org.apache.hadoop.hbase.procedure2

类 ProcedureUtil

java.lang.Object

org.apache.hadoop.hbase.procedure2.ProcedureUtil

@InterfaceAudience.Private
public final class ProcedureUtil
extends Object

Helper to convert to/from ProcedureProtos

方法概要

限定符和类型	方法和说明
static Procedure<?>	convertToProcedure(org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.Procedure proto) Helper to convert the protobuf procedure.
static org.apache.hadoop.hbase.shaded.protobuf.generated.LockServiceProtos.LockedResource	convertToProtoLockedResource(LockedResource lockedResource)
static org.apache.hadoop.hbase.shaded.protobuf.generated.LockServiceProtos.LockType	convertToProtoLockType(LockType lockType)
static org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.Procedure	convertToProtoProcedure(Procedure<?> proc) Helper to convert the procedure to protobuf.
static org.apache.hadoop.hbase.shaded.protobuf.generated.LockServiceProtos.LockedResourceType	convertToProtoResourceType(LockedResourceType resourceType)
static long	getBackoffTimeMs(int attempts) Get an exponential backoff time, in milliseconds.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

convertToProtoProcedure

public static org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.Procedure convertToProtoProcedure(Procedure<?> proc)
                                                                                                           throws IOException

Helper to convert the procedure to protobuf.

Used by ProcedureStore implementations.

抛出:

IOException

convertToProcedure

public static Procedure<?> convertToProcedure(org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.Procedure proto)
                                       throws IOException

Helper to convert the protobuf procedure.

Used by ProcedureStore implementations.

TODO: OPTIMIZATION: some of the field never change during the execution (e.g. className, procId, parentId, ...). We can split in 'data' and 'state', and the store may take advantage of it by storing the data only on insert().

抛出:

IOException

convertToProtoResourceType

public static org.apache.hadoop.hbase.shaded.protobuf.generated.LockServiceProtos.LockedResourceType convertToProtoResourceType(LockedResourceType resourceType)

convertToProtoLockType

public static org.apache.hadoop.hbase.shaded.protobuf.generated.LockServiceProtos.LockType convertToProtoLockType(LockType lockType)

convertToProtoLockedResource

public static org.apache.hadoop.hbase.shaded.protobuf.generated.LockServiceProtos.LockedResource convertToProtoLockedResource(LockedResource lockedResource)
                                                                                                                       throws IOException

抛出:

IOException

getBackoffTimeMs

public static long getBackoffTimeMs(int attempts)

Get an exponential backoff time, in milliseconds. The base unit is 1 second, and the max backoff time is 10 minutes. This is the general backoff policy for most procedure implementation.