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/*
* Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
*
* 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. See accompanying
* LICENSE file.
*/
package com.gemstone.gemfire.management;
import com.gemstone.gemfire.cache.CacheListener;
import com.gemstone.gemfire.cache.CacheWriter;
import com.gemstone.gemfire.cache.EvictionAlgorithm;
import com.gemstone.gemfire.cache.Region;
/**
* MBean that provides access to information and management functionality for a
* local {@link Region}.
*
* For all the latency related attributes e.g. PutRemoteLatency ,DiskWritesAverageLatency etc..
* "enable-time-statistics" should be set to true.
* @author rishim
* @since 7.0
*
*/
public interface RegionMXBean {
/**
* Returns the name of the Region.
*/
public String getName();
/**
* Returns the type (data policy) of the Region.
*/
public String getRegionType();
/**
* Returns the full path of the Region.
*/
public String getFullPath();
/**
* The name of the parent Region or null if the Region
* has no parent.
*/
public String getParentRegion();
/**
* Returns a list of the names of the sub regions.
*
* @param recursive
* True to recursively traverse and find sub-regions.
*/
public String[] listSubregionPaths(boolean recursive);
/**
* Returns the attributes of the Region.
*/
public RegionAttributesData listRegionAttributes();
/**
* Returns the partition attributes of the Region.
*/
public PartitionAttributesData listPartitionAttributes();
/**
* Returns the fixed partition attributes of the Region.
*/
public FixedPartitionAttributesData[] listFixedPartitionAttributes();
/**
* Returns the eviction attributes of the Region.
*/
public EvictionAttributesData listEvictionAttributes();
/**
* Returns the membership attributes of the Region.
*/
public MembershipAttributesData listMembershipAttributes();
/**
* Returns the time of the most recent modification.
* For partitioned region it will be -1 . This feature is not supported for partitioned regions.
*/
public long getLastModifiedTime();
/**
* Returns the time of the most recent access.
* For partitioned region it will be -1. This feature is not supported for partitioned regions.
*/
public long getLastAccessedTime();
/**
* Returns the number of times that a cache miss occurred.
* For partitioned region it will be -1 . This feature is not supported for partitioned regions.
*/
public long getMissCount();
/**
* Returns the number of times that a hit occurred.
* For partitioned region it will be -1.This feature is not supported for partitioned regions.
*/
public long getHitCount();
/**
* Returns the hit to miss ratio.
* For partitioned region it will be -1 .This feature is not supported for partitioned regions.
*/
public float getHitRatio();
/**
* Returns the number of entries in the Region within this member.
*
* For partitioned regions it will be the entry count for the primary buckets
* hosted within this member.
*
* For HDFS regions it will be count of only in memory data.
*
*/
public long getEntryCount();
/**
* Returns the number of gets per second.
*/
public float getGetsRate();
/**
* Returns the number of puts per second.
*/
public float getPutsRate();
/**
* Returns the number of creates per second.
*/
public float getCreatesRate();
/**
* Returns the number of destroys per second.
*/
public float getDestroyRate();
/**
* Returns the number of putAlls per second.
*/
public float getPutAllRate();
/**
* Returns the number of local puts per second.Only applicable for partitioned
* regions.
*/
public float getPutLocalRate();
/**
* Returns the number of remote puts per second.Only applicable for
* partitioned regions.
*/
public float getPutRemoteRate();
/**
* Returns the latency for the most recent remote put in nanoseconds.Only
* applicable for partitioned regions.
*/
public long getPutRemoteLatency();
/**
* Returns the average latency for remote puts in nanoseconds.Only applicable
* for partitioned regions.
*/
public long getPutRemoteAvgLatency();
/**
* Returns the current number of entries whose values are only on disk (not in
* memory). Entries may not exist in memory if they have been overflowed to
* disk or not yet been faulted in after a recovery.
*/
public long getTotalEntriesOnlyOnDisk();
/**
* Returns the current number of entries held in memory.
*/
public long getTotalDiskEntriesInVM();
/**
* Returns the number of entries reads per second from disk.
