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https://issues.apache.org/jira/browse/DRILL-7191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16838778#comment-16838778
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ASF GitHub Bot commented on DRILL-7191:
---------------------------------------
HanumathRao commented on pull request #1762: [DRILL-7191 / DRILL-7026]: RM
state blob persistence in Zookeeper and Integration of Distributed queue
configuration with Planner
URL: https://github.com/apache/drill/pull/1762#discussion_r283471547
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/coord/zk/ZookeeperClient.java
##########
@@ -301,6 +324,54 @@ public void put(final String path, final byte[] data,
DataChangeVersion version)
}
}
+ public void putAsTransaction(Map<String, byte[]> pathsWithData) {
+ putAsTransaction(pathsWithData, null);
+ }
+
+ /**
+ * Puts the given sets of blob and their data's in a transactional manner.
It expects all the blob path to exist
+ * before calling this api.
+ * @param pathsWithData - map of blob paths to update and the final data
+ * @param version - version holder
+ */
+ public void putAsTransaction(Map<String, byte[]> pathsWithData,
DataChangeVersion version) {
Review comment:
Do we currently use non null version. If not then can you please mention it
in the comment that this is needed for future use.
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> RM blobs persistence in Zookeeper for Distributed RM
> ----------------------------------------------------
>
> Key: DRILL-7191
> URL: https://issues.apache.org/jira/browse/DRILL-7191
> Project: Apache Drill
> Issue Type: Sub-task
> Components: Server, Query Planning & Optimization
> Affects Versions: 1.17.0
> Reporter: Hanumath Rao Maduri
> Assignee: Sorabh Hamirwasia
> Priority: Major
> Fix For: 1.17.0
>
>
> Changes to support storing UUID for each Drillbit Service Instance locally to
> be used by planner and execution layer. This UUID is used to uniquely
> identify a Drillbit and register Drillbit information in the RM StateBlobs.
> Introduced a PersistentStore named ZookeeperTransactionalPersistenceStore
> with Transactional capabilities using Zookeeper Transactional API’s. This is
> used for updating RM State blobs as all the updates need to happen in
> transactional manner. Added RMStateBlobs definition and support for serde to
> Zookeeper.
> Implementation for DistributedRM and its corresponding QueryRM apis and state
> management.
> Updated the state management of Query in Foreman so that same Foreman object
> can be submitted multiple times. Also introduced concept of 2 maps keeping
> track of waiting and running queries. These were done to support for async
> admit protocol which will be needed with Distributed RM.
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