LDMS Release Notes

This website contains archival information. For updates, see https://github.com/ovis-hpc/ovis-wiki/wiki

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LDMS Releases and Release Notes also available at github.com/ovis-hpc
See usage examples for samplers and stores at LDMS FAQ. Configuration and usage information can be also be found in the man pages.

Version Info:

v2.4.2 First available 05.22.2015
TOSS version to be released imminently
NOTE: starting with this release, release notes to be found on github site only and no longer included here
Available at github.com/ovis-hpc

Version Info:

New Features (primarily a bug fix release):

Log level tag accuracy improved. -q DEBUG vs -q INFO vs -q ERROR vs -q QUIET now produce significantly different volumes of information.
Logging data from variable core count systems (hyperthread or downed cores) now supported by procstatutil2 plugin with ‘maxcpu’ argument; see ‘man Plugin_procstatutil2’.
- Additional man page and test driver for procstatutil2 are included.
More informative errors when data set mismatches are detected due to hardware variations.
IB sampler reenabled in the default TOSS build, but still disabled for desktop.
Potential buffer overflow in ldmsctl fixed.

WARNING:

store_csv output is now column ordered in the sequence metrics are registered by the sampler plugins rather than reversed.

Version Info:

New Features:

Log levels. Dynamic change of logging levels enabled via ldmsctl.
- NOTE: -q flag previously denoting quiet (no) logging is now used to indicate the log level. If upgrading from a previous version and you were using -q before, update it to -q QUIET for this version.
Cray Aries supported in the UGNI transport.
In UGNI transport, user configurable optional check of node state via rya before initiating communications.
cray_system_sampler refactored into: cray_gemini_r_sampler, cray_gemini_d_sampler, and cray_aries_r_sampler.
GPU metrics available in the cray_gemini_r/d_sampler.
Subgroups within the cray_xxx_samplers can be selected on/off in the configuration step.
store_csv and store_derived_csv can be configured to manage rollover of their output files.
IB sampler (w/ associated includes) no longer in the default build (i.e., –enable-sysclassib).
New set of RHEL init scripts supporting (lib)genders for cluster deployment.
Misc internal updates.

Notes:

This version is INCOMPATIBLE with v2.2.0 and previous. Please update the code on both your samplers and aggregators.
As in the previous release, libraries are built into both <installdir>/lib(64) and in <installdir>/lib(64)/ovis-ldms. If upgrading from a older versions, you may have to update your LD_LIBRARY_PATH, LDMS_PLUGIN_PATH, etc in your scripts accordingly.

Version Info:

New Features:

RPM Packaging
Authentication
example init scripts
man pages
new version reporting flags for ldmsd, ldmsctl, and ldmsctl querying a remote ldmds
misc internal updates

Notes:

This version is INCOMPATIBLE with any previous releases. Please update the code on both your samplers and aggregators.

All versions below are backwards compatible for samplers and aggregators:

SHA: 02b34b4
FIX: store_derived_csv.c: fix erroneous return code from parsing config file introduced in 7ed12ee. Would result in no data nor header output.

SHA: 7ed12ee1d47d5
Additional packaging (RPM) support
Change to cray_system_sampler alternate calculation for current_freemem (service nodes)