org.teiid.adminapi.EngineStatistics Maven / Gradle / Ivy
/*
* Copyright Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags and
* the COPYRIGHT.txt file distributed with this work.
*
* Licensed 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.teiid.adminapi;
public interface EngineStatistics extends AdminObject, DomainAware {
/**
* Active Number of Sessions in the engine
* @return
*/
int getSessionCount();
/**
* Total amount memory used by buffer manager for active queries and cached queries
* @return
*/
long getTotalMemoryUsedInKB();
/**
* Total memory used by buffer manager for active plans
* @return
*/
long getMemoryUsedByActivePlansInKB();
/**
* Number of writes to disk by buffer manager to save the overflow from memory
* @return
*/
long getDiskWriteCount();
/**
* Number reads from the disk used by buffer manager that cache overflowed.
* @return
*/
long getDiskReadCount();
/**
* Total number of cache reads, includes disk and soft-cache references
* @return
*/
long getCacheReadCount();
/**
* Total number of cache writes, includes disk and soft-cache references
* @return
*/
long getCacheWriteCount();
/**
* Disk space used by buffer manager to save overflowed memory contents
* @return
*/
long getDiskSpaceUsedInMB();
/**
* Current active plan count
* @return
*/
int getActivePlanCount();
/**
* Current number of waiting plans in the queue
* @return
*/
int getWaitPlanCount();
/**
* High water mark for the waiting plans
* @return
*/
int getMaxWaitPlanWaterMark();
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy