question FetchSFTP failed to fetch all file in the listSFTP with logs (FileRemovalAction Removed expired Provenance) in Support Questions

question FetchSFTP failed to fetch all file in the listSFTP with logs (FileRemovalAction Removed expired Provenance) in Support Questions https://community.cloudera.com/t5/Support-Questions/FetchSFTP-failed-to-fetch-all-file-in-the-listSFTP-with-logs/m-p/213838#M175762 Hi,I have tried to get files from a several folders at remote server simultaneously using ListSFTP-> FetchSFTP. Results, some files are missing from download without any error message (comm failed, file not found or permission denied). When I have checked the nifi-app-logs, I have got some message as below. What does this message mean? Is there something to do with "Data timeout" or/and "Connexion timeout" parameter in FetchSFTP ou ListSFTP processors?Thank you for your suggestion.Emma<PRE>2018-10-18 09:54:30,163 INFO [Provenance Maintenance Thread-2]o.a.n.p.expiration.FileRemovalAction Removed expired ProvenanceTable-of-Contents file /nifi-repository-provenance/toc/64059747.toc </PRE> Fri, 19 Oct 2018 20:06:48 GMT emmaixiato 2018-10-19T20:06:48Z