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HDFS-12622. Fix enumerate in HDFSErasureCoding.md. Contributed by Yiqun Lin. 

(cherry picked from commit dc63a6a52b)
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Akira Ajisaka 2017-10-11 18:09:53 +09:00 committed by Andrew Wang
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commit 143dbf8497
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hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSErasureCoding.md
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@ -140,6 +140,7 @@ Deployment
### Enable Intel ISA-L ### Enable Intel ISA-L
HDFS native implementation of default RS codec leverages Intel ISA-L library to improve the encoding and decoding calculation. To enable and use Intel ISA-L, there are three steps. HDFS native implementation of default RS codec leverages Intel ISA-L library to improve the encoding and decoding calculation. To enable and use Intel ISA-L, there are three steps.
1. Build ISA-L library. Please refer to the official site "https://github.com/01org/isa-l/" for detail information. 1. Build ISA-L library. Please refer to the official site "https://github.com/01org/isa-l/" for detail information.
2. Build Hadoop with ISA-L support. Please refer to "Intel ISA-L build options" section in "Build instructions for Hadoop" in (BUILDING.txt) in the source code. 2. Build Hadoop with ISA-L support. Please refer to "Intel ISA-L build options" section in "Build instructions for Hadoop" in (BUILDING.txt) in the source code.
3. Use `-Dbundle.isal` to copy the contents of the `isal.lib` directory into the final tar file. Deploy Hadoop with the tar file. Make sure ISA-L is available on HDFS clients and DataNodes. 3. Use `-Dbundle.isal` to copy the contents of the `isal.lib` directory into the final tar file. Deploy Hadoop with the tar file. Make sure ISA-L is available on HDFS clients and DataNodes.