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https://issues.apache.org/jira/browse/STORM-817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14556896#comment-14556896
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ASF GitHub Bot commented on STORM-817:
--------------------------------------
GitHub user sumitchawla opened a pull request:
https://github.com/apache/storm/pull/561
STORM-817: Support for Kafka Wildcard topics
Support for Wildcard match of topics based on Config -
"kafka.topic.wildcard.match". If this config is specified then Topics matching
the pattern are picked for listening to messages.
Implementation Details:
1. DynamicBrokerReader now returns a list of GlobalPartitionInformation.
Each object is tied to a topic.
2. Partition object now has a topic. Each parition belongs to a
specific topic
3. DynamicPartitonConnections keeps a map of topic_partiton registration
4. Kafka Metrics are written per topic.
5. PartitionManager uses Partition.topic for calculating commit path.
Commit path for wildcard topic scenario will be
_spoutConfig.id/topic_ABC/partition_0; For non-wildcard use, the path will be
_spoutConfig.id/partition_0. This way the change is backward compatible with
previously committed ZK offsets.
6. New Test case DynamicBrokerReaderTests. testGetBrokerInfoWildcardMatch
for testing topic discovery.
7. Manually tested Kafka Single Topic, Wildcard topics, Trident Topic,
Wildcard topics.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sumitchawla/storm master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/storm/pull/561.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #561
----
commit 455435adffd873d98eedc77f428b7d76f94f8bba
Author: Sumit Chawla <[email protected]>
Date: 2015-05-22T21:38:30Z
STORM-817: Support for Kafka Wildcard topics
----
> Kafka Wildcard Topic Support
> ----------------------------
>
> Key: STORM-817
> URL: https://issues.apache.org/jira/browse/STORM-817
> Project: Apache Storm
> Issue Type: New Feature
> Components: storm-kafka
> Reporter: Sumit Chawla
> Assignee: Sumit Chawla
>
> Creating a feature request for supporting Wildcard Topic's for Kafka Spout.
> We want to be able to run a aggregation stream for data coming from all
> tenants. Tenants get added dynamically. So new kafka topics get created. All
> the topics will be matching a regex pattern.
> example:
> clickstream:tenant1:log
> clickstream:tenant2:log
> clickstream:tenant3:log
> Storm code should be able to perform auto-discovery, and should be able to to
> fetch from newly created topics in run time.
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