Technical experts from the IBM Transaction Processing Facility (TPF) Development Lab share knowledge and information about the TPF product set - including z/TPF, TPF Operations Server (TOS), z/TPF Database Facility (z/TPFDF), and the TPF Toolkit.
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The TPF Lab will be closed on Monday, May 29, 2017 for the U.S. Memorial Day Holiday. The Lab will resume normal operations on Tuesday, May 30, 2017. If you have a critical problem that requires immediate assistance, please open a Severity 1 PMR/ETR and offshift support will be notified. (See Opening Problems with the Service Request Tool for more information.)
Greater than 64 KB TCP read support increases the maximum amount of data that can be received on a single TCP socket read-type function from 64 KB (65535 bytes) to 1 MB (1048576 bytes). With this enhancement, the cost of reading large TCP messages in customer applications is significantly reduced in terms of application complexity and CPU consumption in the z/TPF system. Non-SSL z/TPF WebSphere MQ sender/receiver channels, SRVCONN channels, and MQ Client are updated to use this support when reading large MQ messages. For more... [More]
User exits for MongoDB requests provides two user exits for you to control pre-request and post-request processing by using z/TPF support for MongoDB. You can use the pre-request user exit (UMON_pre_request) in the following ways: Check resources or status for each received MongoDB request. Reject requests and return the reason why the requests are rejected. Optionally disconnect the MongoDB session from the z/TPF server for MongoDB. With the post-request user exit (UMON_post_request), you can apply accounting logic based on the... [More]
IBM delivered z/TPFDF default key support for z/TPF support for MongoDB (APAR PJ44378) in April of 2017. This support provides a way for you to access z/TPFDF files that do not have default keys defined in the z/TPFDF database definition (DBDEF). Previously, the default keys could be defined only in the DBDEFs and doing so was optional. Many DBDEFs do not have default keys defined; instead, the z/TPFDF application uses a DBKEY macro or dfkey() function to specify the file organization when the application inserts or updates LRECs. With... [More]
At the TPF User's Group meeting in Scottsdale, AZ, a hot topic was held on PUT Delivery Model Changes Not all customer representatives were able to attend the session, so we are posting this call for sponsor users to participate in phone calls and/or web meetings to provide feedback on the APAR reference data, prerequisite data, tar packages and tools that we currently provide. The responses collected will be used to enhance our deliverables, possibly by reformatting information, removing information that is redundant or no... [More]
IBM TPF Toolkit 4.2 Interim Fix 10 is now available on the update site. This interim fix contains maintenance and security updates only. For more information, see the security bulletin . IBM TPF Toolkit 4.0 Interim Fix 12 is now available on the update site. This interim fix contains security updates only. For more information, see the security bulletin . Regards, The TPF Toolkit Team
As Java and REST services on z/TPF comes to users and their production equipment there needs to be a way to monitor performance. Enter the Services Report in data reduction on Linux on Z Systems. This new report is one way to monitor the culmination of relevant statistical information gathered by data collection and interpreted by the tpfdataredux tool on Linux. This report consists of two core tables. These tables are the Service Summary table and the JAM (z/TPF application manager for Java) Summary table. The Service table depicts individual... [More]
The "SSL Death Alert" vulnerability for OpenSSL affects z/TPF. With APAR PJ44539, the z/TPF system was updated with OpenSSL version 1.0.2j to address this security vulnerability. For more information about the security vulnerability, see security bulletin . For more information about APAR PJ44539, see the APEDIT .
With the availability of z/TPF support for Java™ , you can now run Java applications on your z/TPF system. These applications can be structured as stand-alone applications or as service applications in Java. On the z/TPF system, stand-alone Java applications can represent drivers, utilities, server daemons or other processes and are started using the ZFILE java command. The ZFILE java command is the standard java command that is supported by the IBM runtime environment on other platforms and accepts the same set of... [More]
z/TPF WebSphere MQ includes a trace facility enhancement to diagnose problems with applications and channels, including problems with new or existing applications that use a queue or channel problems. You can choose to display the trace on the console or to write the data to tape and process offline. Using tracing to tape instead of tracing to the console can avoid flooding the console with numerous messages. Using the trace facility adds overhead to the z/TPF system; therefore, you can enable trace only on a subset of queues or... [More]
z/TPF support for MongoDB (PJ42292) introduced z/TPF to MongoDB and allowed you to access your z/TPFDF databases through a standard MongoDB interface. With z/TPF support for Java™ (PJ43892), z/TPF became Java compatible and you could run Java applications on your z/TPF system. Both of these APARs are about using commonly used interfaces, standard languages, and widely known skills, bringing those to z/TPF, and helping you unlock the data and capabilities of your z/TPF system. This article... [More]
The aparDownload and aparMerge commands in the zTPF APA R Do wnlo ad t ool s package were updated to work with download packages for the IBM® 64-bit Runtime Environment for z/TPF, Java™ Technology Edition, Version 8 . If you use these tools, download the latest copy to ensure that you can download the Java runtime tar files. In addition, the APAR data spreadsheet and CSV files that are available for download from the TPF Family Products: Maintenance... [More]
Be advised that the aparDownload command in the zTPF APAR Download tools package was updated to work with new security software that was added to the Secure FTP APAR download servers last Sunday, February 12, 2017. If you use these tools, download the latest copy to ensure that you can continue to download the APAR tar files. For additional details, see Service Bulletin 195 .
The IBM Tivoli Monitoring Agent for z/TPF V1.1.3 is available for download from the TPF Family Products: Tools web page. This version adds support for services statistics. APARs PJ44455 and PJ43892 add support for continuous data collection to collect services statistics. The data collected by the CDC_SERVICE and CDC_JAM metrics is displayed in the Services workspace in the Tivoli Enterprise Portal by the IBM Tivoli Monitoring Agent for z/TPF. For more information about APARs PJ44455 and PJ43892 , see the APEDITs.... [More]