@InterfaceAudience.Public @InterfaceStability.Evolving public final class StreamStatisticNames extends Object
When adding new common statistic name constants, please make them unique. By convention, they are implicitly unique:
| Modifier and Type | Field and Description | 
|---|---|
| static String | BLOCKS_ALLOCATEDTotal number of Data blocks allocated by an outputStream. | 
| static String | BLOCKS_RELEASEDTotal number of Data blocks released by an outputStream. | 
| static String | BYTES_READ_BUFFERNumber of bytes read from the buffer. | 
| static String | BYTES_TO_UPLOADNumber of bytes to upload from an OutputStream. | 
| static String | BYTES_UPLOAD_FAILEDNumber of bytes failed to upload to the object store. | 
| static String | BYTES_UPLOAD_SUCCESSFULNumber of bytes uploaded successfully to the object store. | 
| static String | QUEUE_SHRUNK_OPSNumber of task queue shrunk operations. | 
| static String | READ_AHEAD_BYTES_READTotal number of bytes read from readAhead. | 
| static String | REMOTE_BYTES_READTotal number of bytes read from remote operations. | 
| static String | REMOTE_READ_OPTotal number of remote read operations performed. | 
| static String | SEEK_IN_BUFFERNumber of seeks in buffer. | 
| static String | STREAM_READ_ABORTEDCount of times the TCP stream was aborted. | 
| static String | STREAM_READ_BYTESBytes read from an input stream in read()/readVectored() calls. | 
| static String | STREAM_READ_BYTES_DISCARDED_ABORTCount of bytes discarded by aborting an input stream . | 
| static String | STREAM_READ_BYTES_DISCARDED_CLOSECount of bytes read and discarded when closing an input stream. | 
| static String | STREAM_READ_CLOSE_OPERATIONSTotal count of times an attempt to close an input stream was made. | 
| static String | STREAM_READ_CLOSEDCount of times the TCP stream was closed. | 
| static String | STREAM_READ_EXCEPTIONSCount of exceptions raised during input stream reads. | 
| static String | STREAM_READ_FULLY_OPERATIONSCount of readFully() operations in an input stream. | 
| static String | STREAM_READ_OPENEDTotal count of times an input stream to was opened. | 
| static String | STREAM_READ_OPERATIONSCount of read() operations in an input stream. | 
| static String | STREAM_READ_OPERATIONS_INCOMPLETECount of incomplete read() operations in an input stream,
 that is, when the bytes returned were less than that requested. | 
| static String | STREAM_READ_REMOTE_STREAM_ABORTEDcount/duration of aborting a remote stream during stream IO
 IO. | 
| static String | STREAM_READ_REMOTE_STREAM_DRAINEDcount/duration of closing a remote stream,
 possibly including draining the stream to recycle
 the HTTP connection. | 
| static String | STREAM_READ_SEEK_BACKWARD_OPERATIONSCount of executed seek operations which went backwards in a stream. | 
| static String | STREAM_READ_SEEK_BYTES_BACKWARDSCount of bytes moved backwards during seek operations
 in an input stream. | 
| static String | STREAM_READ_SEEK_BYTES_DISCARDEDCount of bytes read and discarded during seek() in an input stream. | 
| static String | STREAM_READ_SEEK_BYTES_SKIPPEDCount of bytes skipped during forward seek operations. | 
| static String | STREAM_READ_SEEK_FORWARD_OPERATIONSCount of executed seek operations which went forward in
 an input stream. | 
| static String | STREAM_READ_SEEK_OPERATIONSCount of seek operations in an input stream. | 
| static String | STREAM_READ_SEEK_POLICY_CHANGEDCount of times the seek policy was dynamically changed
 in an input stream. | 
| static String | STREAM_READ_SKIP_BYTESCount bytes skipped in  InputStream.skip()calls. | 
| static String | STREAM_READ_SKIP_OPERATIONSCount of  InputStream.skip()calls. | 
| static String | STREAM_READ_TOTAL_BYTESTotal count of bytes read from an input stream. | 
| static String | STREAM_READ_UNBUFFEREDCount of calls of  CanUnbuffer.unbuffer(). | 
| static String | STREAM_READ_VECTORED_COMBINED_RANGESCount of combined file ranges during readVectored() operation. | 
| static String | STREAM_READ_VECTORED_INCOMING_RANGESCount of incoming file ranges during readVectored() operation. | 
| static String | STREAM_READ_VECTORED_OPERATIONSCount of readVectored() operations in an input stream. | 
| static String | STREAM_READ_VECTORED_READ_BYTES_DISCARDEDCount of bytes discarded during readVectored() operation
 in an input stream. | 
| static String | STREAM_READ_VERSION_MISMATCHESCount of version mismatches encountered while reading an input stream. | 
| static String | STREAM_WRITE_BLOCK_UPLOADSCount of block/partition uploads complete. | 
