Using Z Abend Investigator
- Introduction
- Real-time analysis
  - Dump suppression
  - Fault history file selection
  - Controlling the real-time analysis with options
  - JCL DD statements
  - The real-time analysis report
  - The SYSLOG summary
  - Using the program SNAP interface (HFZSNAP)
  - Invoking Z Abend Investigator from a Java try-catch block
    To capture the current Java™ state from a Java program, Z Abend Investigator can be invoked to create a history file fault entry, along with an associated MVS™ SVC dump.
  - Invoking Z Abend Investigator from Java dump events
  - Using the Z Abend Investigator Java wrapper utility
    Z Abend Investigator Java wrapper utility wraps a callable Java application in a try-catch block by using the FA Java class.
  - Using the Z Abend Investigator JVMTI Agent
    Z Abend Investigator provides a JVMTI (JVM Tool Interface) agent. The agent runs inside a Java™ Virtual Machine (JVM) and can inspect the state of the running Java application.
  - Dump registration processing
  - Real-time exclusion processing
  - Recovery fault recording
  - Using SLIP,COMP=0C4 with Z Abend Investigator
  - Extended minidump data set (XDUMP)
  - Abend traps can prevent fault analysis
  - Capturing and displaying the abending job JCL
    When the JCLcapture option is in effect during real-time processing, Z Abend Investigator attempts to obtain the JCL and save it in the fault entry. This feature is available with JES2 only.
- The Z Abend Investigator ISPF interface
- Performing batch reanalysis
- Performing interactive reanalysis
- Performing CICS system abend dump analysis
- Formatting a CICS auxiliary trace data set
- Performing Java analysis
- The Z Abend Investigator report

Extended minidump data set (XDUMP)

You can enable Z Abend Investigator to allocate an extended minidump (XDUMP) data set and associate it with a history file fault-entry. An XDUMP data set is designed to contain:

64-bit storage pages
Application storage that is not directly involved with essential aspects of the analysis, such as program linkage or the point of failure

Z Abend Investigator requires an XDUMP data set to save 64-bit storage pages and associate them with a fault entry. 64-bit storage pages are not included in a minidump.

For 24-bit and 31-bit applications, an XDUMP data set can provide relief from re-analysis storage constraints and reduce the likelihood of minidump suppression when the MaxMinidumpPages value is exceeded. (See MaxMinidumpPages.)

To enable Z Abend Investigator to allocate an XDUMP data set, specify a valid data set name pattern in the XDUMPDSN setting of the HFZOPTLM configuration-options module. See Specifying the extended minidump data set name pattern (XDUMPDSN). Z Abend Investigator allocates the data set with RECFM=FBS LRECL=4096 and uses the access authorization mechanism described in Managing XDUMP data set access. If XDUMP data set allocation fails, Z Abend Investigator issues message HFZ0184W.

An XDUMP data set is automatically deleted when its associated fault entry is deleted.