European DataGrid - Fabric Monitoring

Release notes


Latest version available is 2.5.4

EDG fmon 2.5
2nd December 2003

New features:
  • Active checking of sensors health possible (new internal metric MSA.SensorCheck).
  • Sampling on demand: external processes can request the sampling of a metric at a given time using a pipe.
Modifications:
  • Behavior of control scripts updated for more flexibility: 'reload' restart daemon only if already running, 'restart' restart daemon even if not running.
  • Agent-sensor protocol updated: new CHK command to verify sensor status. Sensors that do not support this feature should be configured as such (see documentation).

EDG fmon 2.4.19
27th October 2003

New features:
  • New control scripts with homogenous names.
  • Shared library for monitoring repository.
  • New simplified API (MRs_api) to access monitoring repository. With wrappers to perl, php, tcl included in source package.
Modifications:
  • Control scripts changed name: edg-fmon-agent and edg-fmon-server now used. Same name in /etc/rc.d/init.d and /opt/edg/etc/init.d/.

EDG fmon 2.4.11
20th August 2003

New features:
  • New tool edg-fmon-cleanspool can remove older data in repository.
  • New metric serviceStatus to check services status (chkconfig).
  • Smoothing of metrics: MSA can be configured to discard samples if there has not been a big sample value change since the last one stored. This can be used to reduce the data rate on the server while keeping an accurate track of changes in system behaviour, with high sampling rates.

EDG fmon 2.4.7
17th June 2003

New features:
  • New metric DiskStat in sensor LinuxProc. It gives IO information per disk, instead of per partition as with diskIO metric.
  • libfmon-sensor.a and libfmon-repository.a are now distributed in the rpm.

EDG fmon 2.4.5
13th June 2003

New features:
  • Added a metric to dump a file each time it is sampled.
Modifications:
  • Interfaces documentation updated (no protocol change), and external RPM package created (edg-fabricMonitoring-api).
  • Tutorial updated.
  • The subscription interface for MSA is activated only if environment variable MR_SOAP_PORT is explicitely defined.

EDG fmon 2.4.3
2nd May 2003

Modifications:
  • File have been renamed and relocated to comply with edg package layout.
  • Control scripts have been enhanced and simplified. Configuration is now easier.
Foreseen developments:
  • Documentation update according to new file names. The old references are kept for the time being.

EDG fmon 2.2.6
29th April 2003

New features:
  • Every transport layer of the MSA can be configured to filter metrics. It allows to restrict the set of metrics for certain servers in case of multiple destinations.
  • Auto loading of MSA configuration file when timestamps changes can be disabled (see MSA options).
  • TCP transport is now available.
Modifications:
  • DiskIO metric in sensorLinuxProc now outputs one sample per partition.
  • Installed files location has been updated.
Transparent improvements:
  • MSA better handles sensor pipe full issues (appearing especially on slow machines just after initialization of a large number of metrics). Warnings are logged, and messages to sensors not truncated.

EDG fmon 2.2.5
19th February 2002


EDG fmon 2.2.4
12th February 2002

New features:
  • Monitoring Repository can use an Oracle database (documentation)..
  • Multiple transport possible : MSA can send up to five servers.
  • A tutorial is available.
  • The executeScript metric has been added to sensorSystemCheck.
  • Each metric can be configured to use a specific node identifier if needed.
Transparent changes:
  • SOAP layer updated. WSDL definition available.
  • TCP transport cache redesigned (but TCP still under development).

EDG fmon 2.2.2
3rd October 2002
  • Multithreaded server.
  • Subscription mechanism to metrics on local/central repositories.
  • New transport layer (TCP based). Under development.