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HDFS-10926. Update staled configuration properties related to erasure coding. Contributed by Sammi Chen

This commit is contained in:
Kai Zheng 2016-10-28 12:37:30 +06:00
parent 57187fdb93
commit 8fa2195697
1 changed files with 4 additions and 3 deletions
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hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSErasureCoding.md
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@ -106,9 +106,10 @@ Deployment
Erasure coding background recovery work on the DataNodes can also be tuned via the following configuration parameters: Erasure coding background recovery work on the DataNodes can also be tuned via the following configuration parameters:
1. `dfs.datanode.stripedread.timeout.millis` - Timeout for striped reads. Default value is 5000 ms. 1. `dfs.datanode.ec.reconstruction.stripedread.timeout.millis` - Timeout for striped reads. Default value is 5000 ms.
1. `dfs.datanode.stripedread.threads` - Number of concurrent reader threads. Default value is 20 threads. 1. `dfs.datanode.ec.reconstruction.stripedread.threads` - Number of concurrent reader threads. Default value is 20 threads.
1. `dfs.datanode.stripedread.buffer.size` - Buffer size for reader service. Default value is 256KB. 1. `dfs.datanode.ec.reconstruction.stripedread.buffer.size` - Buffer size for reader service. Default value is 64KB.
1. `dfs.datanode.ec.reconstruction.stripedblock.threads.size` - Number of threads used by the Datanode for background reconstruction work. Default value is 8 threads.
### Enable Intel ISA-L ### Enable Intel ISA-L