If you are upgrading a very short lived cluster (no snapshot on server data directory) you should upgrade to 3.5.7 (not 3.5.6 or less). There was an important issue in the upgrade procedure that has been fixed in 3.5.7
Enrico Il Sab 15 Feb 2020, 07:27 Szalay-Bekő Máté <szalay.beko.m...@gmail.com> ha scritto: > An other page on the wiki you can check: > https://cwiki.apache.org/confluence/display/ZOOKEEPER/Upgrade+FAQ > > Kind regards, > Mate > > On Sat, Feb 15, 2020, 05:55 Alexander Shraer <shra...@gmail.com> wrote: > > > Hi, please see “upgrading to 3.5” section here: > > https://zookeeper.apache.org/doc/r3.5.4-beta/zookeeperReconfig.html > > > > On Fri, Feb 14, 2020 at 8:48 PM shrikant kalani < > shrikantkal...@gmail.com> > > wrote: > > > > > Hi Allen > > > > > > We recently upgrade our Zookeeper clusters from 3.4.13 to 3.5.5. > > > > > > Yes the rolling upgrade are possible and it is backward compatible > > meaning > > > zkclient running on version 3.4.13 can still interact with zkserver > > 3.5.5. > > > > > > Unless you want to leverage dynamic reconfiguration options , the rest > of > > > the configuration are very similar. With new version there are other > > > interesting features like Authentication with Kerberos and TLS , Admin > UI > > > which all are optional. > > > > > > Thanks > > > Srikant Kalani > > > Sent from my iPhone > > > > > > > On 15 Feb 2020, at 6:11 AM, allen chan <allen.michael.c...@gmail.com > > > > > wrote: > > > > > > > > Hello > > > > > > > > I have been trying to find a guide that describes upgrade process > from > > > > 3.4.x to 3.5.x. > > > > I cannot find anything on the main zookeeper page. > > > > What i am looking for are breaking changes, configuration changes, > > > > compatibility matrix, is rolling upgrade ok? > > > > > > > > Thanks > > > > -- > > > > Allen Michael Chan > > > > > >
