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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 java.util.Map;
import javax.management.ObjectName;
import com.gemstone.gemfire.cache.DiskStore;
import com.gemstone.gemfire.cache.Region;
import com.gemstone.gemfire.distributed.DistributedMember;
import com.gemstone.gemfire.distributed.DistributedSystem;
/**
* MBean that provides access to information and management operations for a
* {@link DistributedSystem}.
*
* It also provides an API for navigating the other MBeans exposed by the
* GemFire distributed system.
*
* @author rishim
* @since 7.0
*
*/
public interface DistributedSystemMXBean {
/**
* Returns the ID of thie DistributedSystem.
*
* @return The DistributedSystem ID or -1 if not set.
*/
public int getDistributedSystemId();
/**
* Returns the number of members in the distributed system.
*/
public int getMemberCount();
/**
* Returns a list of names for all members.
*/
public String[] listMembers();
/**
* Returns a list of names for locator members.
*
* @param onlyStandAloneLocators
* if set to true, includes only stand alone locator
* members.
* @return a list of names for locator members.
*/
public String[] listLocatorMembers(boolean onlyStandAloneLocators);
/**
* Returns a list of names for all groups.
*/
public String[] listGroups();
/**
* Returns the number of locators in the distributed system.
*/
public int getLocatorCount();
/**
* Returns a list of IDs for all locators.
*/
public String[] listLocators(); //TODO - Abhishek Should be renamed to listLocatorDiscoveryConfigurations? Do we need something for mcast too?
/**
* Returns the number of disks stores in the distributed system.
*/
public int getSystemDiskStoreCount();
/**
* Returns a map of all {@link DistributedMember}s and their {@link DiskStore}s.
*/
public Map listMemberDiskstore();
/**
* Returns a list of IDs for all gateway senders.
*/
public String[] listGatewaySenders();
/**
* Returns a list of IDs for all gateway receivers.
*/
public String[] listGatewayReceivers();
/**
* Returns the minimum level set for alerts to be delivered to listeners.
*/
public String getAlertLevel();
/**
* Sets the minimum level for alerts to be delivered to listeners.
*
* @param alertLevel
* Minimum level for alerts to be delivered.
* Must be one of: WARNING, ERROR, SEVERE or NONE.
*/
public void changeAlertLevel(String alertLevel) throws Exception;
/**
* Returns the total available heap (in megabytes) across all distributed
* members.
* * @deprecated Please use {@link #getMaxMemory()} instead.
*/
public long getTotalHeapSize();
/**
* Returns the total max heap (in megabytes) across all distributed
* members.
*/
public long getMaxMemory();
/**
* Returns the total number of entries in all regions.
*/
public long getTotalRegionEntryCount();
/**
* Returns the number of {@link Region}s.
*/
public int getTotalRegionCount();
/**
* Returns the number of times that a cache miss occurred for all regions.
*/
public int getTotalMissCount();
/**
* Returns the number of times that a hit occurred for all regions.
*/
public int getTotalHitCount();
/**
* Returns the number of connected clients.
*/
public int getNumClients();
/**
* Returns the average number of disk reads per second across all distributed
* members.
*/
public float getDiskReadsRate();
/**
* Returns the average number of disk writes per second across all
* distributed members.
*/
public float getDiskWritesRate();
/**
* Returns the average disk flush latency time.
*/
public long getDiskFlushAvgLatency();
/**
* Returns the number of backups currently in progress for all disk stores.
*/
public int getTotalBackupInProgress();
/**
* Returns the number of initial images in progress.
*/
public int getNumInitialImagesInProgress();
/**
* Returns the number of active (currently executing) CQs for all cache servers.
*/
public long getActiveCQCount();
/**
* Returns the average number of queries per second across all
* distributed members.
*/
public float getQueryRequestRate();
/**
* Performs a backup on all members.
*
* @param targetDirPath
* Directory to which backup files will be written
* @return The results of the backup request.
*/
public DiskBackupStatus backupAllMembers(String targetDirPath)
throws Exception;
/**
* Returns the configuration information for a distributed member.
*
* @param member
* Name or ID of the member.
* @return The configuration information for a member.
* @throws Exception
* for an invalid member ID.
*/
public GemFireProperties fetchMemberConfiguration(String member)
throws Exception;
/**
* Returns the total time (in seconds) since a distributed member was started.
*
* @param member
* Name or ID of the member.
* @return The total time (in seconds) since a member was started.
* @throws Exception
* for an invalid member ID.
*/
public long fetchMemberUpTime(String member) throws Exception;
/**
* Returns a list of names for all cache servers.
*/
public String[] listCacheServers();
/**
* Returns JVM metrics for a distributed member.
*
* @param member
* Name or ID of the member.
* @throws Exception
* for an invalid member ID.
*/
public JVMMetrics showJVMMetrics(String member) throws Exception;
/**
* Returns operating system metrics for a distributed member.
