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Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing
/*
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional information regarding
* copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License. You may obtain a
* copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package org.apache.geode.internal.cache.execute;
import org.apache.geode.StatisticDescriptor;
import org.apache.geode.Statistics;
import org.apache.geode.StatisticsFactory;
import org.apache.geode.StatisticsType;
import org.apache.geode.StatisticsTypeFactory;
import org.apache.geode.distributed.internal.DistributionStats;
import org.apache.geode.internal.statistics.DummyStatisticsImpl;
import org.apache.geode.internal.statistics.StatisticsTypeFactoryImpl;
public class FunctionServiceStats {
/** The StatisticsType of the statistics */
private static final StatisticsType _type;
/**
* Total number of completed function.execute() calls (aka invocations of a function) per VM. Name
* of the function executions completed statistic
*/
private static final String FUNCTION_EXECUTIONS_COMPLETED = "functionExecutionsCompleted";
/**
* Total time consumed for all completed invocations Name of the function executions completed
* processing time statistic
*/
private static final String FUNCTION_EXECUTIONS_COMPLETED_PROCESSING_TIME =
"functionExecutionsCompletedProcessingTime";
/**
* A guage indicating the number of currently running invocations Name of the function executions
* running statistic
*/
private static final String FUNCTION_EXECUTIONS_RUNNING = "functionExecutionsRunning";
/**
* Total number of results sent to the ResultCollector Name of the results returned statistic
*/
private static final String RESULTS_SENT_TO_RESULTCOLLECTOR = "resultsSentToResultCollector";
/**
* Total number of FunctionService...execute() calls Name of the total function executions call
* statistic
*/
private static final String FUNCTION_EXECUTION_CALLS = "functionExecutionCalls";
/**
* Total time consumed for all completed execute() calls where hasResult() returns true. Name of
* the function executions calls having hasResult=true time statistic
*/
private static final String FUNCTION_EXECUTIONS_HASRESULT_COMPLETED_PROCESSING_TIME =
"functionExecutionsHasResultCompletedProcessingTime";
/**
* A gauge indicating the number of currently active execute() calls for functions where
* hasResult() returns true. Name of the function execution time statistic
*/
private static final String FUNCTION_EXECUTIONS_HASRESULT_RUNNING =
"functionExecutionsHasResultRunning";
/**
* Total number of Exceptions Occuredwhile executing function Name of the functionExecution
* exceptions statistic
*/
private static final String FUNCTION_EXECUTION_EXCEPTIONS = "functionExecutionsExceptions";
/**
* Total number of results sent to the ResultCollector Name of the results returned statistic
*/
private static final String RESULTS_RECEIVED = "resultsReceived";
/** Id of the FUNCTION_EXECUTIONS_COMPLETED statistic */
private static final int _functionExecutionsCompletedId;
/** Id of the FUNCTION_EXECUTIONS_COMPLETED_PROCESSING_TIME statistic */
private static final int _functionExecutionsCompletedProcessingTimeId;
/** Id of the FUNCTION_EXECUTIONS_RUNNING statistic */
private static final int _functionExecutionsRunningId;
/** Id of the RESULTS_SENT_TO_RESULTCOLLECTOR statistic */
private static final int _resultsSentToResultCollectorId;
/** Id of the FUNCTION_EXECUTIONS_CALL statistic */
private static final int _functionExecutionCallsId;
/** Id of the FUNCTION_EXECUTION_HASRESULT_COMPLETED_TIME statistic */
private static final int _functionExecutionsHasResultCompletedProcessingTimeId;
/** Id of the FUNCTION_EXECUTIONS_HASRESULT_RUNNING statistic */
private static final int _functionExecutionsHasResultRunningId;
/** Id of the FUNCTION_EXECUTIONS_EXCEPTIONS statistic */
private static final int _functionExecutionExceptions;
/** Id of the RESULTS_RECEIVED statistic */
private static final int _resultsReceived;
/**
* Static initializer to create and initialize the StatisticsType
*/
static {
String statName = "FunctionServiceStatistics";
String statDescription =
"This is the aggregate Function Execution Stats (for all function Executions)";
StatisticsTypeFactory f = StatisticsTypeFactoryImpl.singleton();
_type = f.createType(statName, statDescription,
new StatisticDescriptor[] {f.createIntCounter(FUNCTION_EXECUTIONS_COMPLETED,
