Server Shadowing and Recovery Server States | Compaq AA-Q88CE-TE

Server Shadowing and Recovery

B.9 Server States

Figure B–2 Server States

INITIAL

Backendnot	ProposeKR						Secondary
yet quorate	to Routers						Secondary
	WAIT−TR−RETRY			SECONDARY			node failure
				SECONDARY
				STANDBY
				STANDBY
WAIT_QUORUM	Retry	Router detects		Secondary		Primary site
WAIT_QUORUM		Router detects		Secondary		Primary site
		definition clash		alreadyactive		failure
ProposeKR				in cluster
to Routers	WAIT−TR−OK				STANDBY
	WAIT−TR−OK
			KR already
	Error		KR already
	Error		active on
			active on
	Proposal accepted		anotherCPU
Server declaration	− commit KR
Server declaration					Primary node
rejected					Primary node
rejected					failure
					failure
		WAITRESTART
Legend:		Router sends
KR Key range		Router sends		Inaccessible
KR Key range		listofrecovery
TX Transaction		listofrecovery
TX Transaction		Journals		Journal
TR TX Router		Journals		Journal
TR TX Router
		RESTART		Journal		WAIT−JNL
		Journal recovery		Journal
		Journal recovery		becomes
Non−shadowed		datafound(ifany)		accessible
Primary				Inaccessible
				Inaccessible
				Journal
		RECOVERING				WAIT−RVY
	NoSecondary		Primary	Journal
	Journal recovery			Journal
	Journal recovery			becomes
	datafound(ifany)		active	becomes		Inaccessible
	datafound(ifany)		active	accessible		Inaccessible
		No Primary				Journal
	REMEMBER			CATCHUP			WAIT
						Journal	CATCHUP
			Primary	Primary		becomes
	Secondary is			Primary		accessible
	Secondary is			active		accessible
	ready		failure	active
			failure

	ACTIVE			SECONDARY
						DD CDS 8−NOV−1991 17:23:35

Server Shadowing and Recovery B–7

Image 271

Compaq AA-Q88CE-TE manual Server Shadowing and Recovery Server States, Figure B-2 Server States

