package edu.brown.hstore.stats;
import java.util.ArrayList;
import java.util.Iterator;
import org.apache.log4j.Logger;
import org.voltdb.StatsSource;
import org.voltdb.SysProcSelector;
import org.voltdb.VoltTable;
import org.voltdb.VoltTable.ColumnInfo;
import org.voltdb.VoltType;
import edu.brown.hstore.HStoreSite;
import edu.brown.hstore.estimators.TransactionEstimator;
import edu.brown.hstore.estimators.markov.MarkovEstimator;
import edu.brown.logging.LoggerUtil;
import edu.brown.logging.LoggerUtil.LoggerBoolean;
import edu.brown.profilers.MarkovEstimatorProfiler;
import edu.brown.profilers.ProfileMeasurement;
public class MarkovEstimatorProfilerStats extends StatsSource {
private static final Logger LOG = Logger.getLogger(MarkovEstimatorProfilerStats.class);
private static final LoggerBoolean debug = new LoggerBoolean();
private static final LoggerBoolean trace = new LoggerBoolean();
static {
LoggerUtil.attachObserver(LOG, debug, trace);
}
private final HStoreSite hstore_site;
public MarkovEstimatorProfilerStats(HStoreSite hstore_site) {
super(SysProcSelector.MARKOVPROFILER.name(), false);
this.hstore_site = hstore_site;
}
@Override
protected Iterator<Object> getStatsRowKeyIterator(boolean interval) {
final Iterator<Integer> it = hstore_site.getLocalPartitionIds().iterator();
return new Iterator<Object>() {
@Override
public boolean hasNext() {
return it.hasNext();
}
@Override
public Object next() {
return it.next();
}
@Override
public void remove() {
it.remove();
}
};
}
@Override
protected void populateColumnSchema(ArrayList<ColumnInfo> columns) {
super.populateColumnSchema(columns);
// Make a dummy profiler just so that we can get the fields from it
MarkovEstimatorProfiler profiler = new MarkovEstimatorProfiler();
assert(profiler != null);
columns.add(new VoltTable.ColumnInfo("PARTITION", VoltType.INTEGER));
for (ProfileMeasurement pm : profiler.getProfileMeasurements()) {
String name = pm.getName().toUpperCase();
// We need two columns per ProfileMeasurement
// (1) The total think time in nanoseconds
// (2) The number of invocations
columns.add(new VoltTable.ColumnInfo(name, VoltType.BIGINT));
columns.add(new VoltTable.ColumnInfo(name+"_CNT", VoltType.BIGINT));
} // FOR
}
@Override
protected synchronized void updateStatsRow(Object rowKey, Object[] rowValues) {
Integer partition = (Integer)rowKey;
TransactionEstimator est = hstore_site.getPartitionExecutor(partition).getTransactionEstimator();
assert(est != null) : "Unexpected null TransactionEstimator for partition " + partition;
MarkovEstimator.Debug dbg = ((MarkovEstimator)est).getDebugContext();
assert(dbg != null);
MarkovEstimatorProfiler profiler = dbg.getProfiler();
assert(profiler != null);
int offset = columnNameToIndex.get("PARTITION");
rowValues[offset++] = partition;
for (ProfileMeasurement pm : profiler.getProfileMeasurements()) {
rowValues[offset++] = pm.getTotalThinkTime();
rowValues[offset++] = pm.getInvocations();
} // FOR
super.updateStatsRow(rowKey, rowValues);
}
}