*
* @param member
* Name or ID of the member.
* @throws Exception
* for an invalid member ID.
*/
public OSMetrics showOSMetrics(String member) throws Exception;
/**
* Returns network metrics for a distributed member.
*
* @param member
* Name or ID of the member.
* @throws Exception
* for an invalid member ID.
*/
public NetworkMetrics showNetworkMetric(String member) throws Exception;
/**
* Returns disk metrics for a distributed member.
*
* @param member
* Name or ID of the member.
* @throws Exception
* for an invalid member ID.
*/
public DiskMetrics showDiskMetrics(String member) throws Exception;
/**
* Shuts down all members of a distributed system except for the managing member.
*
* @return List of names of all distributed members that were shutdown.
*/
public String[] shutDownAllMembers() throws Exception;
/**
* Returns a list of names for all regions.
*/
public String[] listRegions();
/**
* Returns a list of full paths for all regions.
*/
public String[] listAllRegionPaths();
/**
* Removes a disk store from the distributed system.
*
* @param diskStoreId
* UUID of the disk store to remove
* @return True if the request is successful, false otherwise.
*/
public boolean revokeMissingDiskStores(String diskStoreId)
throws Exception;
/**
* Returns a list of details for disk stores which have been determined to be
* unavailable during the recovery of region.
*/
public PersistentMemberDetails[] listMissingDiskStores();
/**
* Returns the object name for a {@link MemberMXBean} used to access
* this distributed member.
*/
public ObjectName getMemberObjectName();
/**
* Returns the object name for a {@link ManagerMXBean} used to access the
* management service running on this distributed member.
*/
public ObjectName getManagerObjectName();
/**
* Returns a list of object names for the {@link MemberMXBean}s used to
* access all distributed members.
*/
public ObjectName[] listMemberObjectNames();
/**
* Returns the object name for a {@link MemberMXBean} used to access
* a distributed member..
*
* @param member
* Name or ID of the member.
*/
public ObjectName fetchMemberObjectName(String member) throws Exception;
/**
* Returns a list of object names for the {@link RegionMXBean}s used to
* access all regions on a distributed member.
*
* @param memberMBeanName
* ObjectName of the member.
*/
public ObjectName[] fetchRegionObjectNames(ObjectName memberMBeanName)
throws Exception;
/**
* Returns a list of object names for the {@link DistributedRegionMXBean}s
* used to access all distributed regions.
*
* @return An array of object names or an empty array if no distributed regions
* are found.
*/
public ObjectName[] listDistributedRegionObjectNames();
/**
* Returns the object name for a {@link DistributedRegionMXBean} used to
* access a distributed region.
*
* @param regionPath
* Full path of the region.
*/
public ObjectName fetchDistributedRegionObjectName(String regionPath)
throws Exception;
/**
* Returns the object name for a {@link RegionMXBean} used to access
* a region.
*
* @param member
* Name or ID of the member.
* @param regionPath
* Full path of the region.
*/
public ObjectName fetchRegionObjectName(String member, String regionPath)
throws Exception;
/**
* Returns the object name for a {@link GatewaySenderMXBean} used to access
* a gateway sender.
*
* @param member
* Name or ID of the member.
* @param senderId
* ID of a gateway sender.
*/
public ObjectName fetchGatewaySenderObjectName(String member,
String senderId) throws Exception;
/**
* Returns the object name for a {@link GatewayReceiverMXBean} used to access
* a gateway receiver.
*
* @param member
* Name or ID of the member.
*/
public ObjectName fetchGatewayReceiverObjectName(String member)
throws Exception;
/**
* Returns a list of object names for the {@link GatewaySenderMXBean}s
* used to access all gateway senders.
*
* @return An array of object names or an empty array if no gateway senders
* are found.
*/
public ObjectName[] listGatewaySenderObjectNames();
/**
* Returns a list of object names for the {@link GatewaySenderMXBean}s
* used to access all gateway senders on a member.
*
* @param member
* Name or ID of the member.
*/
public ObjectName[] listGatewaySenderObjectNames(String member)
throws Exception;
/**
* Returns a list of object names for the {@link GatewayReceiverMXBean}s
* used to access all gateway senders.
*
* @return An array of object names or an empty array if no gateway receivers
* are found.
*/
public ObjectName[] listGatewayReceiverObjectNames();
/**
* Returns the object name for a {@link DistributedLockServiceMXBean} used to
* access a distributed lock service.
*
* @param lockServiceName
* Name of the lock service.
*/
public ObjectName fetchDistributedLockServiceObjectName(String lockServiceName)
throws Exception;
/**
* Returns the object name for a {@link LockServiceMXBean} used to
* access a lock service.
*
* @param member
* Name or Id of the member.
* @param lockService
* Name of the lock service.
