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/* This file is part of VoltDB.
* Copyright (C) 2008-2018 VoltDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with VoltDB. If not, see .
*/
package org.voltdb.sysprocs;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.voltcore.logging.VoltLogger;
import org.voltcore.utils.CoreUtils;
import org.voltdb.DependencyPair;
import org.voltdb.ParameterSet;
import org.voltdb.SystemProcedureExecutionContext;
import org.voltdb.TheHashinator;
import org.voltdb.VoltSystemProcedure;
import org.voltdb.VoltTable;
import org.voltdb.VoltTable.ColumnInfo;
import org.voltdb.VoltType;
import org.voltdb.catalog.Table;
import org.voltdb.dtxn.DtxnConstants;
import org.voltdb.utils.CatalogUtil;
import org.voltdb.utils.VoltTableUtil;
import com.google_voltpatches.common.primitives.Longs;
/**
* A system procedure for validating that the rows at every partition hash correctly when hashed with the
* hash function stored at the MPI. Optionally you can supply your own hash function which is useful
* for test where you want to make provide an incorrect hash function to prove
* that it is actually doing the right thing.
*
*/
public class ValidatePartitioning extends VoltSystemProcedure {
private static final VoltLogger HOST_LOG = new VoltLogger("HOST");
private static final int DEP_validatePartitioning = (int)
SysProcFragmentId.PF_validatePartitioning | DtxnConstants.MULTIPARTITION_DEPENDENCY;
private static final int DEP_validatePartitioningResults = (int)
SysProcFragmentId.PF_validatePartitioningResults;
private static final int DEP_matchesHashinator = (int)
SysProcFragmentId.PF_matchesHashinator | DtxnConstants.MULTIPARTITION_DEPENDENCY;
private static final int DEP_matchesHashinatorResults = (int)
SysProcFragmentId.PF_matchesHashinatorResults;
@Override
public long[] getPlanFragmentIds() {
return new long[] {
SysProcFragmentId.PF_validatePartitioningResults,
SysProcFragmentId.PF_validatePartitioning,
SysProcFragmentId.PF_matchesHashinatorResults,
SysProcFragmentId.PF_matchesHashinator
};
}
@Override
public DependencyPair
executePlanFragment(Map> dependencies, long fragmentId, ParameterSet params,
final SystemProcedureExecutionContext context)
{
if (fragmentId == SysProcFragmentId.PF_validatePartitioning) {
final VoltTable results = constructPartitioningResultsTable();
List tableIds = new ArrayList();
List tableNames = new ArrayList();
for (Table t : CatalogUtil.getSnapshotableTables(context.getDatabase(), false).getFirst()) {
tableIds.add(t.getRelativeIndex());
tableNames.add(t.getTypeName());
}
long mispartitionedCounts[] = context.getSiteProcedureConnection().validatePartitioning(
Longs.toArray(tableIds), (byte[])params.toArray()[0]);
for (int ii = 0; ii < tableNames.size(); ii++) {
results.addRow(context.getHostId(), CoreUtils.getSiteIdFromHSId(context.getSiteId()), context.getPartitionId(), tableNames.get(ii), mispartitionedCounts[ii]);
}
return new DependencyPair.TableDependencyPair( DEP_validatePartitioning, results);
} else if (fragmentId == SysProcFragmentId.PF_validatePartitioningResults) {
assert (dependencies.size() > 0);
final VoltTable results = VoltTableUtil.unionTables(dependencies.get(DEP_validatePartitioning));
return new DependencyPair.TableDependencyPair( DEP_validatePartitioningResults, results);
} else if (fragmentId == SysProcFragmentId.PF_matchesHashinator) {
final VoltTable matchesHashinator = constructHashinatorMatchesTable();
byte [] configBytes = (byte[])params.toArray()[0];
final long givenConfigurationSignature =
