Thanks for your help guys. You were right, the problem actually came from a very heavy data treatment that happens every 2 hours starting at midnight. The processing performance was heavily affected causing one node to write hints because communication with the other node was complicated. Best regards,
Loïc CHANEL System Big Data engineer SoftAtHome (Lyon, France) Le lun. 16 janv. 2023 à 17:23, Gábor Auth <auth.ga...@gmail.com> a écrit : > Hi, > > On Mon, Jan 16, 2023 at 3:07 PM Loïc CHANEL via user < > user@cassandra.apache.org> wrote: > >> So my question here is : am I missing a Cassandra internal process that >> is triggered on a daily basis at 0:00 and 2:00 ? >> > > I bet, it's not a Cassandra issue. Have you any other metrics about your > VPSs (CPU, memory, load, IO stat, disk throughput, network traffic, etc.)? > I think, some process (on another virtual machine or host) steals your > resources and your Cassandra cannot process the request and the other > instance need to put data to hints. > > -- > Bye, > Gábor Auth >