Hi, Why the large Solr heap? What is happing around midnight? A nightly batch index? Try lowering it from 30240m to e.g. 16g (or even lower) and see how it goes.
Jan > 24. nov. 2022 kl. 12:21 skrev alessia.gagli...@qboxmail.it.invalid > <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 > >
