poor error message if bzip support not available

[shanedsnyder]

In GitLab by @shanedsnyder on Sep 24, 2015, 16:25

If you compile darshan-utils without bzip support and then try to run darshan-job-summary on a bzip'd log file, then this message is displayed:

Error: incompatible darshan file.
Error: expected version 2.01, but got BZh91AY&SY
Error: unable to read job information from log file.
Use of uninitialized value $starttime in localtime at /tmp/darshan-util/bin/darshan-job-summary.pl line 285.
This darshan log has no file records. No summary was produced.
Use of uninitialized value $jobid in concatenation (.) or string at /tmp/darshan-util/bin/darshan-job-summary.pl line 288.
    jobid:
Use of uninitialized value $uid in concatenation (.) or string at /tmp/darshan-util/bin/darshan-job-summary.pl line 289.
      uid:
Use of uninitialized value $starttime in concatenation (.) or string at /tmp/darshan-util/bin/darshan-job-summary.pl line 290.
starttime: Wed Dec 31 19:00:00 1969 ( )
Use of uninitialized value $runtime in concatenation (.) or string at /tmp/darshan-util/bin/darshan-job-summary.pl line 291.
  runtime: (seconds)
Use of uninitialized value $nprocs in concatenation (.) or string at /tmp/darshan-util/bin/darshan-job-summary.pl line 292.
   nprocs:
Use of uninitialized value $version in concatenation (.) or string at /tmp/darshan-util/bin/darshan-job-summary.pl line 293.
  version: 

The utilities should detect this gracefully (by checking magic numbers in header, for example) and provide a more helpful error message.

[shanedsnyder]

In GitLab by @shanedsnyder on Sep 24, 2015, 16:25

The configure script should probably display some information about bzip at compile time warning that the build doesn't support bzip.

[shanedsnyder]

In GitLab by @shanedsnyder on Sep 24, 2015, 16:25

The underlying problem at the darshan utility binary level has been fixed in svn. Those tools now print an error like this in this scenario:

Error: this Darshan build does not support bz2 files.
Error: please install libbz2-dev and reconfigure.
darshan_log_open() failed to open ../../../foo_bar_id246361_3-15-57751_1.darshan.bz2

Still need to check what's going on at the darshan-job-summary.pl level.

[shanedsnyder]

In GitLab by @shanedsnyder on Sep 24, 2015, 16:25

darhan-job-summary has been fixed in svn as well. The full stderr output from darshan-job-summary now looks like this:

Error: this Darshan build does not support bz2 files.
Error: please install libbz2-dev and reconfigure.
darshan_log_open() failed to open ../../../zuhone_flash3_id246361_3-15-57751_1.darshan.bz2
.darshan-parser failure:  65280 at ./darshan-job-summary.pl line 280.