Alex, so I have 2 nodes .. the first has itself in the dynamic list with an id of 1. server.1=10.1.1.104:2888:3888:participant;0.0.0.0:2181
I have brought the second node up with an id of 2 server.1=10.1.1.104:2888:3888:participant;0.0.0.0:2181 server.2=10.1.1.40:2888:3888:participant;2181 then i am trying to run from the second node. zkCli.sh -server 10.1.1.104 reconfig -add "server.2=10.1.1.40:2888:3888:participant;2181" I get this error on the first server 2021-12-30 17:37:02,880 [myid:1] - INFO [ProcessThread(sid:1 cport:-1)::PrepRequestProcessor@461] - Incremental reconfig 2021-12-30 17:37:02,880 [myid:1] - WARN [ProcessThread(sid:1 cport:-1)::PrepRequestProcessor@532] - Reconfig failed - there must be a connected and synced quorum in new configuration 2021-12-30 17:37:02,880 [myid:1] - INFO [ProcessThread(sid:1 cport:-1)::PrepRequestProcessor@935] - Got user-level KeeperException when processing sessionid:0x1002dfe65610014 type:reconfig cxid:0x1 zxid:0x1600000033 txntype:-1 reqpath:n on the second server issuing the reconfig command I get this error No quorum of new config is connected and up-to-date with the leader of last commmitted config - try invoking reconfiguration after new servers are connected and synced I have not set any security at this point. I am not sure what I am missing at this point, assuming I don't need 2 nodes fully clustered in advance as mentioned by Chris. Thanks, Eric On Thu, Dec 30, 2021 at 11:03 AM Alexander Shraer <shra...@gmail.com> wrote: > This is already possible, since the 3.5.0 release: > > https://zookeeper.apache.org/doc/r3.5.3-beta/zookeeperReconfig.html#sc_reconfig_standaloneEnabled > > After your single node is up and running, you can connect other nodes to it > as described in the reconfig manual. See "Adding servers" in the link > above. > Essentially, you need to specify the new server's initial config files so > that they can find some existing server and start syncing data. Once a > quorum > of the new config is up to date, you can invoke the reconfig command to > officially make them part of the configuration. > > Thanks, > Alex > > On Thu, Dec 30, 2021 at 8:57 AM Eric Edgar > <eric.ed...@smartthings.com.invalid> wrote: > > > Also would it be possible to update the code for this edge case, eg if > the > > current quorum is 1, and you want to add a node then add a flag saying I > > trust the single master and reconfigure itself into a 2 node cluster? > > Thanks, > > Eric > > > > On Thu, Dec 30, 2021 at 10:49 AM Eric Edgar <eric.ed...@smartthings.com> > > wrote: > > > > > Are there any examples with a k8 orchestrator or some sort of docker > init > > > scripts handling the initial cluster configuration? > > > Thanks, > > > Eric > > > > > > On Thu, Dec 30, 2021 at 9:44 AM Chris T. <c.turks...@gmail.com> wrote: > > > > > >> If you want to run a zookeeper cluster you have to start with at > least 2 > > >> members. From there you can scale up with the dynamic reconfig > commands. > > >> Regards > > >> Chris > > >> > > >> On 30 December 2021 16:40:40 Eric Edgar > > >> <eric.ed...@smartthings.com.INVALID> wrote: > > >> > > >> > I am experimenting with zk and the reconfig feature and trying to > > >> > understand if I can start a single zk node and then > reconfig/bootstrap > > >> the > > >> > other 2 nodes into the ensemble. The reconfig command is throwing > an > > >> error > > >> > that there isn't a quorum yet. Is this line of thinking possible? > or > > >> do I > > >> > need to setup the first 3 nodes manually the first time? > > >> > I am basing this experiment off of this web page. > > >> > > > >> > > > https://blog.container-solutions.com/dynamic-zookeeper-cluster-with-docker > > >> > > > >> > /opt/zookeeper/zookeeper/bin/zkCli.sh -server 10.1.1.104:2181 > > reconfig > > >> -add > > >> > "server.2=10.1.1.40:2888:3888:participant;2181" > > >> > No quorum of new config is connected and up-to-date with the leader > of > > >> last > > >> > commmitted config - try invoking reconfiguration after new servers > are > > >> > connected and synced > > >> > > > >> > /opt/zookeeper/zookeeper/bin/zkCli.sh -server 10.1.1.104:2181 > config > > >> > server.1=10.1.1.104:2888:3888:participant;0.0.0.0:2181 > > >> > > > >> > cat ./zoo.cfg > > >> > autopurge.purgeInterval=1 > > >> > initLimit=10 > > >> > syncLimit=5 > > >> > autopurge.snapRetainCount=6 > > >> > tickTime=2000 > > >> > dataDir=/mnt/zookeeper/data > > >> > reconfigEnabled=true > > >> > standaloneEnabled=false > > >> > > > >> > > > dynamicConfigFile=/opt/zookeeper/zookeeper/conf/zoo.cfg.dynamic.1600000000 > > >> > > > >> > What is the best solution for an unattended bootstrap setup of a new > > >> > cluster from scratch? > > >> > > > >> > > > >> > This was something that we were able to accomplish with exhibitor on > > >> older > > >> > versions of zookeeper in the past. > > >> > > >> > > >