*/
public float getDiskReadsRate();
/**
* Returns the average latency of disk reads in nanoseconds
* @deprecated See corresponding DiskStores latency to get the latency.
*/
public long getDiskReadsAverageLatency();
/**
* Returns the average latency of disk writes in nanoseconds.
* @deprecated See corresponding DiskStores latency to get the latency.
*/
public long getDiskWritesAverageLatency();
/**
* Returns the number of entries written per second to disk.
*/
public float getDiskWritesRate();
/**
* Returns the current number of disk writes in progress.
*/
public long getTotalDiskWritesProgress();
/**
* Returns the current number of disk tasks (op-log compaction, asynchronous
* recoveries, etc) that are waiting for a thread to run.
* @deprecated
*/
public long getDiskTaskWaiting();
/**
* Returns the average latency of a call to a {@link CacheWriter} in nanoseconds.
*/
public long getCacheWriterCallsAvgLatency();
/**
* Returns the average latency of a call to a {@link CacheListener} in nanoseconds.
*/
public long getCacheListenerCallsAvgLatency();
/**
* Returns the entry eviction rate as triggered by the LRU policy.
*/
public float getLruEvictionRate();
/**
* Returns the rate of entries destroyed either by destroy cache operations or
* eviction.
*/
public float getLruDestroyRate();
/**
* Returns the number of buckets on this member. Only applicable for partitioned
* regions.
*/
public int getBucketCount();
/**
* Returns the number of primary buckets on this member. Only applicable for
* partitioned regions.
*/
public int getPrimaryBucketCount();
/**
* Returns the number of buckets without full redundancy. Only applicable for
* partitioned regions.
*/
public int getNumBucketsWithoutRedundancy();
/**
* Returns the number of redundant copies configured for this partitioned
* region.Only applicable for partitioned regions.
*/
public int getConfiguredRedundancy();
/**
* Returns the actual number of redundant copies available for buckets in this
* partitioned region. Usually this is the number of redundant copies
* configured for buckets in the region. However, during initialization or
* error states the actual number of copies for any given bucket may be less
* than the configured number. In that case, the value returned will be the
* smallest number of redundant copies available for any single bucket.
*/
public int getActualRedundancy();
/**
* Returns the total number of entries in all buckets. Only applicable for
* partitioned regions.
*/
public int getTotalBucketSize();
/**
* Returns the average number of entries in bucket. Only applicable for
* partitioned regions.
*/
public int getAvgBucketSize();
/**
* Returns the total number of bytes stored in disk for this region.
*/
public long getDiskUsage();
/**
* Returns the aggregate entry size (in bytes) of all entries. This will
* provide a correct value only if the eviction algorithm has been set to
* {@link EvictionAlgorithm#LRU_MEMORY}.
*
* For all partition regions it will show entry size in bytes.
* It will also include size of all the secondary entries in the data store.
* So while referring to size one should take redundancy into account
*/
public long getEntrySize();
/**
* Returns whether this region sends data using a GatewaySender.
*/
public boolean isGatewayEnabled();
/**
* Returns the average number of read requests per second.
*/
public float getAverageReads();
/**
* Returns the average number of write requests per second. This include rates
* of put,putAll & create operations on the region
*/
public float getAverageWrites();
/**
* Returns whether persistence is enabled.
*/
public boolean isPersistentEnabled();
/**
* Returns the name/ID of the member hosting this Region.
*/
public String getMember();
/**
* Returns the maximum amount of local memory that can be used by the region.
* This attribute is applicable for PartitionedRegion only. For other regions it will be -1
*/
public int getLocalMaxMemory();
/**
* Estimated entry count for HDFS Read-Write regions.This may not be accurate but
* acts as an indicative value. All HDFS Read-Write regions regions are PartitionedRegions. Hence
* the estimated value will be for primary buckets hosted within the member.
*
* For other regions it will be -1 ( Not Available)
*/
public long getEstimatedSizeForHDFSRegion();
}