"Total number of completed function.execute() calls", "operations"),
f.createLongCounter(FUNCTION_EXECUTIONS_COMPLETED_PROCESSING_TIME,
"Total time consumed for all completed invocations", "nanoseconds"),
f.createIntGauge(FUNCTION_EXECUTIONS_RUNNING, "number of currently running invocations",
"operations"),
f.createIntCounter(RESULTS_SENT_TO_RESULTCOLLECTOR,
"Total number of results sent to the ResultCollector", "operations"),
f.createIntCounter(RESULTS_RECEIVED,
"Total number of results received and passed to the ResultCollector", "operations"),
f.createIntCounter(FUNCTION_EXECUTION_CALLS,
"Total number of FunctionService.execute() calls", "operations"),
f.createLongCounter(FUNCTION_EXECUTIONS_HASRESULT_COMPLETED_PROCESSING_TIME,
"Total time consumed for all completed execute() calls where hasResult() returns true.",
"nanoseconds"),
f.createIntGauge(FUNCTION_EXECUTIONS_HASRESULT_RUNNING,
"A gauge indicating the number of currently active execute() calls for functions where hasResult() returns true.",
"operations"),
f.createIntCounter(FUNCTION_EXECUTION_EXCEPTIONS,
"Total number of Exceptions Occured while executing function", "operations"),
});
// Initialize id fields
_functionExecutionsCompletedId = _type.nameToId(FUNCTION_EXECUTIONS_COMPLETED);
_functionExecutionsCompletedProcessingTimeId =
_type.nameToId(FUNCTION_EXECUTIONS_COMPLETED_PROCESSING_TIME);
_functionExecutionsRunningId = _type.nameToId(FUNCTION_EXECUTIONS_RUNNING);
_resultsSentToResultCollectorId = _type.nameToId(RESULTS_SENT_TO_RESULTCOLLECTOR);
_functionExecutionCallsId = _type.nameToId(FUNCTION_EXECUTION_CALLS);
_functionExecutionsHasResultCompletedProcessingTimeId =
_type.nameToId(FUNCTION_EXECUTIONS_HASRESULT_COMPLETED_PROCESSING_TIME);
_functionExecutionsHasResultRunningId = _type.nameToId(FUNCTION_EXECUTIONS_HASRESULT_RUNNING);
_functionExecutionExceptions = _type.nameToId(FUNCTION_EXECUTION_EXCEPTIONS);
_resultsReceived = _type.nameToId(RESULTS_RECEIVED);
}
// //////////////////// Instance Fields //////////////////////
/** The Statistics instance to which most behavior is delegated */
private final Statistics _stats;
// ///////////////////// Constructors ///////////////////////
/**
* Constructor.
*
* @param factory The StatisticsFactory which creates the Statistics
* instance
* @param name The name of the Statistics
*/
public FunctionServiceStats(StatisticsFactory factory, String name) {
this._stats = factory.createAtomicStatistics(_type, name);
}
private FunctionServiceStats() {
this._stats = new DummyStatisticsImpl(this._type, null, 0);
}
static FunctionServiceStats createDummy() {
return new FunctionServiceStats();
}
// /////////////////// Instance Methods /////////////////////
/**
* Closes the FunctionServiceStats.
*/
public void close() {
this._stats.close();
}
/**
* Returns the current value of the "Total number of completed function.execute() calls" stat.
*
* @return the current value of the "function Executions completed" stat
*/
public int getFunctionExecutionsCompleted() {
return this._stats.getInt(_functionExecutionsCompletedId);
}
/**
* Increments the "FunctionExecutionsCompleted" stat.
*/
public void incFunctionExecutionsCompleted() {
this._stats.incInt(_functionExecutionsCompletedId, 1);
}
/**
* Returns the current value of the "Total time consumed for all completed invocations" stat.
*
* @return the current value of the "functionExecutionCompleteProcessingTime" stat
*/
public long getFunctionExecutionCompleteProcessingTime() {
return this._stats.getLong(_functionExecutionsCompletedProcessingTimeId);
}
/**
* Returns the current value of the "number of currently running invocations" stat.
*
* @return the current value of the "functionExecutionsRunning" stat
*/
public int getFunctionExecutionsRunning() {
return this._stats.getInt(_functionExecutionsRunningId);
}
/**
* Increments the "FunctionExecutionsRunning" stat.
*/
public void incFunctionExecutionsRunning() {
this._stats.incInt(_functionExecutionsRunningId, 1);
}
/**
* Returns the current value of the "Total number of results sent to the ResultCollector" stat.
*
* @return the current value of the "resultsReturned" stat
*/
public int getResultsSentToResultCollector() {
return this._stats.getInt(_resultsSentToResultCollectorId);
}
/**
* Increments the "ResultsReturnedToResultCollector" stat.
*/
public void incResultsReturned() {
this._stats.incInt(_resultsSentToResultCollectorId, 1);
}
/**
* Returns the current value of the "Total number of results received and passed to
* ResultCollector" stat.
