Flush Namecache | Compaq AA-Q88CE-TE guide

FLUSH NAME_CACHE

FLUSH NAME_CACHE

Flushes RTR's internal network name cache.

Format

FLUSH NAME_CACHE

Command Qualiﬁers	Defaults
/CLUSTER	/NOCLUSTER
/NODE[=node-list]	/NODE=default-node-list

Description

The FLUSH NAME_CACHE removes information for all known nodes from RTR's internal network name cache.

Network links could become unstable if a Distributed Name Service (DNS) was conﬁgured improperly or the service was slow in responding. During extreme DNS latency, RTR could time-out the connections to nodes waiting for a DNS response. To avoid these problems, RTR has implemented an internal node-name- to-id cache; this reduces RTR's exposure to degraded name servers. The contents of the cache can be deleted the command FLUSH NAME_CACHE.

FLUSH NAME_CACHE may be used if the network has been reconﬁgured or nodes have changed their addresses.

Qualiﬁers

/CLUSTER /NOCLUSTER (D)

Speciﬁes that the command is executed on all the nodes in the cluster.

If neither /NODE nor /CLUSTER is speciﬁed then the command is executed on the nodes speciﬁed by the latest SET ENVIRONMENT command. If no SET ENVIRONMENT command has been entered then the command is executed only on the node where the command was issued.

Note: In environments that do not support clustering, use of the /CLUSTER qualiﬁer will cause the relevant command to be executed on the local node only.

/NODE[=node-list] /NODE=default-node-list (D)

Speciﬁes that the command is executed on all nodes speciﬁed in node-list. If node-listis omitted then the command is executed only on the node where the command was issued.

