Commit d7c2e81c authored by Shane Snyder's avatar Shane Snyder

small darshan-runtime documentation changes

parent 92ef4cdd
...@@ -483,20 +483,17 @@ runtime environment variables] are equally applicable to both versions. ...@@ -483,20 +483,17 @@ runtime environment variables] are equally applicable to both versions.
However, we do provide some suggestions and expectations for system administrators to keep in However, we do provide some suggestions and expectations for system administrators to keep in
mind when upgrading to Darshan 3.x: mind when upgrading to Darshan 3.x:
* Log file compatibility was broken in the upgrade, and thus 3.x log utilities do not * Darshan 2.x and Darshan 3.x produce incompatible log file formats
work directly with logs generated by 2.x versions of Darshan (and vice versa). ** log files named *.darshan.gz or *.darshan.bz2: Darshan 2.x format
- There is currently no tool for converting 2.x logs into the 3.x log format. ** log files named *.darshan: Darshan 3.x format
- The `darshan-logutils` library will provide error messages to indicate whether a given *** a field in the log file header indicates underlying compression method in 3.x logs
** There is currently no tool for converting 2.x logs into the 3.x log format.
** The `darshan-logutils` library will provide error messages to indicate whether a given
log file is incompatible with the correspnonding library version. log file is incompatible with the correspnonding library version.
* The darshan log file extension has been changed from `.darshan.gz` (or `.darshan.bz2` for
log files converted to use bzip2 compression) to `.darshan`.
- A field in the Darshan log header is used to indicate whether a log is compressed using
libz or bzip2 compression.
* We encourage administrators to use the same log file directory for version 3.x as had been * We encourage administrators to use the same log file directory for version 3.x as had been
used for version 2.x. used for version 2.x.
- Within this directory, the determination on which set of log utilities (version 2.x ** Within this directory, the determination on which set of log utilities (version 2.x
or version 3.x) to use can be based on the file extension for a given log (as explained or version 3.x) to use can be based on the file extension for a given log (as explained
above). above).
......
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