HADOOP-17657: implement StreamCapabilities in SequenceFile.Writer and fall back to flush, if hflush is not supported#2949

Merged

jojochuang merged 10 commits intoapache:trunkfrom

kishendas:HADOOP-17567

May 4, 2021

Commits on Apr 23, 2021

implement StreamCapabilities and fall back to flush, if hflush is not supported
Kishen Das
committed

Commits on Apr 24, 2021

Implement Flushable and let clients of SequenceFile.Writer decide whether they want to use hflush or flush
Kishen Das
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Check for null
Kishen Das
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Commits on Apr 26, 2021

add unit test
Kishen Das
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Commits on Apr 27, 2021

Fix checkstyle error
Kishen Das
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Commits on Apr 28, 2021

Address Steve feedback
Kishen Das
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remove unused imports
Kishen Das
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Commits on Apr 29, 2021

Fix the unit test and checkstyle errors
Kishen Das
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Fix unit test
Kishen Das
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retrigger tests
Kishen Das
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