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Posted to issues@metron.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/04/11 19:56:00 UTC
[jira] [Commented] (METRON-1520) Add caching for stellar field
transformations
[ https://issues.apache.org/jira/browse/METRON-1520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16434480#comment-16434480 ]
ASF GitHub Bot commented on METRON-1520:
----------------------------------------
GitHub user cestella opened a pull request:
https://github.com/apache/metron/pull/990
METRON-1520: Add caching for stellar field transformations
## Contributor Comments
Given how important caching is in the enrichment topology, we should have caching for stellar field transformations in the parsers as well.
Beyond a smoketest ensuring data flows into the indices, you may test this by creating a new parser with a field transformation and ensuring stellar field transformations function as expected.
* Create a new parser by editing `$METRON_HOME/config/zookeeper/parsers/dummy.json` to have the following content:
```
{
"parserClassName":"org.apache.metron.parsers.json.JSONMapParser",
"sensorTopic":"dummy",
"fieldTransformations" : [
{ "transformation" : "STELLAR"
,"output" : [ "new_field"]
,"config" : {
"new_field" : "JOIN( [ TO_UPPER(source.type), field ], ',' )"
}
}
]
}
```
* Create the dummy kafka topic via `/usr/hdp/current/kafka-broker/bin/kafka-topics.sh --zookeeper node1:2181 --create --topic dummy --partitions 1 --replication-factor 1`
* Push the zookeeper configs via `$METRON_HOME/bin/zk_load_configs.sh --mode PUSH -i $METRON_HOME/config/zookeeper -z node1:2181`
* Start the parser via `$METRON_HOME/bin/start_parser_topology.sh -k node1:6667 -z node1:2181 -s dummy`
* Create some dummy data by creating a file at `~/dummy.dat` with the following:
```
{ "field" : "f1", "source.type" : "dummy" }
{ "field" : "f2", "source.type" : "dummy" }
{ "field" : "f3", "source.type" : "dummy" }
{ "field" : "f4", "source.type" : "dummy" }
{ "field" : "f5", "source.type" : "dummy" }
{ "field" : "f6", "source.type" : "dummy" }
{ "field" : "f7", "source.type" : "dummy" }
```
* Send the dummy data in via `cat ~/dummy.dat | /usr/hdp/current/kafka-broker/bin/kafka-console-producer.sh --broker-list node1:6667 --topic dummy`
* Ensure the data written to the indices has a field `new_field` that looks like `DUMMY,${field}`
## Pull Request Checklist
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```
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#### Note:
Please ensure that once the PR is submitted, you check travis-ci for build issues and submit an update to your PR as soon as possible.
It is also recommended that [travis-ci](https://travis-ci.org) is set up for your personal repository such that your branches are built there before submitting a pull request.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cestella/incubator-metron parsercache
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/metron/pull/990.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 #990
----
commit 93cc3bc80a01ec2b82a88d2812c17de09d122c6c
Author: cstella <ce...@...>
Date: 2018-04-09T21:45:27Z
Updating stellar transformations to use caching.
commit c38d5a2a91f9eebf428b40db3c3165152f27a786
Author: cstella <ce...@...>
Date: 2018-04-10T13:46:19Z
Updating test.
commit 1502e739a833dbe5de76e8a36b19727f846ebbd7
Author: cstella <ce...@...>
Date: 2018-04-10T19:30:41Z
Updating readme.
commit f0a029d80b95f8d34141623f6ffcf83bdb8bb181
Author: cstella <ce...@...>
Date: 2018-04-10T20:17:05Z
updating test
commit 14487f0ef3d1aa9690e74a1a04fd8a49eb9a89d6
Author: cstella <ce...@...>
Date: 2018-04-11T14:59:24Z
Merge branch 'master' into parsercache
commit 936c501e758f06e8bfd0d390cf6c6f755f1f56e8
Author: cstella <ce...@...>
Date: 2018-04-11T19:49:21Z
Fixing bug
----
> Add caching for stellar field transformations
> ---------------------------------------------
>
> Key: METRON-1520
> URL: https://issues.apache.org/jira/browse/METRON-1520
> Project: Metron
> Issue Type: Improvement
> Reporter: Casey Stella
> Priority: Major
>
> Given how important caching is in the enrichment topology, we should have caching for stellar field transformations in the parsers as well.
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