>>> On 8/24/2007 at 5:32 PM, in message <[EMAIL PROTECTED]>, "Bernard Li" <[EMAIL PROTECTED]> wrote: > 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
I haven't looked at this code yet, but it sounds like something that should be using the APR API's rather than native API's. That should solve the problem without having to do any kind of platform special stuff. Brad ------------------------------------------------------------------------- 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