| static String | STREAM_WRITE_BLOCK_UPLOADS_ABORTEDCount of number of block uploads aborted. | 
| static String | STREAM_WRITE_BLOCK_UPLOADS_ACTIVECount of block/partition uploads active. | 
| static String | STREAM_WRITE_BLOCK_UPLOADS_BYTES_PENDINGGauge of data queued to be written. | 
| static String | STREAM_WRITE_BLOCK_UPLOADS_COMMITTEDCount of number of block uploads committed. | 
| static String | STREAM_WRITE_BLOCK_UPLOADS_PENDINGGauge of block/partitions uploads queued to be written. | 
| static String | STREAM_WRITE_BYTES"Count of bytes written to output stream including all not yet uploaded. | 
| static String | STREAM_WRITE_EXCEPTIONS"Count of stream write failures reported. | 
| static String | STREAM_WRITE_EXCEPTIONS_COMPLETING_UPLOADSCount of failures when finalizing a multipart upload:
 "stream_write_exceptions_completing_upload". | 
| static String | STREAM_WRITE_QUEUE_DURATIONTotal queue duration of all block uploads. | 
| static String | STREAM_WRITE_TOTAL_DATA | 
| static String | STREAM_WRITE_TOTAL_TIMECount of total time taken for uploads to complete. | 
| static String | TIME_SPENT_ON_PUT_REQUESTTotal time spent on completing a PUT request. | 
| static String | TIME_SPENT_ON_TASK_WAITTotal time spent on waiting for a task to complete. | 
| static String | WRITE_CURRENT_BUFFER_OPERATIONSNumber of times current buffer is written to the service. | 
public static final String STREAM_READ_ABORTED
public static final String STREAM_READ_BYTES
public static final String STREAM_READ_BYTES_DISCARDED_ABORT
public static final String STREAM_READ_BYTES_DISCARDED_CLOSE
public static final String STREAM_READ_CLOSED
public static final String STREAM_READ_CLOSE_OPERATIONS
public static final String STREAM_READ_OPENED
public static final String STREAM_READ_EXCEPTIONS
public static final String STREAM_READ_FULLY_OPERATIONS
public static final String STREAM_READ_OPERATIONS
public static final String STREAM_READ_VECTORED_OPERATIONS
public static final String STREAM_READ_VECTORED_READ_BYTES_DISCARDED
public static final String STREAM_READ_VECTORED_INCOMING_RANGES
public static final String STREAM_READ_VECTORED_COMBINED_RANGES
public static final String STREAM_READ_OPERATIONS_INCOMPLETE
public static final String STREAM_READ_REMOTE_STREAM_ABORTED
public static final String STREAM_READ_REMOTE_STREAM_DRAINED
public static final String STREAM_READ_VERSION_MISMATCHES
public static final String STREAM_READ_SEEK_BACKWARD_OPERATIONS
public static final String STREAM_READ_SEEK_BYTES_BACKWARDS
public static final String STREAM_READ_SEEK_BYTES_DISCARDED
public static final String STREAM_READ_SEEK_BYTES_SKIPPED
public static final String STREAM_READ_SEEK_FORWARD_OPERATIONS
public static final String STREAM_READ_SEEK_POLICY_CHANGED
public static final String STREAM_READ_SEEK_OPERATIONS
public static final String STREAM_READ_SKIP_OPERATIONS
InputStream.skip() calls.
 Value: "stream_read_skip_operations".public static final String STREAM_READ_SKIP_BYTES
InputStream.skip() calls.
 Value: "stream_read_skip_bytes".public static final String STREAM_READ_TOTAL_BYTES
public static final String STREAM_READ_UNBUFFERED
CanUnbuffer.unbuffer().
 Value: "stream_read_unbuffered".public static final String STREAM_WRITE_EXCEPTIONS
public static final String STREAM_WRITE_EXCEPTIONS_COMPLETING_UPLOADS
public static final String STREAM_WRITE_BLOCK_UPLOADS
public static final String STREAM_WRITE_BLOCK_UPLOADS_ABORTED
public static final String STREAM_WRITE_BLOCK_UPLOADS_ACTIVE
public static final String STREAM_WRITE_BLOCK_UPLOADS_BYTES_PENDING
public static final String STREAM_WRITE_BLOCK_UPLOADS_COMMITTED
public static final String STREAM_WRITE_BLOCK_UPLOADS_PENDING
public static final String STREAM_WRITE_BYTES
public static final String STREAM_WRITE_TOTAL_TIME
public static final String STREAM_WRITE_QUEUE_DURATION
public static final String STREAM_WRITE_TOTAL_DATA
public static final String BYTES_TO_UPLOAD
public static final String BYTES_UPLOAD_SUCCESSFUL
public static final String BYTES_UPLOAD_FAILED
public static final String TIME_SPENT_ON_TASK_WAIT
public static final String QUEUE_SHRUNK_OPS
public static final String WRITE_CURRENT_BUFFER_OPERATIONS
public static final String TIME_SPENT_ON_PUT_REQUEST
public static final String SEEK_IN_BUFFER
public static final String BYTES_READ_BUFFER
public static final String REMOTE_READ_OP
public static final String READ_AHEAD_BYTES_READ
public static final String REMOTE_BYTES_READ
public static final String BLOCKS_ALLOCATED
public static final String BLOCKS_RELEASED
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