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https://issues.apache.org/jira/browse/TEZ-2792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14740826#comment-14740826
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Prakash Ramachandran commented on TEZ-2792:
-------------------------------------------
also getIDsFromRequest in the comment says it can return a list of the form
{code}
Takes in "0,1_0,1_3,2_5_7" and returns [[0],[1,0],[1,3][2,5,7]]
so the inner list can return a list like [2,5,7]
{code}
however where it is called it always assumes the list size is 2 (line 545)
{code}
for (List<Integer> indexes : taskIDs) {
Vertex vertex = getVertexFromIndex(dag, indexes.get(0));
if(vertex == null) {
continue;
}
Task task = getTaskFromIndex(vertex, indexes.get(1));
{code}
> Add AM web service API for tasks.
> ---------------------------------
>
> Key: TEZ-2792
> URL: https://issues.apache.org/jira/browse/TEZ-2792
> Project: Apache Tez
> Issue Type: Sub-task
> Components: UI
> Reporter: Sreenath Somarajapuram
> Assignee: Sreenath Somarajapuram
> Attachments: TEZ-2792.1.patch, TEZ-2792.2.patch, TEZ-2792.3.patch
>
>
> Add AM API for fetching realtime tasks info:
> - API endpoint : /ws/v2/tez/tasksInfo
> - Query Params:
> -- dagID: Just need to pass the dagIndex, (mandatory).
> -- vertexID: Just need to pass the vertexIndex. Can be a comma separated list
> -- taskID: Must be of the format <vertexIndex>_<taskIndex>. For instance task
> with index 5 in vertex 3 can be referenced using the id 3_5. Can be a comma
> separated list.
> -- limit: Maximum number of items to be returned (Defaults to 100).
> - If taskID is passed: All (capped by limit) the specified tasks will be
> returned. vertexID if present wont be considered.
> - IF vertexID is passed: All (capped by limit) tasks under the vertices will
> be returned.
> - If just dagID is passed: All (capped by limit) tasks under the DAG will be
> returned.
> - Data returned: complete task id, progress, status
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