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Lefty Leverenz commented on HIVE-10761: --------------------------------------- FYI, HIVE-10944 also changed the default of *hive.service.metrics.file.location* in both 2.0.0 and 1.3.0, but then HIVE-10927 changed it again. * HIVE-10761 (this issue): original default = file:///tmp/my-logging.properties * HIVE-10944 (first change): file:///tmp/report.json * HIVE-10927 (next change): /tmp/report.json > Create codahale-based metrics system for Hive > --------------------------------------------- > > Key: HIVE-10761 > URL: https://issues.apache.org/jira/browse/HIVE-10761 > Project: Hive > Issue Type: New Feature > Components: Diagnosability > Reporter: Szehon Ho > Assignee: Szehon Ho > Labels: TODOC1.3, TODOC2.0 > Fix For: 1.3.0, 2.0.0 > > Attachments: HIVE-10761.2.patch, HIVE-10761.3.patch, > HIVE-10761.4.patch, HIVE-10761.5.patch, HIVE-10761.6.patch, HIVE-10761.patch, > hms-metrics.json > > > There is a current Hive metrics system that hooks up to a JMX reporting, but > all its measurements, models are custom. > This is to make another metrics system that will be based on Codahale (ie > yammer, dropwizard), which has the following advantage: > * Well-defined metric model for frequently-needed metrics (ie JVM metrics) > * Well-defined measurements for all metrics (ie max, mean, stddev, mean_rate, > etc), > * Built-in reporting frameworks like JMX, Console, Log, JSON webserver > It is used for many projects, including several Apache projects like Oozie. > Overall, monitoring tools should find it easier to understand these common > metric, measurement, reporting models. > The existing metric subsystem will be kept and can be enabled if backward > compatibility is desired. -- This message was sent by Atlassian JIRA (v6.3.4#6332)