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https://issues.apache.org/jira/browse/HADOOP-2000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12549273
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Konstantin Shvachko commented on HADOOP-2000:
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A few minor comments:
- Redundant imports:
{code}
import java.text.DateFormat;
import org.apache.hadoop.io.UTF8;
import org.apache.hadoop.mapred.Reducer;
{code}
- Usage should specify mandatory options, like -operation, and optional ones.
- I get ArrayIndexOutOfBoundsException if I run any of the
{code}
NNBench -operation
NNBench -bytesToWrite
{code}
> Re-write NNBench to use MapReduce
> ---------------------------------
>
> Key: HADOOP-2000
> URL: https://issues.apache.org/jira/browse/HADOOP-2000
> Project: Hadoop
> Issue Type: Test
> Components: test
> Affects Versions: 0.15.0
> Reporter: Mukund Madhugiri
> Assignee: Mukund Madhugiri
> Fix For: 0.16.0
>
> Attachments: HADOOP-2000.patch, HADOOP-2000.patch, HADOOP-2000.patch,
> HADOOP-2000.patch, HADOOP-2000.patch, HADOOP-2000.patch
>
>
> The proposal is to re-write the NNBench benchmark/test to measure Namenode
> operations using MapReduce. Two buckets of measurements will be done:
> 1. Transactions per second
> 2. Average latency
> for these operations
> - Create and Close file
> - Open file
> - Rename file
> - Delete file
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