question CDP 7 placement rules dont work in Support Questions

CDP 7 placement rules dont work

Scout — Thu, 26 Jan 2023 17:01:47 GMT

Hi, trying to set placement rules as described in https://docs.cloudera.com/cdp-private-cloud-base/7.1.6/yarn-allocate-resources/topics/yarn-placement-rule-policies.html, but tasks still in default queue.

Also tried to enable tag-based authorization with the same result.

What could be wrong?

Re: CDP 7 placement rules dont work

Asok — Sun, 26 Feb 2023 13:32:29 GMT

Please share a screenshot of your placement rules

Re: CDP 7 placement rules dont work

mimran — Mon, 27 Feb 2023 09:45:17 GMT

Hello @Scout

First, we need to understand we tried to enable tag-based policy only for Hive jobs because those jobs submitted by proxy user hive. After we enable the tab-bases policy the job submitted with hive user instead of proxy user

Instructions

Step 1:

Enable application tag placement and whitelist hive

In Cloudera Manager, select the YARN service.
Click the Configuration tab.
Search for ResourceManager. In the Filters pane, under Scope, select ResourceManager.
In ResourceManager Advanced Configuration Snippet (Safety Valve) for yarn-site.xml add the following.
Set these two yarn configurations:

yarn.resourcemanager.application-tag-based-placement.enable=true;
yarn.resourcemanager.application-tag-based-placement.username.whitelist=hive;

Step 2:

You need to check, and if not found, add several configuration properties to allow placement of the Hive workload on the Yarn queue manager.

In Cloudera Manager, click Clusters > Hive on Tez> Configuration.
Search for the Hive Service Advanced Configuration Snippet (Safety Valve) for hive-site.xml setting.
In the Hive Service Advanced Configuration Snippet (Safety Valve) for hive-site.xml setting, click +.

In Name enter the property hive.server2.tez.initialize.default.sessions and in value enter false.
In Name enter the property hive.server2.tez.queue.access.check and in value enter true.
In Name enter the property hive.server2.tez.sessions.custom.queue.allowed and in value enter true.

Next you need to add placement rules as below:

Add placement rules >> This rule matches = hive_user >> Custom policy = <yarn.queue.name> (where you want to submit the job.

Note: Order of policy also played vital role, please order properly to move the job in aligned queue.

Re: CDP 7 placement rules dont work

VidyaSargur — Thu, 02 Mar 2023 15:05:31 GMT

@Scout, Has any of the replies helped resolve your issue? If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future.

Re: CDP 7 placement rules dont work

Scout — Fri, 24 Mar 2023 15:22:02 GMT

Hello, sorry for a big delay.

That solution didn't worked for me.

I've set all parameters in Yarn and Hive-on-Tez, but test user going to default query anyway.

Maybe I can check logs or something for that placement rules?

Re: CDP 7 placement rules dont work

Scout — Wed, 29 Mar 2023 09:29:50 GMT

Nope.

We can set queue for spark with --queue argument and it would work.

But the rest requests are ignoring yarn placement rules.

Re: CDP 7 placement rules dont work

Asok — Sat, 01 Apr 2023 15:15:37 GMT

Please share a specific use case, ie. Pick a sample user job that is expected to go to a specific queue and share its placement rules screenshot

Re: CDP 7 placement rules dont work

Salome23 — Sat, 01 Apr 2023 15:30:53 GMT

Hi, I am not able to open a case but I work like a agent for cloudera , I was running the stock market and I am not able to withdraw my deposit since the system give me high package and I can’t manage to cover the overdraft again.. what can I do?

Re: CDP 7 placement rules dont work

Salome23 — Sat, 01 Apr 2023 15:35:10 GMT

someone who can help me with this, I don’t want to lose my money?

Re: CDP 7 placement rules dont work

Scout — Wed, 05 Apr 2023 11:00:44 GMT

Tried to run spark and zeppelin jobs.

application placement rules are:

-submitting user's name = <user>

-place the application into queue named for user / set default queue to / use custom placement rules

- tried to use static and dynamic queues

The results are the same: application runs in default queue

Re: CDP 7 placement rules dont work

JeremyBertelli — Wed, 05 Apr 2023 15:33:02 GMT

You do not have any value for the user name. "This rule mactches: users named <your_user>".
When you fill the rule you should set the name (or group, or application name) of the user that match your placement rule.

Re: CDP 7 placement rules dont work

Scout — Fri, 07 Apr 2023 13:44:40 GMT

Username is set, but deteted due to security reasosns

Re: CDP 7 placement rules dont work

Scout — Tue, 11 Apr 2023 07:59:35 GMT

found in yarn logs records like

failed to save service-tags to cache file '/var/lib/ranger/yarn/policy-cache/yarn_cm_yarn_tag.json'
java.io.FileNotFoundException: /var/lib/ranger/yarn/policy-cache/yarn_cm_yarn_tag.json (Permission denied)

Could it be the core reason?

How can i fix it?

Re: CDP 7 placement rules dont work

AsimShaikh — Thu, 13 Apr 2023 07:25:15 GMT

Hi @Scout

Can you share acl for

/var/lib/ranger/yarn/policy-cache/yarn_cm_yarn_tag.json

Re: CDP 7 placement rules dont work

Scout — Mon, 17 Apr 2023 09:31:00 GMT

ls: cannot access '/var/lib/ranger/yarn/': No such file or directory