Konstantin Shvachko created HDFS-14502:
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Summary: keepResults option in NNThroughputBenchmark should call
saveNamespace()
Key: HDFS-14502
URL: https://issues.apache.org/jira/browse/HDFS-14502
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 2.7.6
Reporter: Konstantin Shvachko
Assignee: Konstantin Shvachko
{{-keepResults}} option is usually used to make it possible to rerun
NNThroughputBenchmark with existing namespace state. E.g. first generate files
with {{create}} command and then run {{fileStatus}} command on generated files.
NNThroughputBenchmark should call {{saveNamespace()}} when {{-keepResults}}
option is specified. Otherwise NN startup takes a while since it needs to
digest large edits file starting from the empty image.
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