Contents

Reliable Transaction Router System Managers Manual June Contents RTR Monitoring Transaction Management RTR Command Line Interface 105 100103 104 XA Support Server Shadowing and RecoveryRTR Utility Error Messages RTR log messages Index Examples Creating Monitor Pictures Tables Arithmetic Operators in Display Commands Page Intended Audience Purpose of this ManualStructure of Document Readers Comments Related DocumentationConventions Convention Meaning Conventions Used in this GuidePage Getting Started Entering Commands Online Help Introduction Entering Commands Rtralrsta Command ProceduresRemote Commands Introduction Online Help Introduction Remote Commands Introduction Setting Up-An Example FrontendsFERoutersTRBackendsBE Starting and Setting Up RTR Setting Up-An ExampleExample 2-1 Local Conﬁguration of each Node Example 2-2 Remote Setup from one Node Creating a Recovery Journal Changing a Facility Starting and Setting Up RTR Creating a Recovery Journal Example 2-3 Reconﬁguration Using Delete and Create Facility Starting and Setting Up RTR Changing a Facility O N T E N D S U T E R S Example 2-4 Reconﬁguration Using Extend Facility Setting up Callout Servers Router Load Balancing Starting and Setting Up RTR 2.5 Setting up Callout ServersExample 2-5 Conﬁguration of Callout Servers Setting RTR Privileges on Unix Systems Starting and Setting Up RTR Router Load BalancingRTR Privileges RTR ACP Virtual Memory Sizing Starting and Setting Up RTR RTR PrivilegesSetting RTR Privileges on OpenVMS Systems Setting RTR Privileges on Windows NT Systems Astlm Biolm Diolm Fillm Pgflquota Starting and Setting Up RTR RTR ACP Virtual Memory Sizing Unix Virtual Memory Sizing Specifying the Link Transport Protocol Network Transports Anonymous Clients Using the Tunnel PreﬁxTroubleshooting Tunnel and Wildcard Connections TCP Services File Interoperation with RTR Version 2 Using DECnet Starting and Setting Up RTR Network Transports Network Protocol Selection on OpenVMS Running RTR as a Service on Windows NT$ DEFINE/SYSTEM Rtrprefprot Rtrdnafirst Files Created by the RTR Windows NT Service Role Assignment for Backend Node Partitions How RTR Selects Processing-states Roles for NodesActive Router Backend a Backend B Show Partition command on each backend node is as follows SET Partition test/PRIORITYLIST=bronze,gold Router Site a Node-A1 Site B Node-B1 Node-A2 Node-B2 Router Selection RTR Create Facility test/FRONTEND=Z/ROUTER=A,B,C What is Partition Management? What is a Partition?Overview Life Cycle of a Partition Partition Naming Explicit Partition Creation Binding Server Channels to Named PartitionsPersistence of Partition Deﬁnitions Programmed Partition Management Entering Partition CommandsPartition Management Entering Partition Commands Command Line Usage Programming Information Command Line ExampleManaging Partitions Controlling Shadowing Example usage of the qualiﬁers Controlling Recovery Controlling the Active Site Partition Management Managing Partitions Char Controlling Failover Rtruns32t newLimit Controlling Transaction Replay Displaying Partition Information RTR$DEFAULTFACILITYPartition Management Displaying Partition Information Transaction Management Transaction Management Overview Command Line ExamplesException Transactions 19 Valid Transaction State Transitions Transaction Management Overview Transaction State Changes 4Transaction Management Standard Monitor Pictures RTR Monitoring Standard Monitor Pictures RTR Monitoring Standard Monitor Pictures Cont Standard Monitor Pictures Dmark DEC.ZKO.DMARK Monitor Accfail Link Acceptance Failures Monitor ACP2APP PID -ALL RTR Monitoring Standard Monitor Pictures Monitor ActiveMonitor APP2ACP Monitor Broadcast Calls RTR Monitoring Standard Monitor Pictures