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ASF GitHub Bot logged work on HIVE-21822: ----------------------------------------- Author: ASF GitHub Bot Created on: 04/Jun/19 18:17 Start Date: 04/Jun/19 18:17 Worklog Time Spent: 10m Work Description: odraese commented on pull request #657: HIVE-21822: Expose LlapDaemon metrics through a new API method URL: https://github.com/apache/hive/pull/657#discussion_r290429935 ########## File path: llap-server/src/java/org/apache/hadoop/hive/llap/daemon/impl/LlapProtocolServerImpl.java ########## @@ -302,6 +306,18 @@ public GetTokenResponseProto getDelegationToken(RpcController controller, return responseProtoBuilder.build(); } + @Override + public LlapDaemonProtocolProtos.GetLoadMetricsResponseProto getLoadMetrics(final RpcController controller, + final LlapDaemonProtocolProtos.GetLoadMetricsRequestProto request) throws ServiceException { + LlapDaemonProtocolProtos.GetLoadMetricsResponseProto.Builder responseProtoBuilder = Review comment: We already have a metrics provider (LlapDaemonExecutorMetrics) here. Shouldn't we just dump all defined counters (of this metrics) as key/value entries to a Map instead of "splitting out" two separate values? From an extensibility perspective, I would like to avoid that for each upcoming (required daemon) counter, we have to - add a new value to the proto message (and regenerate the protobuf impl) - add a new getter to the metrics - change the code to copy the value from the metric to the message We can't simply wrap the metrics instance into a proto response but it should be fairy easy ti generically convert it into a Map (every counter already has a string identifier) and return that map as part of the message. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 253905) > Expose LlapDaemon metrics through a new API method > -------------------------------------------------- > > Key: HIVE-21822 > URL: https://issues.apache.org/jira/browse/HIVE-21822 > Project: Hive > Issue Type: Sub-task > Components: llap > Reporter: Peter Vary > Assignee: Peter Vary > Priority: Major > Labels: pull-request-available > Attachments: HIVE-21822.patch > > Time Spent: 20m > Remaining Estimate: 0h > > We should add a new API method to access specific LlapDaemon metrics which > would provide information to TezAMs to make good decisions on load balancing > tasks -- This message was sent by Atlassian JIRA (v7.6.3#76005)