6–88RTR Command Line Interface

Image 164

Compaq AA-Q88CE-TE manual Flush Namecache

Contents

Reliable Transaction Router System Managers Manual June Contents Transaction Management RTR Monitoring RTR Command Line Interface 100 103104 105 Server Shadowing and Recovery RTR Utility Error Messages RTR log messages Index ExamplesCreating Monitor Pictures XA Support Tables Arithmetic Operators in Display Commands Page Structure of Document Purpose of this ManualIntended Audience Conventions Related DocumentationReaders Comments Conventions Used in this Guide Convention MeaningPage Entering Commands Getting Started Introduction Entering Commands Online Help Command Procedures Remote CommandsIntroduction Online Help Rtralrsta Introduction Remote Commands Setting Up-An Example Introduction Example 2-1 Local Conﬁguration of each Node Starting and Setting Up RTR Setting Up-An ExampleFrontendsFERoutersTRBackendsBE Creating a Recovery Journal Example 2-2 Remote Setup from one Node Starting and Setting Up RTR Creating a Recovery Journal Changing a Facility Starting and Setting Up RTR Changing a Facility Example 2-3 Reconﬁguration Using Delete and Create Facility O N T E N D S U T E R S Setting up Callout Servers Example 2-4 Reconﬁguration Using Extend Facility Example 2-5 Conﬁguration of Callout Servers Starting and Setting Up RTR 2.5 Setting up Callout ServersRouter Load Balancing RTR Privileges Starting and Setting Up RTR Router Load BalancingSetting RTR Privileges on Unix Systems Starting and Setting Up RTR RTR Privileges Setting RTR Privileges on OpenVMS SystemsSetting RTR Privileges on Windows NT Systems RTR ACP Virtual Memory Sizing Starting and Setting Up RTR RTR ACP Virtual Memory Sizing Astlm Biolm Diolm Fillm Pgflquota Unix Virtual Memory Sizing Network Transports Specifying the Link Transport Protocol Using the Tunnel Preﬁx Troubleshooting Tunnel and Wildcard ConnectionsTCP Services File Anonymous Clients Starting and Setting Up RTR Network Transports Interoperation with RTR Version 2 Using DECnet $ DEFINE/SYSTEM Rtrprefprot Rtrdnafirst Running RTR as a Service on Windows NTNetwork Protocol Selection on OpenVMS Files Created by the RTR Windows NT Service Active How RTR Selects Processing-states Roles for NodesRole Assignment for Backend Node Partitions Show Partition command on each backend node is as follows Router Backend a Backend B SET Partition test/PRIORITYLIST=bronze,gold Router Selection Router Site a Node-A1 Site B Node-B1 Node-A2 Node-B2 RTR Create Facility test/FRONTEND=Z/ROUTER=A,B,C Overview What is a Partition?What is Partition Management? Partition Naming Life Cycle of a Partition Persistence of Partition Deﬁnitions Binding Server Channels to Named PartitionsExplicit Partition Creation Entering Partition Commands Partition Management Entering Partition CommandsCommand Line Usage Programmed Partition Management Command Line Example Managing PartitionsControlling Shadowing Programming Information Controlling Recovery Example usage of the qualiﬁers Partition Management Managing Partitions Controlling the Active Site Controlling Failover Char Controlling Transaction Replay Rtruns32t newLimit Partition Management Displaying Partition Information RTR$DEFAULTFACILITYDisplaying Partition Information Transaction Management Exception Transactions Command Line ExamplesTransaction Management Overview Transaction Management Overview Transaction State Changes 19 Valid Transaction State Transitions 4Transaction Management RTR Monitoring Standard Monitor Pictures RTR Monitoring Standard Monitor Pictures Standard Monitor Pictures Cont Standard Monitor Pictures Monitor Accfail Link Acceptance Failures Dmark DEC.ZKO.DMARK Monitor ACP2APP RTR Monitoring Standard Monitor Pictures Monitor Active Monitor APP2ACPMonitor Broadcast PID -ALL RTR Monitoring Standard Monitor Pictures Monitor Calls Monitor ChannelMonitor Connects Calls Monitor Event Monitor Facility Monitor Group Fields RTR Monitoring Standard Monitor Pictures Monitor FlowMonitor Group Monitor Journal RTR Monitoring Standard Monitor Pictures Monitor IPCMonitor Ipcrate Monitor Link Monitor Netbytes Monitor Partition States RTR Monitoring Standard Monitor Pictures Monitor NetstatMonitor Partit Monitor Recovery Nodea RTR$DEFAULTFACILITYMonitor Queues Monitor Quorum Monitor Rejects Fields Monitor Recovery StatesMonitor Rejects RTR Monitoring Standard Monitor Pictures Monitor Rejhist Monitor ResponseProcess 38009A8B Monitor Rejhist Fields RTR Monitoring Standard Monitor Pictures Monitor Rolequorum Monitor RoutersMonitor Routing Quorum Counts by Facility 7-JAN-1999 143248, Node -ALL RTR Monitoring Standard Monitor Pictures Monitor Rscbe