flume | WE HAVE MOVED to Apache Incubator. https://cwiki.apache.org/FLUME/ . Flume is a distributed, relia

 by   cloudera Java Version: cdh4.3.1-release License: Apache-2.0

kandi X-RAY | flume Summary

kandi X-RAY | flume Summary

flume is a Java library typically used in Big Data, Kafka applications. flume has no bugs, it has build file available, it has a Permissive License and it has high support. However flume has 3 vulnerabilities. You can download it from GitHub.

h1. Welcome to Flume!. NOTE: We have moved to the Apache Incubator. Flume is a distributed, reliable, and available service for efficiently collecting, aggregating, and moving large amounts of log data. It has a simple and flexible architecture based on streaming data flows. It is robust and fault tolerant with tunable reliability mechanisms and many failover and recovery mechanisms. The system is centrally managed and allows for intelligent dynamic management. It uses a simple extensible data model that allows for online analytic application. Flume is open-sourced under the Apache Software Foundation License v2.0. Bug and Issue tracker.

            kandi-support Support

              flume has a highly active ecosystem.
              It has 941 star(s) with 216 fork(s). There are 88 watchers for this library.
              It had no major release in the last 6 months.
              flume has no issues reported. There are 7 open pull requests and 0 closed requests.
              It has a negative sentiment in the developer community.
              The latest version of flume is cdh4.3.1-release

            kandi-Quality Quality

              flume has 0 bugs and 0 code smells.

            kandi-Security Security

              flume has 3 vulnerability issues reported (3 critical, 0 high, 0 medium, 0 low).
              flume code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              flume is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              flume releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed flume and discovered the below as its top functions. This is intended to give you an instant insight into flume implemented functionality, and help decide if they suit your requirements.
            • Attempt to read the next chunk
            • Returns whether or not the file exists or not
            • Extract lines from a source buffer
            • Flushes any buffered files
            • The main entry point
            • Creates a new instance of ZooKeeper
            • Finds the index of the hostname and ip
            • Start the server
            • Returns next event
            • Extract lines from the buffer
            • Runs the program
            • Shutdown the Flume
            • Bulk update a set of FlumeConfigs
            • Creates a new SFS sink
            • Append the checksum group
            • Appends a metric to the report
            • Returns the next event
            • Flushes any buffered events
            • Main entry point
            • Append date
            • Checks if there is a benchmark
            • Opens the sink
            • Appends the primary
            • Extracts events from the given byte buffer and adds them to the given queue
            • Implement append method
            • Extract an event from a string
            Get all kandi verified functions for this library.

            flume Key Features

            No Key Features are available at this moment for flume.

            flume Examples and Code Snippets

            No Code Snippets are available at this moment for flume.

            Community Discussions


            Transform CSV into Parquet using Apache Flume?
            Asked 2022-Feb-24 at 14:40

            I have a question, is it possible to execute ETL for data using flume. To be more specific I have flume configured on spoolDir which contains CSV files and I want to convert those files into Parquet files before storing them into Hadoop. Is it possible ?

            If it's not possible would you recommend transforming them before storing in Hadoop or transform them using spark on Hadoop?



            Answered 2022-Feb-24 at 14:40

            I'd probably suggest using nifi to move the files around. Here's a specific tutorial on how to do that with Parquet. I feel nifi was the replacement for Apache Flume.

            Flume partial answers:(Not Parquet) If you are flexible on format you can use an avro sink. You can use a hive sink and it will create a table in ORC format.(You can see if it also allows parquet in the definition but I have heard that ORC is the only supported format.)

            You could likely use some simple script to use hive to move the data from the Orc table to a Parquet table. (Converting the files into the parquet files you asked for.)

            Source https://stackoverflow.com/questions/71249371


            Map-only job is not running. Stuck at Running job
            Asked 2022-Feb-08 at 09:38

            I have streamed data through Apache Flume and the data has been stored in a temp file in my hdfs folder at: user/*****/tweets/FlumeData.1643626732852.tmp

            Now I am trying to run a mapper only job which will be pre-processing the job by way of url removal, # tag removal, @ removal, stop word removal etc.

            However, the mapper only job is stopped at Running job.

            Mapper job code:



            Answered 2022-Feb-08 at 09:38

            Solved my problem by changing the mapreduce.framework.name from yarn to local in mapred-site.xml.

            The problem seemed to be happening due to resource crunch in the machine.

            Also after changing the properties, restart Hadoop services once again.

            Source https://stackoverflow.com/questions/70928711


            Flume with Kafka Source not writing events using file_roll
            Asked 2021-Dec-23 at 09:13

            so as the header states I have a flume agent with kafka source and it writes to an HDFS location, compressed as avro and I want to multiplex it to write the events in a log file as well. I'm running my flume in a pod inside AKS.

            So this is what I have tried so far, this part of my flume configuration:



            Answered 2021-Dec-23 at 09:13

            What worked is changing memory channel with jdbc channel.

            Replace this

            Source https://stackoverflow.com/questions/70447486


            Error in moving log files from local file system to HDFS via Apache Flume
            Asked 2021-Dec-09 at 12:57

            I have log files in my local file system, that are required to be transferred to HDFS via Apache Flume. I am having the following configuration file in the home directory saved as net.conf



            Answered 2021-Dec-09 at 08:36

            The following exception implies that the flume agent doesn't have sufficient memory (Heap to be specific) to do the task.

