Truong Duc Kien created NIFI-5849:
-------------------------------------
Summary: ListSFTP, ListFTP processors lose Cluster state on
restart.
Key: NIFI-5849
URL: https://issues.apache.org/jira/browse/NIFI-5849
Project: Apache NiFi
Issue Type: Bug
Affects Versions: 1.8.0
Reporter: Truong Duc Kien
In a cluster environment, restarting a processor that extends
{{AbstractListProcessor}} could lead to the erasure of that processor's
existing cluster states.
This bug was introduced in commit
[https://github.com/apache/nifi/commit/8b9d4461185848fd552a639ac14b7926164d5426]
.
Before that commit, the {{resetState}} variable is changed to false after the
state is clear, inside {{updateState}} method. However, the commit moved this
line to inside the {{onTrigger}} method. This is problematic, because
{{onTrigger}} method is only called on the primary node. As a result, the
{{resetState}} variable is only reset to false on primary node, but not on the
other nodes. When the user restarts the processor, every nodes will re-execute
the {{updateState}} method and the Cluster state will be cleared.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