Monitor CallsMonitor Channel Monitor Connects Monitor Facility Monitor Event Monitor Group RTR Monitoring Standard Monitor Pictures Monitor FlowMonitor Group Fields Monitor Ipcrate RTR Monitoring Standard Monitor Pictures Monitor IPCMonitor Journal Monitor Netbytes Monitor Link Monitor Partit RTR Monitoring Standard Monitor Pictures Monitor NetstatMonitor Partition States Monitor Quorum Monitor RecoveryNodea RTR$DEFAULTFACILITY Monitor Queues Monitor Rejects Monitor Recovery StatesMonitor Rejects Fields Monitor Rejhist Fields RTR Monitoring Standard Monitor Pictures Monitor RejhistMonitor Response Process 38009A8B Quorum Counts by Facility 7-JAN-1999 143248, Node -ALL RTR Monitoring Standard Monitor Pictures Monitor RolequorumMonitor Routers Monitor Routing Monitor RTR RTR Monitoring Standard Monitor Pictures Monitor Rscbe RTR Monitoring Standard Monitor Pictures Monitor Stalls Type Monitor Connects RTR Monitoring Standard Monitor Pictures Monitor System Servers RTR Monitoring Standard Monitor Pictures Monitor TPSMonitor Trafﬁc Monitor Trans Monitor XA RTR Monitoring Standard Monitor Pictures Monitor V2CALLSMonitor XA Page RTR Command Reference RTR Command Line Interface ADD Facility Call Rtraccepttx Call RtraccepttxFormat Description Independent Noindependent CHANNELNAME=RTR$DEFAULTCHANNELQualiﬁers Forget Noforget Accept the current transaction with a reason Related Commands Message-ﬁeld1 ,message-ﬁeld2 Call RtrbroadcasteventParameters Call Rtrbroadcastevent message-ﬁeld1 ,message-ﬁeld2 CHANNELNAME=channel-name Parameters for rtrbroadcasteventEVENTNUMBER=user-event-number TYPEOFDATA=STRING Signed Unsigned /TYPEOFDATA=STRING D Generated Format StringsLENGTHOFFIELD=ﬁeld-length RECIPIENTSPEC=rcpspc Call Rtrbroadcastevent Call Rtrclosechannel Call RtrclosechannelParameters for rtrclosechannel This command closes the channel named ``client1 Immediate IMMEDIATE=RTR$DEFAULTCHANNEL STATUS=status-code No default Call RtrerrortextCall Rtrerrortext Parameters for rtrerrortext Call Rtrgettid Call RtrgettidParameters for rtrgettid Tid e100b810,0,0,0,0,3bc5,6eb02001 Call Rtropenchannel Call Rtropenchannel Parameter Name Parameter Value Example Parameters for rtropenchannel Concurrent D Noconcurrent Client Noclient KEYn=keysegdesc FACILITY=RTR$DEFAULTFACILITY DFACILITYNAME=facility-name HIGHBOUND=high-bound HIGHBOUND=max-val-for-key-type D LOWBOUND=low-bound LOWBOUND=min-val-for-key-type D Standby D Nostandby PARTITIONNAME=partition-name Call Rtrclosechannel Call Rtrpreparetx Call RtrpreparetxParameters for rtrpreparetx DATA=0 DATA=data Prepare the current transaction with a reason Call Rtrreceivemessage Call RtrreceivemessageParameters for rtrreceivemessage 26RTR Command Line Interface Msgsb msgtype msglen usrhdl 0 tid Call Rtrrejecttx Call Rtrrejecttx10 Parameters for rtrrejecttx Call Rtropenchannel Call Rtraccepttx Reject the current transaction with a reason Call Rtrreplytoclient message-ﬁeld1 ,message-ﬁeld2 Call Rtrreplytoclient Accept Noaccept 11 Parameters for rtrreplytoclient 12 Generated Format Strings Following example replies a message to the client Call Rtrrequestinfo Call Rtrrequestinfo13 Parameters for rtrrequestinfo SELVAL=item-value No default GETITM=item-name,item-name... No defaultINFCLA=infoclass No default SELITM=item-name No default RTR Call RTRRECEIVEMESSAGE/CHANNEL=INFOCHAN/TIMEOUT Call Rtrsendtoserver message-ﬁeld1 ,message-ﬁeld2 Call RtrsendtoserverMessage-ﬁeld ,message-ﬁeld2 Expendable Noexpendable 14 Parameters for rtrsendtoserver Readonly Noreadonly 15 Generated Format Strings Examples Nested Transaction Usage Call RtrstarttxCall Rtrstarttx 16 Parameters for rtrstarttx Ddtm JOINTXID=txid-numberNojointxid Txidtype Call Rtrrejecttx Call Rtraccepttx Clear Clear=column =row 46RTR