https://github.com/elek/hadoop-btrace

BTrace scripts for investigate internals of Hadoop.
https://github.com/elek/hadoop-btrace

Last synced: about 1 year ago
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BTrace scripts for investigate internals of Hadoop.

• Host: GitHub
• URL: https://github.com/elek/hadoop-btrace
• Owner: elek
• License: apache-2.0
• Created: 2017-01-15T23:12:31.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2017-02-26T21:31:21.000Z (over 9 years ago)
• Last Synced: 2025-02-12T10:55:26.644Z (over 1 year ago)
• Language: Java
• Size: 10.7 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# BTrace scripts for investigate internals of Hadoop.

_Work in progress_

# Usage

## Compile the current project

```

mvn package

```

## Download btrace

Get the latest release from here: https://github.com/btraceio/btrace/releases

```

mkdir btrace

cd btrace

wget https://github.com/btraceio/btrace/releases/download/v1.3.9/btrace-bin-1.3.9.zip

unzip btrace*.zip

```

## Attach to an existing process

Find the process id of your java app:

```

jps -l

18 org.apache.hadoop.hdfs.server.namenode.NameNode

114 sun.tools.jps.Jps

```

Join to the process:

```

./btrace -u 18 target/classes/META-INF/btrace/RpcCalls.class

```