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Questions tagged [zookeeper]

49 questions
15
votes
1 answer

Get zookeeper cluster status

Is there a cli or some command-line, that I can use to find the zookeeper cluster status. Basically I want to know how to member in cluster or which nodes is acting as a leader. Any pointers will be helpful. Saw this question in stackoverflow:…
Sumit Murari
  • 255
2
votes
2 answers

Zookeeper starts using bin/zkServer.sh but not with service nor zookeeper-server

On Linux Scientific I have installed ZooKeeper from CDH5. When starting zookeeper using sudo service zookeeper-server start or zookeeper-server start it reports the server running, but fails silently. If I start it using bin/zkServer.sh it runs…
Bayes
  • 21
1
vote
1 answer

Zookeeper - faulty cluster member replacement

I am aware that as long as there is quorum my zookeeper ensemble will keep working. But does the missing server have any notable impact on the cluster performance? Let's suppose 1 of 3 servers crashes (and gets hdd destroyed). I guess I can join a…
fiction
  • 173
1
vote
1 answer

Gracefully take down a Zookeeper Node

I have had a hard disk begin to fail on one of my Zookeeper nodes in a cluster of 3 nodes. It is only a matter of time until the disk dies completely. Rather than waiting for this, I'd like to remove this node from the cluster gracefully as it is…
BlackVegetable
  • 139
1
vote
1 answer

How to maintain zookeeper ensemble?

I have a 3 node zookeeper ensemble running from where I had trouble with one node showing a corrupt db. Now I found in the docs that it has to be cleared regularily with the help of cron running this command: java -cp zookeeper.jar:log4j.jar:conf…
merlin
  • 2,172
0
votes
0 answers

How to enable TLSv1.3 on Zookeeper 3.8

I had set the below properties in zoo.cfg to enable TLSv1.3 on zookeper 3.8.0 , but in the logs I see that zookeeper is connected to other zookeeper node on TLSv1.2 that is the default version. I want to know how can I enable TLSv1.3 on zookeeper…
kapil shewate
  • 1
0
votes
0 answers

What are the risks in running single Zookeeper instance in production?

I'm considering using Zookeeper to manage shared configuration across multiple services that live on a single application server. Usage would be very low volume, mostly reads. My production system uses 2 VMs: one application server and one…
Remi Despres-Smyth
  • 141
  • 8