org.apache.hadoop.fs.s3a.s3guard

Interface MetastoreInstrumentation

All Known Implementing Classes:

MetastoreInstrumentationImpl

public interface MetastoreInstrumentation

Instrumentation exported to S3Guard.

Method Summary

Modifier and Type	Method and Description
void	directoryMarkedAuthoritative() A directory has been tagged as authoritative.
void	entryAdded(long durationNanos) An entry was added.
void	initialized() Initialized event.
void	recordsDeleted(int count) Records have been deleted.
void	recordsRead(int count) Records have been read.
void	recordsWritten(int count) records have been written (including tombstones).
void	retrying() S3Guard is retrying after a (retryable) failure.
void	storeClosed() Store has been closed.
void	throttled() Throttled request.

Method Detail

initialized

void initialized()

Initialized event.

storeClosed

void storeClosed()

Store has been closed.

throttled

void throttled()

Throttled request.

retrying

void retrying()

S3Guard is retrying after a (retryable) failure.

recordsDeleted

void recordsDeleted(int count)

Records have been deleted.

Parameters:

count - the number of records deleted.

recordsRead

void recordsRead(int count)

Records have been read.

Parameters:

count - the number of records read

recordsWritten

void recordsWritten(int count)

records have been written (including tombstones).

Parameters:

count - number of records written.

directoryMarkedAuthoritative

void directoryMarkedAuthoritative()

A directory has been tagged as authoritative.

entryAdded

void entryAdded(long durationNanos)

An entry was added.

Parameters:

durationNanos - time to add