org.apache.hadoop.hbase.procedure2.store.wal

Class WALProcedureTree

java.lang.Object

org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureTree

@InterfaceAudience.Private
public final class WALProcedureTree
extends Object

Used to build the tree for procedures.

We will group the procedures with the root procedure, and then validate each group. For each group of procedures(with the same root procedure), we will collect all the stack ids, if the max stack id is n, then all the stack ids should be from 0 to n, non-repetition and non-omission. If not, we will consider all the procedures in this group as corrupted. Please see the code in checkReady(Entry, Map) method.

For the procedures not in any group, i.e, can not find the root procedure for these procedures, we will also consider them as corrupted. Please see the code in checkOrphan(Map) method.

Method Summary

Modifier and Type	Method and Description
static WALProcedureTree	build(Collection<ProcedureProtos.Procedure> procedures)
ProcedureStore.ProcedureIterator	getCorruptedProcs()
ProcedureStore.ProcedureIterator	getValidProcs()

Methods inherited from class java.lang.Object

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

Method Detail

getValidProcs

public ProcedureStore.ProcedureIterator getValidProcs()

getCorruptedProcs

public ProcedureStore.ProcedureIterator getCorruptedProcs()

build

public static WALProcedureTree build(Collection<ProcedureProtos.Procedure> procedures)