Middleware News

How to configure UNIX and Linux systems for WebSphere MQ Problem(Abstract) You are planning to install or upgrade a WebSphere MQ server on a UNIX or Linux system and need to know how to tune the operating system parameters, including kernel parameters related to inter-process communication (IPC) resources like shared memory and semaphores. Cause If you do not configure your operating system parameters properly, the WebSphere MQ server may exhaust system resources when you process your production workload. Depending on the resource which was exhausted, WebSphere MQ could return an error to the application like MQRC_RESOURCE_PROBLEM (2012), write a message to its error logs, create FDC files in the /var/mqm/errors directory, or even terminate. Resolving the problem IBM Recommendations Using the mqconfig Script Operating System Notes IPC Tuning Parameters Older Version for WebSphere MQ 6.0 and 5.3 IBM Recommendations IBM recommends default values in...

Requirements for Remote Administration using the WebSphere MQ Explorer - Middleware News Ensure that you have satisfied the following requirements before trying to use the WebSphere MQ Explorer to do remote administration. Verify that: The WebSphere MQ server and client is installed on the local and the remote machine. A command server is running for every queue manager. A TCP/IP listener exists for every queue manager. This can be the WebSphere MQ listener or the inetd daemon as appropriate for your operating system environment. The server-connection channel, called SYSTEM.ADMIN.SVRCONN, exists on every remote queue manager. This channel is mandatory for every remote queue manager being administered. Create the channel using the following MQSC command: DEFINE CHANNEL(SYSTEM.ADMIN.SVRCONN) CHLTYPE(SVRCONN) . The userID of the initiator must be a member of the "mqm" group on the local and remote machine. The model queue SYSTEM.MQEXPLORER.REPLY.MODEL m...

Constants List of all the constants MQ_* (String Lengths) MQACH_* (API exit chain area header structure) MQACT_* (Accounting Token) MQACTP_* (Action) MQACTT_* (Accounting Token Types) MQADOPT_* (Adopt New MCA Checks) MQAIR_* (Authentication information record structure) MQAIT_* (Authentication Information Type) MQAS_* (Command format Asynchronous State Values) MQAT_* (Put Application Types) MQAUTH_* (Command format Authority Values) MQAUTHOPT_* (Command format Authority Options) MQAXC_* (API exit context structure) MQAXP_* (API exit parameter structure) MQBA_* (Byte Attribute Selectors) MQBACF_* (Command format Byte Parameter Types) MQBL_* (Buffer Length for mqAddString and mqSetString) MQBMHO_* (Buffer to message handle options structure) MQBND_* (Default Bindings) MQBO_* (Begin options structure) MQBT_* (Command format Bridge Types) MQCA_* (Character Attribute Selectors) MQCACF_* (Command format Character Parameter Types) MQCACH_*...

MQ (String Lengths) MQ_ABEND_CODE_LENGTH 4 X'00000004' MQ_ACCOUNTING_TOKEN_LENGTH 32 X'00000020' MQ_APPL_IDENTITY_DATA_LENGTH 32 X'00000020' MQ_APPL_NAME_LENGTH 28 X'0000001C' MQ_APPL_ORIGIN_DATA_LENGTH 4 X'00000004' MQ_APPL_TAG_LENGTH 28 X'0000001C' MQ_ARM_SUFFIX_LENGTH 2 X'00000002' MQ_ATTENTION_ID_LENGTH 4 X'00000004' MQ_AUTH_INFO_CONN_NAME_LENGTH 264 X'00000108' MQ_AUTH_INFO_DESC_LENGTH 64 X'00000040' MQ_AUTH_INFO_NAME_LENGTH 48 X'00000030' MQ_AUTH_INFO_OCSP_URL_LENGTH 256 X'00000100' MQ_AUTHENTICATOR_LENGTH 8 X'00000008' MQ_AUTO_REORG_CATALOG_LENGTH 44 X'0000002C' MQ_AUTO_REORG_TIME_LENGTH 4 X'00000004' MQ_BATCH_INTERFACE_ID_LENGTH 8 X'00000008' MQ_BRIDGE_NAME_LENGTH 24 X'00000018' MQ_CANCEL_CODE_LENGTH 4 X'00000004' MQ_CF_STRUC_DESC_LENGTH 64 X'000000...