org.apache.cassandra.repair

Interface TableRepairManager

All Known Implementing Classes:

CassandraTableRepairManager

public interface TableRepairManager

Table level hook for repair

Method Summary

Modifier and Type	Method and Description
ValidationPartitionIterator	getValidationIterator(java.util.Collection<Range<Token>> ranges, java.util.UUID parentId, java.util.UUID sessionID, boolean isIncremental, int nowInSec) Return a validation iterator for the given parameters.
void	incrementalSessionCompleted(java.util.UUID sessionID) Called when the given incremental session has completed.
void	snapshot(java.lang.String name, java.util.Collection<Range<Token>> ranges, boolean force) For snapshot repairs.
java.util.concurrent.Future<?>	submitValidation(java.util.concurrent.Callable<java.lang.Object> validation) Begin execution of the given validation callable.

Method Detail

getValidationIterator

ValidationPartitionIterator getValidationIterator(java.util.Collection<Range<Token>> ranges,
                                                  java.util.UUID parentId,
                                                  java.util.UUID sessionID,
                                                  boolean isIncremental,
                                                  int nowInSec)
                                           throws java.io.IOException

Return a validation iterator for the given parameters. If isIncremental is true, the iterator must only include data previously isolated for repair with the given parentId. nowInSec should determine whether tombstones shouldn be purged or not.

Throws:

java.io.IOException

submitValidation

java.util.concurrent.Future<?> submitValidation(java.util.concurrent.Callable<java.lang.Object> validation)

Begin execution of the given validation callable. Which thread pool a validation should run in is an implementation detail.

incrementalSessionCompleted

void incrementalSessionCompleted(java.util.UUID sessionID)

Called when the given incremental session has completed. Because of race and failure conditions, implementors should not rely only on receiving calls from this method to determine when a session has ended. Implementors can determine if a session has finished by calling ActiveRepairService.instance.consistent.local.isSessionInProgress. Just because a session has completed doesn't mean it's completed succesfully. So implementors need to consult the repair service at ActiveRepairService.instance.consistent.local.getFinalSessionRepairedAt to get the repairedAt time. If the repairedAt time is zero, the data for the given session should be demoted back to unrepaired. Otherwise, it should be promoted to repaired with the given repaired time.

snapshot

void snapshot(java.lang.String name,
              java.util.Collection<Range<Token>> ranges,
              boolean force)

For snapshot repairs. A snapshot of the current data for the given ranges should be taken with the given name. If force is true, a snapshot should be taken even if one already exists with that name.