Szilard Nemeth commented on YARN-10029:

Thanks [~adam.antal] for this patch.


Some comments:

1. In serializers/yarn-jhs-log.js: 
Maybe I don't get something but the variable name 'paylog' seems odd in this 
code block:

if (payload && payload[0] && payload[0].containerLogInfo) {
 normalizedArrayResponse.data = payload[0].containerLogInfo.map((paylog) => {
 return this.internalNormalizeSingleResponse(store, primaryModelClass, paylog,
 payload[0].containerId, payload[0].nodeId);

2. In serializers/yarn-jhs-log.js, in function normalizeArrayResponse:
Can you add two comments above both if statements? For me it's not clear which 
is doing what. Maybe because of my limited knowledge with EmberJS, though.

3. In adapters/yarn-app-jhs-log.js, in function urlForFindRecord:
Variable cluserId seems unused so it's unnecessary

if (splits[2]) {
 clusterId = splits[2];

4. In loader.js, function getConfigFromYarn: 
I would modify this statement:

Ember.Logger.log("The URL is: " + httpUrl);

Ember.Logger.log("The RM URL is: " + httpUrl);
{code}, or a simiar log message that elaborates more and contains reference to 

5. In loader.js, function transformURL: Could you please add a comment 
explaining what this function does (specifically with the regex)?

> Add option to UIv2 to get container logs from the new JHS API
> -------------------------------------------------------------
>                 Key: YARN-10029
>                 URL: https://issues.apache.org/jira/browse/YARN-10029
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn
>    Affects Versions: 3.2.1
>            Reporter: Adam Antal
>            Assignee: Adam Antal
>            Priority: Major
>         Attachments: YARN-10029.001.patch, YARN-10029.002.patch, 
> YARN-10029.003.patch
> Provided the new API is ready to use (also integrated into JHS in 
> YARN-10028), we can add a new config option to UIv2 that would make the UIv2 
> to request logs from the JHS API similarly as the ATSv2.

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