Hi Mike: On 8/24/07, Mike Walker <[EMAIL PROTECTED]> wrote:
> Platform: MacOSX 10.4.10 (Intel) and will confirm same problem > monday on MacOSX 10.4.10 (powerPC) > Problem: The data from the all nodes/clusters where not being saved > (consistently and accurately) to the rdd files. In debugging this > issue, it appears the problem is at line 134 of gmetad/ > data_thread.c if(struct_poll.revents & POLLHUP). > > From web searches http://www.greenend.org.uk/rjk/2001/06/poll.html & > http://www.osxfaq.com/man/2/poll.ws & etc. it appears that the use > of POLLHUP is not universal in the definition and implementation. > For OSX it appears that the entire message (partially verified by > using ethereal) is received...even though this (POLLHUP is evaluated > to true). With the logic in the 'if' statement, the entire message > is discarded, and thus almost (if not all) data is never saved to the > rrd files and all hosts are reported either not existing or down. > > By commenting out this if statement (line 134 block), gmetad works > wonderfully. (since all data is being received) Perhaps simply checking POLLHUP is not sufficient. We might need to check something else before we discard the message -- think you can write a patch? > In searching the ganglia mailing lists, I couldn't find > anything.... is this known? or is this an issue (and thus I need to > open a bug report)? If you have searched through the bug reports and didn't see it filed already, please do: http://bugzilla.ganglia.info P.S. Was it difficult to compile this under OSX? Which version of Ganglia are you using? 3.0.4? Thanks, Bernard ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