Monitor RTR RTR Monitoring Standard Monitor Pictures Monitor Stalls RTR Monitoring Standard Monitor Pictures Monitor System Type Monitor Connects RTR Monitoring Standard Monitor Pictures Monitor TPS Monitor TrafﬁcMonitor Trans Servers Monitor XA RTR Monitoring Standard Monitor Pictures Monitor V2CALLSMonitor XA Page RTR Command Line Interface RTR Command Reference ADD Facility Call Rtraccepttx FormatDescription Call Rtraccepttx CHANNELNAME=RTR$DEFAULTCHANNEL QualiﬁersForget Noforget Independent Noindependent Related Commands Accept the current transaction with a reason Call Rtrbroadcastevent ParametersCall Rtrbroadcastevent message-ﬁeld1 ,message-ﬁeld2 Message-ﬁeld1 ,message-ﬁeld2 EVENTNUMBER=user-event-number Parameters for rtrbroadcasteventCHANNELNAME=channel-name Generated Format Strings LENGTHOFFIELD=ﬁeld-lengthRECIPIENTSPEC=rcpspc TYPEOFDATA=STRING Signed Unsigned /TYPEOFDATA=STRING D Call Rtrbroadcastevent Parameters for rtrclosechannel Call RtrclosechannelCall Rtrclosechannel Immediate IMMEDIATE=RTR$DEFAULTCHANNEL This command closes the channel named ``client1 Call Rtrerrortext Call RtrerrortextParameters for rtrerrortext STATUS=status-code No default Parameters for rtrgettid Call RtrgettidCall Rtrgettid Tid e100b810,0,0,0,0,3bc5,6eb02001 Call Rtropenchannel Call Rtropenchannel Parameters for rtropenchannel Parameter Name Parameter Value Example Client Noclient Concurrent D Noconcurrent FACILITY=RTR$DEFAULTFACILITY D FACILITYNAME=facility-nameHIGHBOUND=high-bound HIGHBOUND=max-val-for-key-type D KEYn=keysegdesc LOWBOUND=low-bound LOWBOUND=min-val-for-key-type D PARTITIONNAME=partition-name Standby D Nostandby Call Rtrclosechannel Parameters for rtrpreparetx Call RtrpreparetxCall Rtrpreparetx DATA=data DATA=0 Prepare the current transaction with a reason Parameters for rtrreceivemessage Call RtrreceivemessageCall Rtrreceivemessage 26RTR Command Line Interface Msgsb msgtype msglen usrhdl 0 tid 10 Parameters for rtrrejecttx Call RtrrejecttxCall Rtrrejecttx Call Rtropenchannel Call Rtraccepttx Reject the current transaction with a reason Call Rtrreplytoclient Call Rtrreplytoclient message-ﬁeld1 ,message-ﬁeld2 11 Parameters for rtrreplytoclient Accept Noaccept 12 Generated Format Strings Following example replies a message to the client 13 Parameters for rtrrequestinfo Call RtrrequestinfoCall Rtrrequestinfo GETITM=item-name,item-name... No default INFCLA=infoclass No defaultSELITM=item-name No default SELVAL=item-value No default RTR Call RTRRECEIVEMESSAGE/CHANNEL=INFOCHAN/TIMEOUT Message-ﬁeld ,message-ﬁeld2 Call RtrsendtoserverCall Rtrsendtoserver message-ﬁeld1 ,message-ﬁeld2 14 Parameters for rtrsendtoserver Expendable Noexpendable 15 Generated Format Strings Readonly Noreadonly Examples Call Rtrstarttx Call Rtrstarttx16 Parameters for rtrstarttx Nested Transaction Usage JOINTXID=txid-number NojointxidTxidtype Ddtm Call Rtrrejecttx Call Rtraccepttx =column =row ClearClear 46RTR Command Line Interface Facilityname Create FacilityCreate Facility facilityname Default for role-list is ROUTER,BACKEND RESOURCEMANAGER=resource-list 50RTR Command Line Interface Disk-1, ... disk-n Create JournalCreate Journal disk-1 ... ,disk-n 17 Platform Speciﬁc Information Unix Delete Journal Modify Journal Show Journal Partitionname Create PartitionPartitionname Facility Create Facility SET Partition Define /KEY Define /KEY key-name equivalence-stringKey-name Key names Equivalence-string Echo D Noecho RTR Define /KEY PF3 Show RTR /TERMINATE RTR PF3RTR Define /KEY PF1 Help /SETSTATE=GOLD /NOTERMINATE /ECHO RTR Define /KEY PF1 Create /TERMINATE /IFSTATE=GOLD /ECHO 60RTR Command Line Interface Delete Facility Delete Facility facilityname Create Facility Show Facility Delete Journal Delete Journal 64RTR Command Line Interface Delete Partition Create Partition Show Partition Expression Display BARDisplay BAR expression CHARACTER=char AVERAGE=keywordNoaverage SEPARATE=keyword Noseparate =column TOTALIZE=keywordNototalize =previous-column D Display Numeric Display Numeric expression DECIMALS=decimal-places /DECIMALS=0 D KeywordMeaning =column /X=previous-column D 76RTR Command Line Interface Display String Display String expression 78RTR Command Line Interface WIDTH=ﬁeld-width /WIDTH=0 D 80RTR Command Line Interface Display Symbolic Display Symbolic expression text-string ,text-string 82RTR Command Line Interface Text Display TextDisplay Text text Node Nonode Related Commands Do operating-system-command DCL-command RTR DO/NODE=TR2,TR1 Show Logical Mylogical ExampleRTR DO/CLUSTER Show Time Flush Namecache Flush Namecache ﬁle-spec ExecuteExecute ﬁle-spec Exit Exit Extend Facility Extend Facility facilityname $ RTR