![]() If followers fall too far behind a leader, they will be dropped. ZOO_SYNC_LIMITĪmount of time, in ticks (see tickTime), to allow followers to sync with ZooKeeper. Increased this value as needed, if the amount of data managed by ZooKeeper is large. ![]() For example, the minimum session timeout will be two ticks ZOO_INIT_LIMITĪmount of time, in ticks (see tickTime), to allow followers to connect and sync to a leader. It is used to regulate heartbeats, and timeouts. The length of a single tick, which is the basic time unit used by ZooKeeper, as measured in milliseconds. $ docker run -e "ZOO_INIT_LIMIT=10" -name some-zookeeper -restart always -d 31z4/zookeeper One way to change it is mounting your config file as a volume: Zookeeper configuration is located in /conf. Multiple virtual machines on the same physical host are still vulnerable to the complete failure of that host.Ĭonsider using Docker Swarm when running Zookeeper in replicated mode. It must be a completely separate physical server. Full redundancy requires that each server have its own machine. If something were to happen which caused the machine to die, all of the zookeeper servers would be offline. Please be aware that setting up multiple servers on a single machine will not create any redundancy. Run docker stack deploy -c stack.yml zookeeper (or docker-compose -f stack.yml up) and wait for it to initialize completely. This will start Zookeeper in replicated mode. How to use this image Start a Zookeeper server instance ZooKeeper was a sub-project of Hadoop but is now a top-level project in its own right. The latest release (down to 1.6 on a best-effort basis)Īpache ZooKeeper is a software project of the Apache Software Foundation, providing an open source distributed configuration service, synchronization service, and naming registry for large distributed systems. Official-images repo’s library/zookeeper file ( history)ĭocs repo’s zookeeper/ directory ( history) Official-images PRs with label library/zookeeper ![]() Repo-info repo’s repos/zookeeper/ directory ( history) The Docker Community Forums, the Docker Community Slack, or Stack OverflowĪmd64, arm32v6, arm64v8, i386, ppc64le, s390x Supported tags and respective Dockerfile links You can view the Docker Hub page for this image at Apache ZooKeeper is an open-source server which enables highly reliable distributed coordination.Īnd is provided by the original uploader.
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