*
* @return the current value of the "resultsReturned" stat
*/
public int getResultsReceived() {
return this._stats.getInt(_resultsReceived);
}
/**
* Increments the "ResultsReturnedToResultCollector" stat.
*/
public void incResultsReceived() {
this._stats.incInt(_resultsReceived, 1);
}
/**
* Returns the current value of the "Total number of FunctionService...execute() calls" stat.
*
* @return the current value of the "functionExecutionsCall" stat
*/
public int getFunctionExecutionCalls() {
return this._stats.getInt(_functionExecutionCallsId);
}
/**
* Increments the "FunctionExecutionsCall" stat.
*/
public void incFunctionExecutionCalls() {
this._stats.incInt(_functionExecutionCallsId, 1);
}
/**
* Returns the current value of the "Total time consumed for all completed execute() calls where
* hasResult() returns true" stat.
*
* @return the current value of the "functionExecutionHasResultCompleteProcessingTime" stat
*/
public int getFunctionExecutionHasResultCompleteProcessingTime() {
return this._stats.getInt(_functionExecutionsHasResultCompletedProcessingTimeId);
}
/**
* Returns the current value of the "A gauge indicating the number of currently active execute()
* calls for functions where hasResult() returns true" stat.
*
* @return the current value of the "functionExecutionHasResultRunning" stat
*/
public int getFunctionExecutionHasResultRunning() {
return this._stats.getInt(_functionExecutionsHasResultRunningId);
}
/**
* Increments the "FunctionExecutionsCall" stat.
*/
public void incFunctionExecutionHasResultRunning() {
this._stats.incInt(_functionExecutionsHasResultRunningId, 1);
}
/**
* Returns the current value of the "Total number of Exceptions Occured while executing function"
* stat.
*
* @return the current value of the "functionExecutionHasResultRunning" stat
*/
public int getFunctionExecutionExceptions() {
return this._stats.getInt(_functionExecutionExceptions);
}
/**
* Increments the "FunctionExecutionsCall" stat.
*/
public void incFunctionExecutionExceptions() {
this._stats.incInt(_functionExecutionExceptions, 1);
}
/**
* Returns the current time (ns).
*
* @return the current time (ns)
*/
public long startTime() {
return DistributionStats.getStatTime();
}
/**
* Increments the "_functionExecutionCallsId" and "_functionExecutionsRunningId" stats and
* "_functionExecutionHasResultRunningId" in case of function.hasResult = true..
*/
public void startFunctionExecution(boolean haveResult) {
// Increment number of function execution calls
this._stats.incInt(_functionExecutionCallsId, 1);
// Increment number of functions running
this._stats.incInt(_functionExecutionsRunningId, 1);
if (haveResult) {
// Increment number of function excution with haveResult = true call
this._stats.incInt(_functionExecutionsHasResultRunningId, 1);
}
}
/**
* Increments the "functionExecutionsCompleted" and "functionExecutionCompleteProcessingTime"
* stats.
*
* @param start The start of the functionExecution (which is decremented from the current time to
* determine the function Execution processing time).
* @param haveResult haveResult=true then update the _functionExecutionHasResultRunningId and
* _functionExecutionHasResultCompleteProcessingTimeId
*/
public void endFunctionExecution(long start, boolean haveResult) {
long ts = DistributionStats.getStatTime();
// Increment number of function executions completed
this._stats.incInt(_functionExecutionsCompletedId, 1);
// Decrement function Executions running.
this._stats.incInt(_functionExecutionsRunningId, -1);
// Increment function execution complete processing time
long elapsed = ts - start;
this._stats.incLong(_functionExecutionsCompletedProcessingTimeId, elapsed);
if (haveResult) {
// Decrement function Executions with haveResult = true running.
this._stats.incInt(_functionExecutionsHasResultRunningId, -1);
// Increment function execution with haveResult = true complete processing time
this._stats.incLong(_functionExecutionsHasResultCompletedProcessingTimeId, elapsed);
}
}
/**
* Increments the "_functionExecutionException" and decrements "_functionExecutionsRunningId"
*
* @param haveResult
*/
public void endFunctionExecutionWithException(boolean haveResult) {
// Decrement function Executions running.
this._stats.incInt(_functionExecutionsRunningId, -1);
// Increment number of function excution exceptions
this._stats.incInt(_functionExecutionExceptions, 1);
if (haveResult) {
// Decrement function Executions with haveResult = true running.
this._stats.incInt(_functionExecutionsHasResultRunningId, -1);
}
}
public Statistics getStats() {
return _stats;
}
}