What is the role of the ZooKeeper in Kafka?

Kafka uses ZooKeeper to manage the cluster. ZooKeeper is used to coordinate the brokers/cluster topology. ZooKeeper is a consistent file system for configuration information. ZooKeeper gets used for leadership election for Broker Topic Partition Leaders.

Will Kafka work without ZooKeeper?

In order to run kafka without zookeeper, it can be run using Kafka Raft metadata mode ( KRaft ). There will be a KRaft Quorum of controller nodes which will be used to store the metadata. The metadata will be stored in an internal kafka topic @metadata .

What is ZooKeeper in Kafka remote service?

ZooKeeper is used in distributed systems for service synchronization and as a naming registry. When working with Apache Kafka, ZooKeeper is primarily used to track the status of nodes in the Kafka cluster and maintain a list of Kafka topics and messages.

What is the role of ZooKeeper Mcq?

Explanation: ZooKeeper provides an infrastructure for cross-node synchronization and can be used by applications to ensure that tasks across the cluster are serialized or synchronized. 6.

What happens if ZooKeeper goes down in Kafka?

For example, if you lost the Kafka data in ZooKeeper, the mapping of replicas to Brokers and topic configurations would be lost as well, making your Kafka cluster no longer functional and potentially resulting in total data loss. …

Does Kafka 2.8 need ZooKeeper?

We are excited to announce that 2.8 introduces an early-access look at Kafka without ZooKeeper! The implementation is not yet feature complete and should not be used in production, but it is possible to start new clusters without ZooKeeper and go through basic produce and consume use cases.

What is the role of ZooKeeper in HBase?

ZooKeeper is a high-performance coordination service for distributed applications(like HBase). It exposes common services like naming, configuration management, synchronization, and group services, in a simple interface so you don’t have to write them from scratch.

What is ZooKeeper distributed?

ZooKeeper is a distributed, open-source coordination service for distributed applications. It exposes a simple set of primitives that distributed applications can build upon to implement higher level services for synchronization, configuration maintenance, and groups and naming.

How does ZooKeeper leader election work?

A simple way of doing leader election with ZooKeeper is to use the SEQUENCE|EPHEMERAL flags when creating znodes that represent “proposals” of clients. The idea is to have a znode, say “/election”, such that each znode creates a child znode “/election/guid-n_” with both flags SEQUENCE|EPHEMERAL.

What is the role of ZooKeeper in Hbase architecture Mcq?

Explanation: Zookeeper keeps track of list of online RegionServers, unassigned Regions. 8.

What is the role of zookeeper in Kafka?

Leader detection

Configuration management

synchronization

Detecting when a new node joins or leaves the cluster,etc.

Can I use etcd instead of zookeeper with Kafka?

Etcd can provide the same semantics as Zookeeper for Kafka and since Etcd is the favourable choice in certain environments (e.g. Kubernetes) Kafka should be able to run with Etcd as well. From the user’s point of view should be straightforward to configure to use etcd by just simply specifying a connection string that point to etcd cluster.

What is zookeeper and how zookeeper works?

– Zookeeper is a cluster of multiple servers – One leader, multiple followers – Each server keeps a copy of the data – Global data consistency – Distributed read and write – Update request forwarding is implemented by the leader

What is a zoo keeper?

A zookeeper, sometimes referred as animal keeper, is a person who manages zoo animals that are kept in captivity for conservation or to be displayed to the public. They are usually responsible for the feeding and daily care of the animals.