see ANTI_AFFINITY_REQUIRED in >https://github.com/apache/incubator-slider/blob/develop/slider-core/src/ma >in/java/org/apache/slider/providers/PlacementPolicy.java#L57 >and other places of the code. Is anti affinity implemented in slider >before >YARN-1042, by other means independent from that YARN feature? Is there a >minimal version of YARN required to use anti affinity in Slider? > >Thanks again, > >Juan > >On Mon, Dec 4, 2017 at 2:56 PM, Juan Rodríguez Hortalá < >juan.rodriguez.hort...@gmail.com> wrote: > >> Thanks a lot Gour! I'll do so. >> >> Greetings, >> >> Juan >> >> On Fri, Dec 1, 2017 at 11:38 PM, Gour Saha <gs...@hortonworks.com> >>wrote: >> >>> Set yarn.component.placement.policy to 4 for the component in >>> resources.json to get anti- affinity. >>> >>> -Gour >>> >>> - Sent from my iPhone >>> >>> On Dec 1, 2017, at 7:14 PM, Juan Rodr?guez Hortal? < >>> >>>juan.rodriguez.hort...@gmail.com<mailto:juan.rodriguez.hort...@gmail.com >>>>> >>> wrote: >>> >>> Hi, >>> >>> I'm new to slider, and I'm trying to run an application for a >>>distributed >>> database on slider using simple packaging. I have to specify a RPC port >>> that should be the same in all daemons running in each node. The >>>problem >>> is >>> that if 2 containers for this application are running on the same node >>> then >>> they would try to use the same port. It is possible to specify somehow >>> that >>> we don't want to have more than one container for a specific component >>>of >>> the application running in the same node? >>> >>> Thanks in advance. >>> >>> Juan >>> >> >>
