[jira] [Created] (NIFI-12160) Check if all the necessary nars have been fully unpacked before starting a connector

["Peter Gyori (Jira)" <ji...@apache.org>]

Peter Gyori created NIFI-12160:
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             Summary: Check if all the necessary nars have been fully unpacked before starting a connector
                 Key: NIFI-12160
                 URL: https://issues.apache.org/jira/browse/NIFI-12160
             Project: Apache NiFi
          Issue Type: Bug
          Components: Extensions
            Reporter: Peter Gyori
            Assignee: Peter Gyori


Each deployed Stateless NiFi-based Kafka Connect connector has a directory under DEFAULT_WORKING_DIRECTORY (/tmp/nifi-stateless-working) where the necessary NARs are unpacked.

If the job doing the unpacking is interrupted for some reason, the connector's directory will exist without having all the necessary files in it. In a case like this when the connector is started it detects the directory so it does not unpack the NARs again however the missing files cause various errors.

Currently the solution is manual: the connector's directory needs to be deleted from /tmp/nifi-stateless-working and the connector needs to be redeployed.

A fix should be created for this issue so that the system detects that unpacking hadn't been finished and does the unpacking properly before deployment.



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