Hi Andy,

On 03/16/2014 08:24 PM, Andrew Hanushevsky wrote:
> I have created a git repo in /u/sf/abh/xssi/xrootd (in AFS space) that
> contains the Scalable Service Interface (XrdSsi). In fact,
> /u/sf/abh/xssi/xrootd/src/XrdSsi contains all of the code for client- and
> server-side services. You can clone this repo and play. It is based on the
> xrootd that resides at git head in the github repo.
It sounds like we should spend a bit of time porting to the latest 
xrootd, as a preparation step.

> Working examples on how to use the services can be found in
> /u/sf/abh/xfix/test where source files starting with XrdSsiCl show how to
> implement client-side services while files starting with XrdSsiSv show how
> to implement server-side services. The mkcl and mksv scripts build the
> client and server examples, respectively.
I think you moved these to ~abh/xssi/test , because ~abh/xfix doesn't 
seem to have those files.
Anyway, I did the basic cmake/make sequence and got an error:

[ 81%] Building CXX object 
src/CMakeFiles/XrdSsi.dir/XrdSsi/XrdSsiFileReq.cc.o
cc1plus: warnings being treated as errors
/usr/local/home/danielw/xssi/xrootdNew/src/XrdSsi/XrdSsiFileReq.cc: In 
member function ‘XrdSfsXferSize XrdSsiFileReq::readStrmP(XrdSsiStream*, 
char*, XrdSfsXferSize)’:
/usr/local/home/danielw/xssi/xrootdNew/src/XrdSsi/XrdSsiFileReq.cc:525: 
error: ‘dlen’ may be used uninitialized in this function
make[2]: *** [src/CMakeFiles/XrdSsi.dir/XrdSsi/XrdSsiFileReq.cc.o] Error 1

I think the compiler got confused, because it looks like dlen is either 
ignored or assigned-to in that function, but I'll hack an initializer in 
for now and let you deal with it.

> To actually load and use the server-side service, you must build a shared
> library and use the following directives in the xrootd config file:
I think I got this working on a SLAC machine, but I couldn't get it 
working at NCSA. Do you have an account on 
lsst-dbdev1.ncsa.illinois.edu? Would you try it there? I got:

140321 17:40:42 21911 XrdOpen: Unable to create socket for port 1094; 
address family not supported by protocol

with a blank config. Oddly enough, the older xrootd works fine, and can 
attach to 1094, and so can an example python http server be told to 
listen to 1094 just fine.

> Please let me know of any problems.
I haven't tried anything yet, other than get an environment setup, but 
I'll start playing with the code.

-Daniel

########################################################################
Use REPLY-ALL to reply to list

To unsubscribe from the QSERV-L list, click the following link:
https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=QSERV-L&A=1