Command Line Interface Create Facility facilityname Create FacilityFacilityname Default for role-list is ROUTER,BACKEND RESOURCEMANAGER=resource-list 50RTR Command Line Interface Create Journal disk-1 ... ,disk-n Create JournalDisk-1, ... disk-n Unix 17 Platform Speciﬁc Information Delete Journal Modify Journal Show Journal Partitionname Create PartitionPartitionname Facility Create Facility SET Partition Key names Define /KEYDefine /KEY key-name equivalence-string Key-name Echo D Noecho Equivalence-string RTR Define /KEY PF1 Create /TERMINATE /IFSTATE=GOLD /ECHO RTR Define /KEY PF3 Show RTR /TERMINATERTR PF3 RTR Define /KEY PF1 Help /SETSTATE=GOLD /NOTERMINATE /ECHO 60RTR Command Line Interface Delete Facility facilityname Delete Facility Create Facility Show Facility Delete Journal Delete Journal 64RTR Command Line Interface Delete Partition Create Partition Show Partition Display BAR expression Display BARExpression Noaverage AVERAGE=keywordCHARACTER=char Noseparate SEPARATE=keyword Nototalize TOTALIZE=keyword=column =previous-column D Display Numeric expression Display Numeric DECIMALS=decimal-places /DECIMALS=0 D KeywordMeaning =column /X=previous-column D 76RTR Command Line Interface Display String expression Display String 78RTR Command Line Interface WIDTH=ﬁeld-width /WIDTH=0 D 80RTR Command Line Interface Display Symbolic expression text-string ,text-string Display Symbolic 82RTR Command Line Interface Display Text text Display TextText Node Nonode Related Commands DCL-command Do operating-system-command RTR DO/CLUSTER Show Time ExampleRTR DO/NODE=TR2,TR1 Show Logical Mylogical Flush Namecache Flush Namecache Execute ﬁle-spec Executeﬁle-spec Exit Exit Extend Facility facilityname Extend Facility ROUTER=FETRBE $ RTR RTR SET Environment /NODE=FE,FETRBEBACKEND=FETRBE $ RTR Default for role-list is ROUTER,BACKEND Create Facility Delete Facility Show Facility Trim Facility Initialize Journal LOG LOG RTR LOG/OUTPUT=RTRLOG.LOG Message check here Modify Journal disk-1 ... ,disk-n Modify JournalDisk-1 ... disk-n RTR Modify Journal DISK1$/BLOCKS=3000/MAXIMUMBLOCKS=20000 OpenVMS Example Monitor monitor-ﬁle-spec MonitorMonitor-ﬁle-spec Noidentification D IDENTIFICATION=process-id RTR Monitor TRAFFIC/COUNT=10/OUTPUT=PICTURE.LIS Quit Quit Command-speciﬁer Recall command-speciﬁerRecall Resourcename Register Resource Manager Register RMResourcename 106RTR Command Line Interface Amount ScrollScroll direction amount Direction NODE=node-list SET EnvironmentSET Environment Cluster SET Facility facility-name SET Facility Balance Nobalance RTR SET Facility FINANCE/BALANCE RTR SET Facility FINANCE/QUORUMTHRESHOLD=4 SET Link link-name SET Link Enable Disable Suspect Nosuspect RTR SET Link JOEY/AUTOISOLATE RTR SET Link JOEY/ENABLE SET LOG SET LOG RTR SET LOG/NOFILE/NOOPERATOR RTR SET LOG/FILE=RTRLOG.LOG/OPERATORRTR SET LOG/OPERATOR Nogroup SET ModeSET Mode GROUP=user-id RTR SET MODE/NOGROUP RTR SET MODE/GROUP SET node SET Node RTR SET Node /NOISOLATE SET Partition partition-name SET PartitionPartition-name Resume RECOVERYRETRYCOUNT=nRestartrecovery PRIORITYLIST=backend-node-list Suspend Timeout SET Transaction transaction-id SET Transaction BEFORE=date Facility FACILITY=RTR$DEFAULTFACILITY DUsage Notes Transaction-id 19 Valid Transaction State Changes NewstateSINCE=date RTR SET Transaction /NEW=ABORT /CURRENT=VOTED /PART=DBPART Show Channel channel-name Show ChannelChannel-name CLICHN2 RTR$DEFAULTCHANNELRTR Show CHANNEL/ALLWINDOWS Clichn Show Client Show ClientFull none D TEST43 RTR Show CLIENT/FULLCLI Show Display Show Display=column /Y=row WIDTH=9 RTR MON Calls RTR Show DISPLAY/ALLDisplay Numeric Blank Show Environment Show EnvironmentRTR SET ENVIRONMENT/NODE=FE2,FE3 RTR Show Environment Show Facility