1. Apache Flume can be used in situations where we want to collect data from various sources and store them in a Hadoop system. 2. We can use Whenever we need to process large volume and high speed data into Hadoop system, Flume.

What are the benefits of using Flume?

Pros: Sink Scalable, reliable, fault tolerant and customizable for different sources and sinks. Apache Flume can store data in centralized storage such as HBase and HDFS (ie data is served from a single storage). Flume is horizontally scalable.

What is the main purpose of Flume?

The purpose of Flume is Provides a distributed, reliable and available system for efficiently collecting, aggregating and moving large volumes of log data from many disparate sources to a centralized data store. Flume NG’s architecture is based on several concepts that together contribute to this goal.

What is the preferred alternative to Flume?

Some of the top alternatives to Apache Flume are Apache SparkLogstash, Apache Storm, Kafka, Apache Flink, Apache NiFi, Papertrail, and more.

What is the difference between NiFi and Kafka?

To continue with some of the benefits of each tool, NiFi can execute shell commands, Python, and several other languages ​​on streaming datawhile Kafka Streams allows the use of Java (although custom NiFi processors are also written in Java, which incurs more overhead in development).

The legendary voice I learned from Flume

18 related questions found

What are the ingredients of the Flume agent?

A Flume agent consists of three elements: Sources, Channels and Receivers. A channel connects the source to the sink. You must configure each element in the Flume agent. As described in the Flume documentation, different source, channel, and sink types have different configurations.

Which of the following is a source in Flume?

An Apache Flume source is a component in a Flume agent that receives data from external sources and pass it to one or more channels. It uses data from external sources such as web servers. External data sources send data to Apache Flume in a format recognized by the target Flume source.

What is the Apache Flume architecture?

Apache Flume is an open source tool.It has a simple and reliable architecture i.e. Stream based data flow. Flume is highly robust and fault-tolerant, with built-in features such as reliability, failover and recovery mechanisms. Mainly used to replicate streaming data (log data) from other sources to HDFS.

Why is Kafka better than RabbitMQ?

Kafka provides Much higher performance than message brokers Like RabbitMQ. It uses sequential disk I/O to improve performance, making it a suitable option for implementing queues. It enables high throughput (millions of messages per second) with limited resources, which is a must for big data use cases.

What is the difference between sqoop and Kafka?

Sqoop is used for Batch transfer data between Hadoop and relational databases And support data import and export. … Kafka is used to build real-time streaming data pipelines, transferring data between systems or applications, transforming data streams, or reacting to data streams.

What is the difference between Flume and sqoop?

1. Sqoop is Designed to exchange massive amounts of information between Hadoop and relational databases. Whereas Flume is used to collect data from disparate sources that are generating data about a specific use case and then transferring large amounts of data from distributed resources to a single centralized repository.

What are the advantages, disadvantages and uses of Parshall sinks?

The advantages of Parshall sinks are: (1) it passes easily through sediments and small litter, (2) it requires only a small head loss, and (3) enables accurate flow measurements even when partially submerged. One disadvantage of the Parshall sink is that it is not accurate at low flow rates.

What are the characteristics of the sink?

Features of Apache Flume

• Open source. Apache Flume is an open source distributed system. …
• data flow. Apache Flume allows its users to build multi-hop, fan-in and fan-out flows. …
• reliability. …
• recoverability. …
• Steady flow. …
• lurking. …
• Easy to use. …
• Reliable messaging.

How to run sink proxy?

​Start the sink

1. To start Flume directly, run the following command on the Flume host: /usr/hdp/current/flume-server/bin/flume-ng agent -c /etc/flume/conf -f /etc/flume/conf/flume. conf -n proxy.
2. To start Flume as a service, run the following command on the Flume host: service flume-agent start.

Where is Flume used?

sink. Apache sink. Apache Flume is an open source, powerful, reliable and flexible system Collect, aggregate and move large amounts of unstructured data from multiple data sources to HDFS/Hbase (for example) in a distributed fashion through strong coupling to the Hadoop cluster.

Why do we use Apache Flume?

Apache Flume is a A distributed, reliable, and available system for efficiently collecting, aggregating, and moving large amounts of log data from many disparate sources to a centralized data store. The use of Apache Flume is not limited to log data aggregation.

Where can we use Flume?

Different use cases for Apache Flume

• Apache Flume can be used when we want to collect data from various sources and store them on Hadoop system.
• Whenever we need to process large volume and high speed data into Hadoop system, we can use Flume.

What is important to a versatile Flume agent?

In a multi-agent flow, the sink of the previous agent (eg: Machine1) and the source of the current hop (eg: Machine2) Needs to be of type avro, the sink points to the source’s hostname or IP address and port machine. Therefore, the Avro RPC mechanism acts as a bridge between proxies in a multi-hop flow.

How do I know if Flume is installed?

Check if Apache-Flume is installed correctly cd to your flume/bin directory, then Enter the command flume-ng version . Use the ls command to make sure you are in the correct directory. If you are in the correct directory, flume-ng will be in the output.

Does Flume provide 100% reliability for data flow?

A: Flume generally provides End-to-end reliability of streams. Also, by default, it uses a transactional approach to dataflow. In addition, Source and sink packages provide channels in transactional repositories. …so it provides 100% reliability for the data flow.

What are the correct steps after installing Flume and the Flume agent?

After installing Flume, we need Configure using configuration files This is a Java properties file with key-value pairs. We need to pass the value to the key in the file. Name the component of the current proxy. Describe/configure source.

What is a Flume agent?

Flume agent is A (JVM) process that hosts components through which events flow from an external source to the next destination (hop). . . a channel is a passive store that holds an event until it is consumed by a Flume sink.

Responsible for sending events to the channel it is connected to?

sink agent Flume agent is a kind of JVM process, and it can be said that it is an important part of Flume deployment. Therefore, each Flume agent has three components Source Channel Sink Source It is responsible for sending events to the channel it is connected to it has no control over how the data is stored in the channel.

Can NiFi replace Kafka?

NiFi as a consumer

Some projects have developed a pipeline to transfer data to Kafka, and over time, they have introduced NiFi into their processes. under these circumstances, NiFi can replace Kafka consumers and handle all the logic. For example, it can fetch data from Kafka to move it forward.