How can I remove peer without shutdown all peer?

[Richard Lee]

Hi,

    I have a cluster with 3 master peers and several volumes. When I'm going to  replace one  peer from cluster, I found other peers keep its info in memory, now I have 4 master peers with 1 dead node which will never up. I can stop all master peers and remove it.  So how can I remove it from my cluster without stop all peers , or just keep it ?

[ChrisLu]

You can stop all the masters, remove the folders that "-mdir" points to, and restart the masters.

Chris

[杨斌]

Hi Chris,

I did as what you said to remove the peer but still got the dead node show up. Anything I missed to get it removed please?

Here is the steps I used for testing:

1. starting 4 master nodes on 3 virtual machines which were working fine as below
10.12.6.11
weed master -mdir=/home/seaweedfs/seaweedfs/mdata -ip=10.12.6.11 -ip.bind=10.12.6.11 -port=9333 -peers=10.12.6.11:9333,10.12.6.12:9333,10.12.6.13:9333,10.12.6.13:9334 -defaultReplication=110
10.12.6.12
weed master -mdir=/home/seaweedfs/seaweedfs/mdata -ip=10.12.6.12 -ip.bind=10.12.6.12 -port=9333 -peers=10.12.6.11:9333,10.12.6.12:9333,10.12.6.13:9333,10.12.6.13:9334 -defaultReplication=110
10.12.6.13
weed master -mdir=/home/seaweedfs/seaweedfs/mdata -ip=10.12.6.13 -ip.bind=10.12.6.13 -port=9333 -peers=10.12.6.11:9333,10.12.6.12:9333,10.12.6.13:9333,10.12.6.13:9334 -defaultReplication=110
weed master -mdir=/home/seaweedfs/seaweedfs/mdata_9334 -ip=10.12.6.13 -ip.bind=10.12.6.13 -port=9334 -peers=10.12.6.11:9333,10.12.6.12:9333,10.12.6.13:9333,10.12.6.13:9334 -defaultReplication=110

2. stop all masters and remove the directory mdata_9334 in 10.12.6.13
3. restart the rest 3 masters, I still could see 10.12.6.13:9334 existing in peers...


Btw, I checked all conf file in the folder where mdir points to, all are still showing as this:{"commitIndex":109,"peers":[{"name":"10.12.6.12:9333","connectionString":"http://10.12.6.12:9333"},{"name":"10.12.6.11:9333","connectionString":"http://10.12.6.11:9333"},{"name":"10.12.6.13:9334","connectionString":"http://10.12.6.13:9334"}]}.

So I

Thanks,
Joe


在 2017年4月11日星期二 UTC+8上午2:45:10，ChrisLu写道：