Thanks Hannu, Another question is that,do I need to stop the frontend application during the upgrade? I have 3 nodes cluster,let’s say: Cassandra01 Cassandra02 Cassandra03
First I upgrade the cassandra01 node, 1,nodetool drain 2,backup data 3,install new binary 4,configure the configuration file 5,start Cassandra service 6,nodetool upgrade Then another node one by one do I need to stop the frontend application during the upgrade? Best Regards, 倪项菲/ David Ni 中移德电网络科技有限公司 Virtue Intelligent Network Ltd, co. Add: 2003,20F No.35 Luojia creative city,Luoyu Road,Wuhan,HuBei Mob: +86 13797007811|Tel: + 86 27 5024 2516 发件人: Hannu Kröger <hkro...@gmail.com> 发送时间: 2018年5月3日 15:00 收件人: user <user@cassandra.apache.org> 主题: Re: upgrade from 3.9 to 3.11.2 Hello, it never hurts to run “nodetool upgradesstables" after the upgrade. It’s a no-op if there is nothing to upgrade. Hannu On 3 May 2018, at 09:57, Xiangfei Ni <xiangfei...@cm-dt.com<mailto:xiangfei...@cm-dt.com>> wrote: Hi Community I have a question regarding upgrading Cassandra from 3.9 to 3.11.2, Do I need to run nodetool upgradesstables when I do the upgrade?we know that we don’t need to run this command when we do minor version upgrade.But from 3.9 to 3.11.2,I have no idea. Also I suggest that the community should have official article about the upgrading,everytime I do upgrade we can just google the posts via internet. Best Regards, 倪项菲/ David Ni 中移德电网络科技有限公司 Virtue Intelligent Network Ltd, co. Add: 2003,20F No.35 Luojia creative city,Luoyu Road,Wuhan,HuBei Mob: +86 13797007811|Tel: + 86 27 5024 2516