facility-name Show FacilityFacility-name State Nostated Link to Airola Frontend Yes Router Backend RTR Show FACILITY/FULL/NODE=BRONZE RTR Show FACILITY/BALANCE Show Journal Show Journal Create Journal Delete Journal Initialize Journal Show KEY key-name Show KEY RTR Show KEY/FULL Show Link node-name Show LinkNode-name RTR Show LINK/FULL Iron Full Show LOG Show LOG RTR Show LOG Show Mode Show Mode RTR Show Mode Show Node Show Node RTR Show Node Show Partition Show Partition20 Key-Range States 21 Router Partition States RTR Show PARTITION/BACKEND RTR Show PARTITION/ROUTER/FULL Show Partition Show Process Show Process Processes Process-id Process Name Show Requester Show RM resourcename Show Resource Manager Show RM Rmid Show RTR Show RTR RTR Show RTR Status D Nostatus Show Segment Show Segment RTR$DEFAULTFACILITY Unsigned Testfac Signed Show Server Show Server22 Key-range States Server Flags Lowerserv RTR Show ServerSRV RTR Show SERVER/FULL Show Transaction Show Transaction24 Transaction Invocation Types 25 Key-Range States Original Key-Range StatesRTR Show TRANSACTION/BACKEND/FULL Receiving Noutput Spawn operating-system-commandOperating-system-command Spawn Start RTR Start RTR BIOLM=io-buffered ASTLM=ast-limit 174RTR Command Line Interface PRCLM=subprocess-limit /PRCLM=10 D Show RTR Stop RTR Stop RTR Stop RTRAbort Show RTR Start RTR Trim Facility facilityname Trim Facility FRONTEND=frontend-list RTR RTR SET Environment /NODE=FE,FETRBE,NFE Nofrontend D Unregister Resource Manager Unregister RM Table A-1 Information Classes Creating Monitor Pictures Example A-1 Interactive Picture Deﬁnition Interactive Deﬁnition of a Monitor Picture Test Picture AT Some Data Item Other Data Item Substitution SymbolsTable A-2 Substitution symbols Arithmetic Expressions and Operators Example A-2 Arithmetic Operators Examples Table A-3 Arithmetic Operators in Display Commands Some output has been omitted for clarity Aggregation of Data ItemsPage Primary and Secondary Roles Automatic FeaturesShadow Events RTR Journal System Server Shadowing and Recovery Automatic Features Shadow Site Failure and Journaling Server Shadowing and Recovery RTR Journal System Performance Standby for Shadows Shadows in Action Server Shadowing and Recovery PerformanceApplication Considerations Server States Server Shadowing and Recovery Application ConsiderationsCHAN2 Figure B-2 Server States Server Shadowing and Recovery Server States CHAN3 Server Shadowing and Recovery Client StatesClient States Requester State Transitions Partition States Server Shadowing and Recovery Partition StatesPage XA Support New Qualiﬁer to Create Facility Command RTR Open Channel Microsoft DTC SupportXA Support Introduction Modiﬁed RTR API RTR Utility Error Messages RTR Utility Error Messages RTR Utility Error Messages D-3 4RTR Utility Error Messages RTR Utility Error Messages D-5 6RTR Utility Error Messages RTR Utility Error Messages D-7 8RTR Utility Error Messages RTR Utility Error Messages D-9 Explanation RTR Utility Error Messages D-11 12RTR Utility Error Messages RTR Utility Error Messages D-13 Blocks RTR Utility Error Messages D-15 16RTR Utility Error Messages RTR Utility Error Messages D-17 18RTR Utility Error Messages RTR Utility Error Messages D-19 20RTR Utility Error Messages RTR Utility Error Messages D-21 22RTR Utility Error Messages RTR-S-RTRLOGENT, a 24RTR Utility Error Messages RTR Utility Error Messages D-25 26RTR Utility Error Messages RTR log messages 2RTR log messages RTR log messages E-3 4RTR log messages RTR-I-FACSTOPPED, Facility a stopped on local node 6RTR log messages RTR-I-LOGFILENT, a a a 8RTR log messages RTR log messages E-9 10RTR log messages RTR log messages E-11 12RTR log messages RTR log messages E-13 Page Index Index-2 Index-3 Index-4