TheHashinator.computeConfigurationSignature(configBytes);
matchesHashinator.addRow(
context.getHostId(),
CoreUtils.getSiteIdFromHSId(context.getSiteId()),
context.getPartitionId(),
givenConfigurationSignature == TheHashinator.getConfigurationSignature() ? (byte)1 : (byte)0);
return new DependencyPair.TableDependencyPair(DEP_matchesHashinator, matchesHashinator);
} else if (fragmentId == SysProcFragmentId.PF_matchesHashinatorResults) {
assert (dependencies.size() > 0);
final VoltTable results = VoltTableUtil.unionTables(dependencies.get(DEP_matchesHashinator));
return new DependencyPair.TableDependencyPair( DEP_matchesHashinatorResults, results);
}
assert (false);
return null;
}
private VoltTable constructPartitioningResultsTable() {
ColumnInfo[] result_columns = new ColumnInfo[5];
int ii = 0;
result_columns[ii++] = new ColumnInfo(CNAME_HOST_ID, CTYPE_ID);
result_columns[ii++] = new ColumnInfo(CNAME_SITE_ID, CTYPE_ID);
result_columns[ii++] = new ColumnInfo(CNAME_PARTITION_ID, CTYPE_ID);
result_columns[ii++] = new ColumnInfo("TABLE", VoltType.STRING);
result_columns[ii++] = new ColumnInfo("MISPARTITIONED_ROWS", VoltType.BIGINT);
return new VoltTable(result_columns);
}
private VoltTable constructHashinatorMatchesTable() {
ColumnInfo [] columns = new ColumnInfo[] {
new ColumnInfo(CNAME_HOST_ID, CTYPE_ID),
new ColumnInfo(CNAME_SITE_ID, CTYPE_ID),
new ColumnInfo(CNAME_PARTITION_ID, CTYPE_ID),
new ColumnInfo("HASHINATOR_MATCHES", VoltType.TINYINT)
};
return new VoltTable(columns);
}
public VoltTable[] run(SystemProcedureExecutionContext ctx, byte config[]) throws VoltAbortException
{
final long startTime = System.currentTimeMillis();
VoltTable retval[];
if (config != null) {
retval = performValidatePartitioningWork(config );
} else {
retval = performValidatePartitioningWork(
TheHashinator.getCurrentConfig().configBytes);
}
final long endTime = System.currentTimeMillis();
final long duration = endTime -startTime;
HOST_LOG.info("Validating partitioning took " + duration + " milliseconds");
return retval;
}
private final VoltTable[] performValidatePartitioningWork(byte[] config)
{
SynthesizedPlanFragment[] pfs = new SynthesizedPlanFragment[2];
pfs[0] = new SynthesizedPlanFragment();
pfs[0].fragmentId = SysProcFragmentId.PF_validatePartitioning;
pfs[0].outputDepId = DEP_validatePartitioning;
pfs[0].multipartition = true;
pfs[0].parameters = ParameterSet.fromArrayNoCopy(config);
pfs[1] = new SynthesizedPlanFragment();
pfs[1].fragmentId = SysProcFragmentId.PF_validatePartitioningResults;
pfs[1].outputDepId = DEP_validatePartitioningResults;
pfs[1].inputDepIds = new int[] { DEP_validatePartitioning };
pfs[1].multipartition = false;
pfs[1].parameters = ParameterSet.emptyParameterSet();
ArrayList results = new ArrayList();
for (VoltTable t: executeSysProcPlanFragments(pfs, DEP_validatePartitioningResults)) {
results.add(t);
}
pfs[0] = new SynthesizedPlanFragment();
pfs[0].fragmentId = SysProcFragmentId.PF_matchesHashinator;
pfs[0].outputDepId = DEP_matchesHashinator;
pfs[0].multipartition = true;
pfs[0].parameters = ParameterSet.fromArrayNoCopy(config);
pfs[1] = new SynthesizedPlanFragment();
pfs[1].fragmentId = SysProcFragmentId.PF_matchesHashinatorResults;
pfs[1].outputDepId = DEP_matchesHashinatorResults;
pfs[1].inputDepIds = new int[] { DEP_matchesHashinator };
pfs[1].multipartition = false;
pfs[1].parameters = ParameterSet.emptyParameterSet();
for (VoltTable t: executeSysProcPlanFragments(pfs, DEP_matchesHashinatorResults)) {
results.add(t);
}
return results.toArray(new VoltTable[0]);
}
}
