Sahil Takiar created IMPALA-9243:
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Summary: Coordinator Web UI should list which executors have been
blacklisted
Key: IMPALA-9243
URL: https://issues.apache.org/jira/browse/IMPALA-9243
Project: IMPALA
Issue Type: Improvement
Reporter: Sahil Takiar
Currently, information about which nodes are blacklisted only shows up in
runtime profiles and Coordinator logs. It would be nice to display blacklisting
information in the Web UI as well so that a user can view which nodes are
blacklisted at any given time.
One potential place to put the blacklisting information is in the /backends
page, which already lists out all the backends part of the cluster. A new
column called "Status" which can have values of either "Active" or
"Blacklisted" would be nice (perhaps we should re-factor the "Quiescing" column
to use the new "Status" column as well). This is similar to what the Spark Web
UI does for blacklisted nodes:
[https://ndu0e1pobsf1dobtvj5nls3q-wpengine.netdna-ssl.com/wp-content/uploads/2019/08/BLACKLIST-SCHEDULING.png]
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