If it's always around the same time, one of the things to check is cronjobs that run on the server and on all clients at that time. This includes cronjobs that are scheduled to start at that time, and those that start before it and might run long enough to reach a 'critical mass' by that time.
Thomas Op do 24 nov. 2022 om 12:21 schreef <alessia.gagli...@qboxmail.it.invalid>: > Hi, > > we have a strange issue with solr: sometimes, usually everyday at around > midnight, solr becomes unreachable due to a high cpu load and high I/O > activity. > > > Our configurations are: > > - Solr 7.7.3 on CentOS 7 > - Dovecot 2.3.18 on CentOS 7 > - /var/solr is around 250GB > - the Solr server has 40GB of ram / 2GB of swap (not used). > - SOLR_HEAP="30240m" > - sovecot is configured with "fts_autoindex = no" > > It shouldn't be a RAM problem, as only 30% is used before restarting ( > "memory":"8.6 GB (%30.4) of 28.3 GB"}). > > > Does anyone know what could be the cause of this behavior? > > > Thanks, > > AG > > >