RTR SET Environment /NODE=FE,FETRBE BACKEND=FETRBE$ RTR ROUTER=FETRBE 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 Disk-1 ... disk-n Modify JournalModify Journal disk-1 ... ,disk-n OpenVMS Example RTR Modify Journal DISK1$/BLOCKS=3000/MAXIMUMBLOCKS=20000 Monitor-ﬁle-spec MonitorMonitor monitor-ﬁle-spec IDENTIFICATION=process-id Noidentification D RTR Monitor TRAFFIC/COUNT=10/OUTPUT=PICTURE.LIS Quit Quit Recall Recall command-speciﬁerCommand-speciﬁer Resourcename Register Resource Manager Register RMResourcename 106RTR Command Line Interface Scroll Scroll direction amountDirection Amount SET Environment SET EnvironmentCluster NODE=node-list SET Facility SET Facility facility-name Balance Nobalance RTR SET Facility FINANCE/QUORUMTHRESHOLD=4 RTR SET Facility FINANCE/BALANCE SET Link SET Link link-name Enable Disable Suspect Nosuspect RTR SET Link JOEY/ENABLE RTR SET Link JOEY/AUTOISOLATE SET LOG SET LOG RTR SET LOG/OPERATOR RTR SET LOG/FILE=RTRLOG.LOG/OPERATORRTR SET LOG/NOFILE/NOOPERATOR SET Mode SET ModeGROUP=user-id Nogroup RTR SET MODE/GROUP RTR SET MODE/NOGROUP SET Node SET node RTR SET Node /NOISOLATE Partition-name SET PartitionSET Partition partition-name RECOVERYRETRYCOUNT=n RestartrecoveryPRIORITYLIST=backend-node-list Resume Timeout Suspend SET Transaction SET Transaction transaction-id Facility FACILITY=RTR$DEFAULTFACILITY D Usage NotesTransaction-id BEFORE=date SINCE=date Newstate19 Valid Transaction State Changes RTR SET Transaction /NEW=ABORT /CURRENT=VOTED /PART=DBPART Channel-name Show ChannelShow Channel channel-name RTR$DEFAULTCHANNEL RTR Show CHANNEL/ALLWINDOWSClichn CLICHN2 Full none D Show ClientShow Client CLI RTR Show CLIENT/FULLTEST43 =column /Y=row Show DisplayShow Display RTR MON Calls RTR Show DISPLAY/ALL Display NumericBlank WIDTH=9 RTR SET ENVIRONMENT/NODE=FE2,FE3 RTR Show Environment Show EnvironmentShow Environment Facility-name Show FacilityShow Facility facility-name State Nostated RTR Show FACILITY/FULL/NODE=BRONZE Link to Airola Frontend Yes Router Backend RTR Show FACILITY/BALANCE Show Journal Show Journal Create Journal Delete Journal Initialize Journal Show KEY Show KEY key-name RTR Show KEY/FULL Node-name Show LinkShow Link node-name Full RTR Show LINK/FULL Iron Show LOG Show LOG RTR Show LOG Show Mode Show Mode RTR Show Mode Show Node Show Node RTR Show Node 20 Key-Range States Show PartitionShow Partition 21 Router Partition States RTR Show PARTITION/ROUTER/FULL RTR Show PARTITION/BACKEND Show Partition Show Process Show Process Processes Process-id Process Name Show Requester Show Resource Manager Show RM Show RM resourcename Rmid Show RTR Show RTR Status D Nostatus RTR Show RTR Show Segment Show Segment RTR$DEFAULTFACILITY Unsigned Testfac Signed 22 Key-range States Show ServerShow Server Server Flags RTR Show Server SRVRTR Show SERVER/FULL Lowerserv 24 Transaction Invocation Types Show TransactionShow Transaction 25 Key-Range States Key-Range States RTR Show TRANSACTION/BACKEND/FULLReceiving Original Spawn operating-system-command Operating-system-commandSpawn Noutput Start RTR Start RTR ASTLM=ast-limit BIOLM=io-buffered 174RTR Command Line Interface PRCLM=subprocess-limit /PRCLM=10 D Show RTR Stop RTR Abort Stop RTRStop RTR Show RTR Start RTR Trim Facility Trim Facility facilityname RTR RTR SET Environment /NODE=FE,FETRBE,NFE FRONTEND=frontend-list Nofrontend D Unregister Resource Manager Unregister RM Creating Monitor Pictures Table A-1 Information Classes Interactive Deﬁnition of a Monitor Picture Example A-1 Interactive Picture Deﬁnition Substitution Symbols Table A-2 Substitution symbolsArithmetic Expressions and Operators Test Picture AT Some Data Item Other Data Item Table A-3 Arithmetic Operators in Display Commands Example A-2 Arithmetic Operators Examples Aggregation of Data Items Some output has been omitted for clarityPage Shadow Events Automatic FeaturesPrimary and Secondary Roles Server Shadowing and Recovery Automatic Features RTR Journal System Server Shadowing and Recovery RTR Journal System Shadow Site Failure and Journaling Standby for Shadows Performance Application Considerations Server Shadowing and Recovery PerformanceShadows in Action CHAN2 Server Shadowing and Recovery Application ConsiderationsServer States Server Shadowing and Recovery Server States Figure B-2 Server States Server Shadowing and Recovery Client States Client StatesRequester State Transitions CHAN3 Server Shadowing and Recovery Partition States Partition StatesPage New Qualiﬁer to Create Facility Command XA Support Microsoft DTC Support XA Support IntroductionModiﬁed RTR API RTR Open Channel 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