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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/28291/
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Review request for Ambari, Nate Cole, Srimanth Gunturi, and Tom Beerbower.
Bugs: AMBARI-8400
https://issues.apache.org/jira/browse/AMBARI-8400
Repository: ambari
Description
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Ambari's various dispatchers (such as Email and SNMP) can benefit from having a
mechanism where a template can be defined for the construction of notification
data. This decouples the content that Ambari is sending from the logic to
compute the aggregate alerts.
Apache Velocity is a good choice for this requirement as it includes a maturing
template language, VTL.
A single XML file that ships with Ambari will contain the default templates for
known alert target types. There will be an option to override the use of this
file with a user-specified location via ambari.properties. In the event that a
user-specific XML file cannot be parsed, appropriate exceptions will be thrown,
but the {{AlertNoticeDispatchService}} will attempt to gracefully fallback on
other content rendering options (such as the internal XML file).
The following data should be exposed to VTL:
- a list of all alert changes
-- alert name, state, date, label
-- a list for each state change
-- lists for all alerts, broke down by service and state
- a list of all services with an alert
- a list of all hosts with an alert
- total counts of changes separated
-- one count for each alert state
Diffs
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ambari-server/src/main/java/org/apache/ambari/server/AmbariService.java
PRE-CREATION
ambari-server/src/main/java/org/apache/ambari/server/api/query/render/AlertSummaryGroupedRenderer.java
0dbeb5c
ambari-server/src/main/java/org/apache/ambari/server/configuration/Configuration.java
0a96193
ambari-server/src/main/java/org/apache/ambari/server/controller/ControllerModule.java
2d91462
ambari-server/src/main/java/org/apache/ambari/server/notifications/DispatchFactory.java
13f2da2
ambari-server/src/main/java/org/apache/ambari/server/notifications/dispatchers/EmailDispatcher.java
a5dad84
ambari-server/src/main/java/org/apache/ambari/server/state/services/AlertNoticeDispatchService.java
72487b3
ambari-server/src/main/resources/alert-templates.xml PRE-CREATION
ambari-server/src/main/resources/stacks/BIGTOP/0.8/services/HDFS/alerts.json
96cb931
ambari-server/src/main/resources/stacks/HDP/1.3.2/services/HDFS/alerts.json
11836b3
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/HDFS/alerts.json
e58c4a3
ambari-server/src/test/java/org/apache/ambari/server/state/services/AlertNoticeDispatchServiceTest.java
PRE-CREATION
Diff: https://reviews.apache.org/r/28291/diff/
Testing
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New tests written to cover dispatch service.
mvn clean test
Thanks,
Jonathan Hurley
