James Clampffer created HDFS-8790:
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Summary: Add Filesystem level stress tests
Key: HDFS-8790
URL: https://issues.apache.org/jira/browse/HDFS-8790
Project: Hadoop HDFS
Issue Type: Sub-task
Components: hdfs-client
Reporter: James Clampffer
Assignee: James Clampffer
I propose adding stress tests on libhdfs(3) compatibility layer was well as the
async calls. These can be also used for basic performance metrics and inputs
to profiling tools to see improvements over time.
I'd like to make these tests into a seperate executable, or set of them, so
that they can be used for longer running tests on dedicated clusters that may
already exist. Each should provide a simple command line interface for
scripted or manual use.
Basic tests would be:
looped open-read-close
sequential scans
small random reads
All tests will be parameterized for number of threads, read size, and upper and
lower offset bounds for a specified file. This will make it much easier to
detect and reproduce threading issues and resource leaks as well as provide a
simple executable (or set of executables) that can be run with valgrind to gain
a high confidence that the code is operating correctly.
I'd appreciate suggestions for any other simple stress tests.
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