We do not have any scheduled, periodic node restarts. I have been working on Cassandra across many versions, and I have not seen a case where periodic restarts would solve any problem that I saw.
There are certainly times when a node needs a restart – but those are because of specific reasons. Sean Durity From: Vsevolod Filaretov <vsfilare...@gmail.com> Sent: Tuesday, July 17, 2018 8:23 AM To: user@cassandra.apache.org Subject: [EXTERNAL] Re: Cassandra recommended server uptime? @rahul.xavier.si...@gmail.com<mailto:rahul.xavier.si...@gmail.com>, @simon.fontana.oscars...@ericsson.com<mailto:simon.fontana.oscars...@ericsson.com>, Thank you for answers. I've got a really heavy data model, but no GC problems. Moreover, gclog shows very efficient GC process and hardly any GC pauses. So, the question remains open: how general is the practice of semi-periodical C* node restarts? Best regards, Vsevolod. вт, 17 июл. 2018 г., 14:39 Rahul Singh <rahul.xavier.si...@gmail.com<mailto:rahul.xavier.si...@gmail.com>>: It’s likely that if you have server stability issues its because of data model or compaction strategy configurations which lead to out of memory issues or massive GC pauses. Rebooting wouldn’t solve those issues. -- Rahul Singh rahul.si...@anant.us<mailto:rahul.si...@anant.us> Anant Corporation On Jul 17, 2018, 7:28 AM -0400, Simon Fontana Oscarsson <simon.fontana.oscars...@ericsson.com<mailto:simon.fontana.oscars...@ericsson.com>>, wrote: Not anything that I'm aware of. Cassandra can run at months/years without rebooting. It is better to monitor your nodes and if you find anything abnormal a restart can help. -- SIMON FONTANA OSCARSSON Software Developer Ericsson Ölandsgatan 1 37133 Karlskrona, Sweden simon.fontana.oscars...@ericsson.com<mailto:simon.fontana.oscars...@ericsson.com> www.ericsson.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ericsson.com&d=DwMFaQ&c=MtgQEAMQGqekjTjiAhkudQ&r=aC_gxC6z_4f9GLlbWiKzHm1vucZTtVYWDDvyLkh8IaQ&m=leLl7URuNoHLrjZ6v8DRTFkmCwJrNtVaYwLAp66is7g&s=0ypt7SrEVB8AzZhbbMCkSOH_hhNrjn2gn-MXsvpoZac&e=> On tis, 2018-07-17 at 12:09 +0300, Vsevolod Filaretov wrote: Good time of day everyone; Does Cassandra have a "recommended uptime"? I.e., does regular Cassandra node reboots help anything? Are periodical node reboots recommended for general system stability? Best regards, Vsevolod. ________________________________ The information in this Internet Email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this Email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. When addressed to our clients any opinions or advice contained in this Email are subject to the terms and conditions expressed in any applicable governing The Home Depot terms of business or client engagement letter. The Home Depot disclaims all responsibility and liability for the accuracy and content of this attachment and for any damages or losses arising from any inaccuracies, errors, viruses, e.g., worms, trojan horses, etc., or other items of a destructive nature, which may be contained in this attachment and shall not be liable for direct, indirect, consequential or special damages in connection with this e-mail message or its attachment.
