I am running HDF 3.0.1.1 which comes with NiFi 1.2.0.3.0.1.1-5. We are using SiteToSiteBulletinReportingTask to monitor bulletins (for things like Disk Usage and Memory Usage). When we restart NiFi via Ambari (either with a Restart or Stop and then Start), when NiFi comes back up the SiteToSiteBulletinReportingTask no longer works. It throws the following error when it is first trying to start up:
SiteToSiteBulletinReportingTask[id=ba6b4499-0162-1000-0000-00003ccd7573] org.apache.nifi.remote.client.PeerSelector@34e976af Unable to refresh Remote Group's peers due to response code 409:Conflict with explanation: null No matter how long we wait, it never works. The ways I have been able to get it to start working again are as follows: * Stop and then Start the Remote Input Port the SiteToSiteBulletinReportingTask is using * Delete the SiteToSiteBulletinReportingTask and create a new one * Wait a while and stop and start the SiteToSiteBulletinReportingTask (however this doesn't work consistently) I have tested the same flow steps using a process that uses a Remote Process Group and a different Remote Input Port, and that RPG throws the same error when first coming up but then starts working after a period of time. So maybe the SiteToSiteBulletinReportingTask isn't trying enough times to connect to the Remote Input Port? Sincerely, Chad Woodhead