*/
public ObjectName fetchLockServiceObjectName(String member,
String lockService) throws Exception;
/**
* Returns object name of a {@link DiskStoreMXBean} for a given name and member
*
* @param member
* name or id of the member
* @param diskStoreName
* name of the disk store
* @return a ObjectName
* @throws Exception
*/
public ObjectName fetchDiskStoreObjectName(String member,
String diskStoreName) throws Exception;
/**
* Returns the object name for a {@link CacheServerMXBean} used to access
* a cache server.
*
* @param member
* Name or ID of the member.
* @param port
* Port of the server.
*/
public ObjectName fetchCacheServerObjectName(String member, int port)
throws Exception;
/**
* Returns a list of object names for the {@link CacheServerMXBean}s
* used to access all cache servers.
*/
public ObjectName[] listCacheServerObjectNames();
/**
* Returns the number of map-reduce jobs currently running on all members
* in the distributed system.
*/
public int getNumRunningFunctions();
/**
* Returns the number of CQs registers on all members.
*/
public long getRegisteredCQCount();
/**
* Returns the number of bytes used on all disks.
*/
public long getTotalDiskUsage();
/**
* Returns the total heap used on all members.
* @deprecated Please use {@link #getUsedMemory()} instead.
*/
public long getUsedHeapSize();
/**
* Returns the total heap used on all members.
*/
public long getUsedMemory();
/**
* Returns the total off-heap used on all members.
*/
public long getOffHeapUsedMemory();
/**
* Returns the total off-heap free on all members.
*/
public long getOffHeapFreeMemory();
/**
* Returns the average number of reads per second for all members.
*/
public float getAverageReads();
/**
* Returns the average writes per second, including both put and putAll operations,
* for all members.
*/
public float getAverageWrites();
/**
* Returns the number of subscriptions for all members.
*/
public int getNumSubscriptions();
/**
* Returns the number of garbage collection operations for all members.
*/
public long getGarbageCollectionCount();
/**
* Returns a map of remote distributed system IDs and the current connection
* status for each.
*/
public Map viewRemoteClusterStatus();
/**
* Returns the number JVM pauses (which may or may not include full garbage
* collection pauses) detected by GemFire.
*/
public long getJVMPauses();
/**
* This API is used to query data from GemFire system. This returns a JSON
* formated String having data and it's type. Type and value of data makes an
* array , type preceding the value.
*
* e.g. {"result":[["java.lang.String","v"],["java.lang.String","b"]]}
*
* GemFire PDXInstances are also supported. The type of PDXInstance is
* PDXInstance and value will be key value pair. There is no marker to know
* the "IdentityField" of the PDXInstance.
*
* If the query is executed on the cluster and no member list is given in
* input first key of the JSON string will be "result" followed by the result
* set in JSON format.
*
* If the query is executed on one or more specific members then returned
* string will have an array of "member" and "result" keys.
*
* For query on replicated region data from a random node which have the
* region is shown, if no member input is given. For PR regions data from all
* the nodes are collected and shown. User must be careful to query on a PR if
* the region is big and hosted on a lot of nodes
*
* Join queries on PR mandates that user provide one member as input. If the
* member does not host the regions or the regions are not co-located error
* string will be returned.
*
*
* @param queryString
* GemFire supported OQL query
* @param members
* comma separated list of members on which the query is to be
* executed. It is not mandatory to give this input barring join
* queries on PR. If member list is not provided query will be for
* the whole cluster.
* @param limit
* result set limit. If not set or 0 is passed default limit of 1000
* will be set.
* @return a JSON formated string containing data and its type
*/
public String queryData(String queryString, String members, int limit) throws Exception;
/**
*
* Functionality is same as queryData() method. Only difference being the
* resultant JSON string is compressed with Java GZIP with UTF-8 encoding. Any
* client application can de compress the byte[] using GZIP.
*
* e.g.
*
* GZIPInputStream gis = new GZIPInputStream(new ByteArrayInputStream(bytes));
*
* BufferedReader bf = new BufferedReader(new InputStreamReader(gis,"UTF-8"));
*
* String outStr = ""; String line; while ((line = bf.readLine()) != null) {
* outStr += line; }
*
* @param queryString
* GemFire supported OQL query
* @param members
* comma separated list of members on which the query is to be
* executed. It is not mandatory to give this input barring join
* queries on PR. If member list is not provided query will be for
* the whole cluster.
* @param limit
* result set limit. If not set or 0 is passed default limit of 1000
* will be set.
* @return a byte[] which is a compressed JSON string.
*/
public byte[] queryDataForCompressedResult(String queryString, String members, int limit) throws Exception;
/**
* Returns the number of committed transactions across all members. It gives
* point in time value i.e. Number of tx committed at the time of reading this
* value
*/
public int getTransactionCommitted();
/**
* Returns the number of transactions that were rolled back across all
* members. It gives point in time value i.e. Number of tx rolled back at the
* time of reading this value
*/
public int getTransactionRolledBack();
}