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Changelog

Newest updates are at the top of this file.

Jul 23 2020 - v5.1.0

  • Update for MQ 9.2.0
  • mqmetric - Add explicit client configuration options
  • mqmetric - Add counter of how many resource publicatins read per scrape

June 1 2020 - v5.0.0

  • Migration for Go modules (requires new major number) (#138)
  • ibmmq - Add all string mapping functions from cmqstrc (#142)
  • ibmmq - Add AIX platform header
  • mqmetric - Permit selection of which statistics to gather for STATQ (ibm-messaging/mq-metric-samples#34)
  • mqmetric - Do not try to subscribe to application resource statistics (STATAPP) for now
  • mqmetric - Add QFile usage status available from MQ 9.1.5

Apr 02 2020 - v4.1.4

  • Update for MQ 9.1.5
  • ibmmq - Add message and header compression for MQCD (#137)
  • ibmmq - Set endianness just once (#140)
  • mqmetric - Add better diagnostics when running out of object handles
  • mqmetric - Make sure strings don't include embedded nulls

January 09 2020 - v4.1.3

December 05 2019 - v4.1.2

  • Update for MQ 9.1.4 - No new base API function introduced
  • Add amqsgbr sample for browse option
  • ibmmq - Add qmgr variant of the CB function for event handlers (#128)
  • mqmetric - Add MaxChannels/MaxActiveChannels for z/OS (#129)
  • mqmetric - Add MaxInst/MaxInst for SVRCONN channels (ibm-messaging/mq-metric-samples#21)

October 7 2019 - v4.1.1

  • ibmmq - Enable use of Context in MQPMO structure (#122)
  • ibmmq - Remove unusable fields referring to Distribution List structures

August 20 2019 - v4.1.0

  • Update Docker build scripts for newer Go compiler level
  • mqmetric - Issue warning if trying to monitor queues with names containing '/'

August 2 2019 - unpublished

  • ibmmq - Add new verb GetSlice to mirror Get() but which returns ready-sized buffer (#110)
    • See updated sample amqsget.go
  • Some comment tidying up. Make CMQC constants constant.

July 30 2019 - v4.0.10

  • ibmmq - Add error checking to some structure fields (#111)

July 22 2019 - v4.0.9

  • mqmetric - Support RESET QSTATS on z/OS queue manager
  • mqmetric - Add a Logger class to enable debug output
  • mqmetric - Improve some error reports

July 11 2019 - v4.0.8

  • Update for MQ 9.1.3 - No new API function introduced
  • mqmetric - Fix leak in subscriptions after rediscovery
  • mqmetric - Add USAGE as a queue label for selection by xmitq

June 25 2019 - v4.0.7

  • mqmetric - Allow exclusion patterns for queue names (but not other object types)
    • Use "!" as prefix to a simple pattern in the list of monitored queues
    • For example, "APP.,S,!SYSTEM.*"
  • mqmetric - Enable re-expansion of monitored queue wildcards while still monitoring
    • See Prometheus monitor sample for configuration
  • mqmetric - Added batch size and xmitq time averages to channel metrics
  • mqmetric - Enable use of z/OS DISPLAY USAGE for pageset/bufferpool data

May 31 2019 - v4.0.6

  • mqmetric - Allow limited monitoring of V8 Distributed platforms
    • Set ibmmq.usePublications to false to enable in monitor programs #104
  • mqmetric - Added queue_attribute_max_depth to permit %full calculation
    • Set ibmmq.useStatus to true to enable in monitor programs #105
  • samples - Correct use of the new form of the Inq() verb

April 23 2019

  • Fixed memory leak in InqMP
  • mqmetric - Added ability to set a timezone offset
  • mqmetric - Added fields from SBSTATUS

April 03 2019

  • mqmetric - Added last put/get time metric for queues
  • mqmetric - Added last msg time metric for channels
  • mqmetric - Added fields from QMSTATUS and TPSTATUS

April 1 2019

  • Added scripts to compile samples inside a container

March 26 2019 - v4.0.2

  • BREAKING API: Add hConn to callback function
  • Callbacks not setting hConn correctly (#93)

March 20 2019 - v4.0.0

  • Update for MQ 9.1.2 - ApplName now settable during Connect
  • BREAKING API: deprecated Inq()/MQINQ implementation replaced.
  • Fixes to callback functions for EVENT processing
  • mqmetric - Improve handling of z/OS channel status where multiple instances of the same name
  • mqmetric - More accurate testing of model queue default maxdepth for status replies
  • mqmetric - Was ignoring an error in subscription processing

January 24 2019

  • Deal with callback functions being called unexpectedly (#75)

January 2019

  • mqmetric - Add some configuration validation
  • mqmetric - Make it possible to use CAPEXPRY for statistics subscriptions

December 2018 - v3.3.0

  • All relevant API calls now automatically set FAIL_IF_QUIESCING
  • Samples updated to use "defer" instead of just suggesting it
  • Add support for MQCB/MQCTL callback functions
  • Add support for MQBEGIN transaction management
  • Add Dead Letter Header parser