            Increase the flume agent's java memory in flume_env.sh file or specify memory at the time of deploying using flume-ng agent -n NetcatAgent -f net.conf -Xmx2048m (Note: This sets the flume heap size to 2GB = 2048MB)

            You can specify -D and -X java options from the command line.

            Inside the flume directory, go to conf dir, there should be either flume-env.sh or flume-env.sh.template file, if there's .template file copy the file using

            Source https://stackoverflow.com/questions/70247054


            Escape Sequences not populating hdfs path and file prefix
            Asked 2021-Dec-06 at 03:35

            In my flume flow, I want to have a custom dynamic hdfs path but no data is being populated to the interceptors.

            Example data: 188 17 2016-06-01 00:31:10 6200.041736 0




            Answered 2021-Dec-06 at 03:35

            The look-aheads and look-behinds for year and day will only match the tab character. They will not match multiple whitespaces. You'd be better off using \\s.

            Also Flume requires two backslashes for regex symbols, \\t rather than \t.

            Alternatively, you could use one regex to grab the whole date and with multiple capture groups assign them to different serializers. For example, (\\d{4})-(\\d{2})-(\\d{2})

            The Flume User Guide has a good example:

            If the Flume event body contained 1:2:3.4foobar5 and the following configuration was used

            Source https://stackoverflow.com/questions/70222113


            Connect system which includes OPC UA IoT Agent, Orion Context Broker. Cygnus and Historic data with Postgres
            Asked 2021-Oct-25 at 12:39

            I am trying to set up a system to save historic data with the flow like this: Prosys OPC-UA Server Simulation -> OPC-UA FIWARE IoT Agent -> Orion Context Broker -> FIWARE Cygnus Connector -> PostgreSQL database.

            Here is the document I used to compose the docker-compose file:


            OPC-UA IoT Agent

            Here is the docker-compose and .env file I used




            Answered 2021-Sep-01 at 10:31

            You have a complex scenario here, composed of an end-to-end chain of 5 components:

            • Prosys OPC-UA Server Simulation
            • OPC-UA FIWARE IoT Agent
            • Orion Context Broker
            • FIWARE Cygnus Connector
            • PostgreSQL database

            My recomendation here would be to check every step in the chain (looking in logs, etc.) to ensure everything is correct before of checking the next step.

            Source https://stackoverflow.com/questions/69002930


            How to Pass Null value while serializing Avro message
            Asked 2021-Sep-06 at 12:36

            I have field as defined as Map map; , I taking request from a client and sending this to Kafka Topic having schema defined in schema registry.

            In schema I have defined this as:



            Answered 2021-Sep-06 at 12:36

            That schema says map values are not unions, so they must be non-null strings. The map itself can be null, though

            I'm not if this is valid in IDL, but you can try, assuming you didn't want the map to be nullable

            Source https://stackoverflow.com/questions/69072710


            How to add an array object to nested object in Django?
            Asked 2021-Apr-25 at 10:43

            I need to add an array of objects to an another object whose structure has been shown below.

            Here is current response from Album:



            Answered 2021-Apr-25 at 10:43

            You can do something like this:

            Source https://stackoverflow.com/questions/67244608


            Same Application Behaving Differently in Two Machine
            Asked 2021-Apr-20 at 21:51

            I am getting this exception while launching Apache Flume :



            Answered 2021-Apr-20 at 21:51

            Your deployment on Apache Flume is using a version of Jetty older than 9.4.29 (where Attributes.unwrap() was first introduced).

            Double check the startup logs of the Jetty server, it will announce the version it thinks it is running.


            Source https://stackoverflow.com/questions/67185760


            Can Kafka message consumed by different consumers?
            Asked 2021-Mar-12 at 01:46

            I am new to Kafka. I have produced a kafka message named foo by kafkaSink ,a class in Flume.When I want to consume the messages,many questions come unclear to me: 1.I have tried to use kafka-console-consumer to consume message foo,and it succeeded.Can I consume message foo again with another consumer process somewhere else? 2.To the opposite,I don't want to consume message foo again, so when I try to consume with another consumer,I should obtain nothing.How can I achieve this? 3.What if there are two messages foo and bar.Can I specify consumers precisely?(For example,I want process A consumes message foo and process B consumes message bar.To go further ,can O specify a range of message offsets? Does it have something to do with consumer group?



            Answered 2021-Mar-12 at 01:46
            1. Can I consume message foo again with another consumer process somewhere else?

            Yes. It can be consumed as many times as we want, either by using a new consumer group or by resetting the offset of the existing consumer group.

            2.To the opposite,I don't want to consume message foo again, so when I try to consume with another consumer,I should obtain nothing.How can I achieve this?

            It's all tied to a consumer group name, which typically tied to one application that is needing these messages. we need to keep the same consumer group name, and typically commited offset is retained for a week(can be changed), so, we can run the app n no of times from n different places by keeping same consumer group name, we will not consume it again, unless we reset the offset.

            3.What if there are two messages foo and bar.Can I specify consumers precisely?(For example,I want process A consumes message foo and process B consumes message bar.To go further ,can O specify a range of message offsets? Does it have something to do with consumer group?

            We can always consume particular message of a given partition and offset by positioning the consumer group at that offset. Its called seeking an offset, rather than seeking to earliest or latest.

            Source https://stackoverflow.com/questions/66591903

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install flume

            You can download it from GitHub.
            You can use flume like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the flume component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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