Hadoop HDFS
  1. Hadoop HDFS

performance

Summary

Description

Tag for performance related improvements/optimizations

Issues: Unresolved

Key Summary Due Date
Improvement HDFS-8562 HDFS Performance is impacted by FileInputStream Finalizer
Improvement HDFS-918 Use single Selector and small thread pool to replace many instances of BlockSender for reads
Improvement HDFS-1148 Convert FSDataset to ReadWriteLock

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Issues: Updated recently

Key Summary Updated
Improvement HDFS-3051 A zero-copy ScatterGatherRead api from FSDataInputStream
Improvement HDFS-9768 Reuse objectMapper instance in HDFS to improve the performance
Bug HDFS-9724 Degraded performance in WebHDFS listing as it does not reuse ObjectMapper

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Versions: Unreleased

Name Release date
Unreleased Multiple interfaces (HDFS-3140)  
Unreleased 1.3.0  
Unreleased DisasterRecovery (HDFS-5442)  
Unreleased HADOOP-10388  
Unreleased HDFS-6994  
Unreleased HDFS-7285  
Unreleased 2.8.0  
Unreleased HDFS-7836  
Unreleased HDFS-7240  
Unreleased HDFS-7966  
Unreleased HDFS-8707  
Unreleased HDFS-8966  
Unreleased 2.7.3  
Unreleased HDFS-1312  
Unreleased 2.9.0  
Unreleased HDFS-9178  
Unreleased 2.6.5  
Unreleased 2.7.4  
Unreleased 3.0.0-alpha1  
Unreleased HDFS-9924  
Unreleased 3.0.0-beta1  
Unreleased 3.0.0-alpha2  
Unreleased 2.7.1, 2.6.4  

...and 18 more

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