November 2018 - v3.2.0

  • Added GetPlatform to mqmetric so it can be used as a label/tag in collectors
  • Added sample programs demonstrating specific operations such as put/get of message
  • Fixed conversion of some C strings into Go strings
  • Update MQI header files for MQ V9.1.1 and give more platform variations
  • Add support for MQSTAT and MQSUBRQ functions
  • Add support and sample for Message Property functions
  • Add InqMap as alternative (simpler) MQINQ operation. Inq() should be considered deprecated
  • Add support for MQSET function
  • Add discovery of translated versions of the mqmetric descriptions

November 2018 - v3.1.0

  • Added functions to mqmetric to issue DISPLAY QSTATUS for additional stats
  • Added z/OS capability for minimal status

October 2018

  • Allow compilation against MQ v8

October 2018 - v3.0.0

  • Added functions to the mqmetric package to assist with collecting channel status
  • Better handle truncated messages when listing the queues that match a pattern

October 2018

  • Corrected heuristic for generating metric names

August 2018

  • Added V9.1 constant definitions
  • Updated build comments

July 2018 - v2.0.0

  • Corrected package imports
  • Formatted go code with go fmt
  • Rearranged this file
  • Removed logging from golang package mqmetric
  • Moved samples to a separate repository
  • Added build scripts for ibmmq and mqmetric packages and ibmmq samples
  • Added unit tests for ibmmq and mqmetric packages

March 2018 - v1.0.0

  • Added V9.0.5 constant definitions
  • Changed #cgo directives for Windows now the compiler supports standard path names
  • Added mechanism to set MQ userid and password for Prometheus monitor
  • Released v1.0.0 of this repository for use with golang dependency management tools

October 2017

  • Added V9.0.4 constant definitions - now generated from original MQ source code
  • Added MQSC script to show how to redefine event queues for pub/sub
  • Prometheus collector has new parameter to override the first component of the metric name
  • Prometheus collector can now process channel-level statistics

18 May 2017

  • Added the V9.0.3 constant definitions.
  • Reinstated 64-bit structure "length" fields in cmqc.go after fixing a bug in the base product C source code generator.

25 Mar 2017

  • Added the metaPrefix option to the Prometheus monitor. This allows selection of non-default resources such as the MQ Bridge for Salesforce included in MQ 9.0.2.

15 Feb 2017

  • API BREAKING CHANGE: The MQI verbs have been changed to return a single error indicator instead of two separate values. See mqitest.go for examples of how MQRC/MQCC codes can now be tested and extracted. This change makes the MQI implementation a bit more natural for Go environments.

10 Jan 2017

  • Added support for the MQCD and MQSCO structures to allow programmable client connectivity, without requiring a CCDT. See the clientconn sample program for an example of using the MQCD.
  • Moved sample programs into subdirectory

14 Dec 2016

  • Minor updates to this README for formatting
  • Removed xxx_CURRENT_LENGTH definitions from cmqc

07 Nov 2016

  • Added a collector that prints metrics in a simple JSON format. See the README for more details.
  • Fixed bug where freespace metrics were showing as non-integer bytes, not percentages

17 Oct 2016

  • Added some Windows support. An example batch file is included in the mq_influx directory; changes would be needed to the MQSC script to call it. The other monitor programs can be supported with similar modifications.
  • Added a "getting started" section to this README.

23 Aug 2016

  • Added a collector for Amazon AWS CloudWatch monitoring. See the README for more details.

12 Aug 2016

  • Added a OpenTSDB monitor. See the README for more details.
  • Added a Collectd monitor. See the README for more details.
  • Added MQI MQCNO/MQCSP structures to support client connections and password authentication with MQCONNX.
  • Allow client-mode connections from the monitor programs
  • Added Grafana dashboards for the different monitors to show how to query them
  • Changed database password mechanism so that "exec" maintains the PID for MQ services

04 Aug 2016

  • Added a monitor command for exporting MQ data to InfluxDB. See the README for more details
  • Restructured the monitoring code to put common material in the mqmetric package, called from the Influx and Prometheus monitors.

25 Jul 2016

  • Added functions to handle basic PCF creation and parsing
  • Added a monitor command for exporting MQ V9 queue manager data to Prometheus. See the README for more details

18 Jul 2016

  • Changed structures so that most applications will not need to use cgo to imbed the MQ C headers
    • Go programs will now use int32 where C programs use MQLONG
    • Use of message handles, distribution lists require cgo for now
  • Package ibmmq now includes the numeric #defines as a Go file, cmqc.go, for easier use
  • Removed "src/" prefix from tree in github repo
  • Removed need for buffer length parm on Put/Put1
  • Updated comments
  • Added MQINQ
  • Added MQItoString function for some maps of values to constant names

08 Jul 2016

  • Initial release