On 08/29/13 13:58, Alja Mrak Tadel wrote:
> Hi Brian,
>
> I have disable this. I'm running tests with this change.
Just to confirm, the proxy server is now using only one connection to
the origin.
Alja
>
> On 08/29/13 12:48, Brian Bockelman wrote:
>> Hi Alja,
>>
>> Maybe it's a dumb question - but what happens if we disable this? The
>> new XrdCl is supposed to be thread safe, so I don't see the advantage
>> of having a stream per client -- I'd prefer a stream per server.
>>
>> Brian
>>
>> On Aug 29, 2013, at 1:32 PM, Alja Mrak Tadel <[log in to unmask]> wrote:
>>
>>> Here is the backtrace:
>>>
>>> (gdb) bt
>>> #0 XrdPssSys::P2URL (retc=@0x7ffff5b4c32c, pbuff=0x7ffff5b4b320 "",
>>> pblen=4096, path=<value optimized out>, Split=0, Cgi=0x7ffff554777c
>>> "oss.lcl=1", CgiLn=9, Ident=0x66a414 ":37@xrootd-proxy", doN2N=1) at
>>> /home/alja/xrd/newcl/xrootd-src/src/XrdPss/XrdPss.cc:893
>>> #1 0x00007ffff5544107 in XrdPssFile::Open (this=0x7fffcc001960,
>>> path=0x7fffcc000c00 "/store/user/alja/data.root", Oflag=0, Mode=384,
>>> Env=...) at /home/alja/xrd/newcl/xrootd-src/src/XrdPss/XrdPss.cc:611
>>> #2 0x00007ffff79b8d21 in XrdOfsFile::open (this=0x7fffcc001010,
>>> path=0x7fffcc000c00 "/store/user/alja/data.root", open_mode=0,
>>> Mode=384, client=0x7fffcc000980, info=0x0) at
>>> /home/alja/xrd/newcl/xrootd-src/src/XrdOfs/XrdOfs.cc:626
>>> #3 0x0000000000428fd2 in XrdXrootdProtocol::do_Open (this=<value
>>> optimized out>) at
>>> /home/alja/xrd/newcl/xrootd-src/src/XrdXrootd/XrdXrootdXeq.cc:1169
>>> #4 0x00007ffff7787529 in XrdLink::DoIt (this=0x66a358) at
>>> /home/alja/xrd/newcl/xrootd-src/src/Xrd/XrdLink.cc:396
>>> #5 0x00007ffff778b425 in XrdScheduler::Run (this=0x7ffff7ddca60) at
>>> /home/alja/xrd/newcl/xrootd-src/src/Xrd/XrdScheduler.cc:307
>>> #6 0x00007ffff778b619 in XrdStartWorking (carg=<value optimized
>>> out>) at /home/alja/xrd/newcl/xrootd-src/src/Xrd/XrdScheduler.cc:84
>>> #7 0x00007ffff77573af in XrdSysThread_Xeq (myargs=0x6494a0) at
>>> /home/alja/xrd/newcl/xrootd-src/src/XrdSys/XrdSysPthread.cc:86
>>> #8 0x00007ffff731b851 in start_thread () from /lib64/libpthread.so.0
>>> #9 0x00007ffff66c190d in clone () from /lib64/libc.so.6
>>>
>>> (gdb) n
>>> 894 if ((idP = index(idBuff, '@'))) {*(idP+1) = 0; theID =
>>> idBuff;}
>>> (gdb) l
>>> 889 // If we have an Ident then usethe fd number as the userid.
>>> This allows us to
>>> 890 // have one stream per open connection.
>>> 891 //
>>> 892 if (Ident && (Ident = index(Ident, ':')))
>>> 893 {strncpy(idBuff, Ident+1, 7); idBuff[7] = 0;
>>> 894 if ((idP = index(idBuff, '@'))) {*(idP+1) = 0; theID =
>>> idBuff;}
>>> 895 }
>>> 896
>>> 897 // Format the header into the buffer and check if we
>>> overflowed. Note that there
>>> 898 // can be a maximum of 8 substitutions, so that's how many we
>>> provide.
>>> (gdb) p idBuff
>>> $7 = "37@xroo"
>>>
>>> Alja
>>>
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>>
>
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