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[Ganglia-developers] announcement
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From: Matt M. <ma...@cs...> - 2005-02-01 20:07:59
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guys-
can you check over this first draft of an announcement and make comments?
i've tried to crystalize most of the cool new things that ganglia 3.0.0
can do that 2.5.x couldn't.
it important to me to give everyone credit for the work they've done.
if you did something and i haven't put your name in the list.. please
don't take offense. just email me and i'll add it along with an apology. :)
we've worked really hard and this and i'm happy that we're almost there.
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/____/ Distributed Monitoring System
The Ganglia Development Team is pleased to announce the release of
ganglia 3.0.0.
The features and fixes of this release include:
Windows Support
Ganglia now runs on Windows. There is support for all standard
metrics except for disk_free, disk_total, max_part_used and
cpu_num (support will be added in future releases).
We have also created a windows installer which allows you to
easily add the ganglia monitoring service to any Windows
NT/2000/XP machine.
Currently, there is no support for multicast on windows but
this will be added in the future.
Unicast Support
Ganglia now allows you to send status messages over unicast
routes and not only multicast channels. This capability gives
you greater flexibility in building your monitoring overlay
and allows ganglia to run on networks that are not
multicast-enabled.
Moreover, you can specify as many unicast and multicast
channels as you like. Whenever a message is sent each and
every channel will receive the message. This feature gives you
much more power in grouping machines.
Apache Portable Runtime library
The Apache Portable Runtime (APR) library is the library
underlying the Apache web server which provide memory pools,
networking io, hash tables, arrays in a very portable manner.
APR now serves as the heart of the new ganglia monitoring
daemon to expand portablility, improve reliability and provide
new features like IPv6 address support.
More powerful and flexible configuration
The configuration file for "gmond" has changed. This change
was necessary to provide you with a more flexible and powerful
framework in which to configure gmond. There is a man page for
gmond.conf (see man gmond.conf) which explains the new format.
To convert an old 2.5.x configuration file to the new format
simply run
% gmond --convert old.conf > new.conf
This new format allows you to specify multiple unicast and
multicast channels to send and receive monitoring information,
provides much more flexible access control lists, and allows
you the power to specify exactly what metric you want to
collect on each machine.
More powerful Access Control mechanism
In the old 2.5.x world, the only access control mechanism
available was a list of trusted_hosts.
Ganglia 3.0.0 supports very elaborate access control lists
that allow you to specify an ip and mask (for filtering
subnets) and outline the default policy (see man gmond.conf
for details).
RPM names were renamed on Linux
The RPM names have been renamed to make them simpler
ganglia-monitor-core-gmond => ganglia-gmond
ganglia-monitor-core-gmetad => ganglia-gmetad
ganglia-monitor-core-lib => ganglia-devel
ganglia-webfrontend => ganglia-web
Major cleanup of ganglia-devel
Lots of unneccessary headers where removed from libganglia and
a ganglia-config script was added for application that link
against ganglia (see ganglia-config --help for details).
ganglia-devel now installs only the following files
/usr/bin/ganglia-config
/usr/include/ganglia.h
/usr/lib/libganglia.a
/usr/lib/libganglia.la
/usr/lib/libganglia.so
Fixed bug that required Solaris systems to run in debug mode
Gmond wasn't properly daemonizing on certain Solaris systems
requiring that it be run in debug_mode with the output
redirected to "/dev/null". This bug no longer exists.
Fixed a memory leak on FreeBSD
Fix a memory leak in find_disk_space() as reported by Glen
Beane. - Overhaul makenetvfslist() a bit to fix a leak in low
memory situations, reduce duplicated code, and streamline
error handling. - Fix a few compiler warnings.
All metric collection functions are in a standalone library
All the metric code has been moved to ./srclib/libmetrics in
the ganglia distribution. Special Thanks to Martin Knoblauch
for his hard work in cleaning up the code.
Darwin metric collection improved
Darwin now supports mem_total and has better process
accounting. Special thanks to Sebastian Hagedorn, Joshua
Durham, Eric Wages and Brian Peterson for their work on MacOS
X.
HPUX multiprocessor hosts now report correct load_one, load_five,
load_fifteen
Who did this? I'm can't trace it.
Potential memory leak fixed in gmetad
Marcelo Veiga Neves determined how a memory leak was possible
for metrics sent via gmetric. Federico Sacerdoti applied a fix
to prevent any leaks.
All web scripts are in the ./web directory of the distribution now
The PHP web scripts have been incorporated into the main
ganglia distribution. Minor bug fixed added by Ramon Bastiaans
and Jason Smith.
All ganglia communication protocols are defined in
./lib/protocol.x
To help in integrating ganglia communications into other
applications, all communcation protocols are defined in
./lib/protocol.x. This XDR description file can be parsed by
rpcgen, for example, to build XDR code for sending and
receiving status messages.
Added a --foreground flag to gmond
Allows you to force gmond to run in the foreground.
Support for Windows has been added
Special thanks to Carlo Marcelo Arenas Belon for providing
metric code which makes native windows calls to collect the
majority of metrics.
Gmetad on Solaris bug fixed
David Wood fixed a bug in creating directories on Solaris.
thanks!
-matt
--
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They that can give up essential liberty to obtain a little
temporary safety deserve neither liberty nor safety.
--Benjamin Franklin, Historical Review of Pennsylvania, 1759
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