GitHub user cestella opened a pull request: https://github.com/apache/incubator-metron/pull/170
METRON-253: Reloading parser configurations from zookeeper doesn't call init() This results in a NPE if you do not specify an output column (this output column gets inferred as part of init()) To validate this: * Get a running topology * Run `/usr/metron/0.2.0BETA/bin/zk_load_configs.sh -m PUSH -i /usr/metron/0.2.0BETA/config/zookeeper -z node1:2181` * Wait a full 2 minutes * Check the `parser_error` topic via the kafka console consumer and ensure you don't see any weird NPEs The problem here is that init() is not getting run on the sensor parser config, so some syntactic sugar in the FieldTransformer isn't getting updated. Specifically, if you only specify `input` and not `output`, then it will NPE. You can merge this pull request into a Git repository by running: $ git pull https://github.com/cestella/incubator-metron yaf_npe Alternatively you can review and apply these changes as the patch at: https://github.com/apache/incubator-metron/pull/170.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 #170 ---- commit b0d391c143e3f14a16cadcac6ab91e6863b1be8d Author: cstella <ceste...@gmail.com> Date: 2016-06-22T20:27:31Z METRON-253: Reloading parser configurations from zookeeper doesn't call init() ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---