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Hello Gerri

Thanks a lot. I tried xrdcp and I don't see any problems now.

Cheers,
   Wilko


On Tue, 28 Jun 2005, Gerardo Ganis wrote:

>
>
>   Hi Wilko,
>
>   I've found a bug in XrdClientUrlSet::ConvertDNSAlias affecting
>   the Url array when multiple aliases were available for a given
>   hostname (your case). I've fixed it in CVS. Now your command
>   runs (I think) correctly on noric04 (at least it does not segv).
>   Please try by yourself and let me know.
>
>   Gerri
>
>
> On Mon, 27 Jun 2005, Wilko Kroeger wrote:
>
> >
> > Hello
> >
> > I am using xrdcp from release 20050623-0016 and I copy a file from an
> > xrootd server to a local disk. xrdcp first contacts a redirector and then
> > gets redirected to the data server.
> >
> > I tried the following two commands
> > > xrdcp -DIDebugLevel 2 root://bbr-rdr03////store/cfg/2005/06/CfgDB-20050620T211907.root  t.root
> > > xrdcp -DIDebugLevel 2 root://bbr-rdr-a////store/cfg/2005/06/CfgDB-20050620T211907.root  t.root
> >
> > The only difference is that in the first case (bbr-rdr03) the redirector
> > name is used where as in the second case an alias is used that points to
> > the two redirectors (bbr-rdr03,bbr-rdr04) of the xrootd cluster.
> >
> > The first command works fine but the second creates a core file:
> >
> > > xrdcp -DIDebugLevel 2 root://bbr-rdr-a////store/cfg/2005/06/CfgDB-20050620T211907.root  t.root
> > .....
> > 050627 10:48:23 27025 Xrd: SocketReaderThread: Reader Thread starting.
> > 050627 10:48:23 001 Xrd: DoLogin: Logging into the server
> > [kan010.slac.stanford.edu:1094]. pid=27025 uid=wilko
> > 050627 10:48:23 001 Xrd: SendGenCommand: Sending command
> > XrdClientConn::DoLogin
> > 050627 10:48:23 001 Xrd: ReadPartialAnswer: Reading a XrdClientMessage
> > from the server [kan010.slac.stanford.edu:1094]...
> > 050627 10:48:23 001 Xrd: SendGenCommand: Got (and maybe recovered) an
> > error from kan010.slac.stanford.edu:1094
> > 050627 10:48:23 001 Xrd: SendGenCommand: Sending command Open
> > 050627 10:48:23 001 Xrd: ReadPartialAnswer: Reading a XrdClientMessage
> > from the server [kan010.slac.stanford.edu:1094]...
> > 050627 10:48:23 001 Xrd: Create: File opened succesfully.
> > Segmentation fault (core dumped)
> >
> > With gdb the core file shows:
> > #0  0x00237057 in _int_free () from /lib/tls/libc.so.6
> > (gdb) where
> > #0  0x00237057 in _int_free () from /lib/tls/libc.so.6
> > #1  0x00236048 in free () from /lib/tls/libc.so.6
> > #2  0x0808319c in ~XrdClientString (this=0x89e80b8) at XrdClientString.cc:17
> > #3  0x08059efe in ~XrdClientUrlInfo (this=0x89e80b8) at XrdClientConn.hh:89
> > #4  0x0807a716 in ~XrdClientUrlSet (this=0xbfff9170) at XrdClientUrlSet.cc:208
> > #5  0x0805cf75 in XrdClient::Open(unsigned short, unsigned short) (this=0x89e3210, mode=0, options=64) at XrdClient.cc:237
> > #6  0x08081f95 in XrdCpWorkLst::SetSrc(XrdClient**, XrdClientString, XrdClientString, bool) (this=0x89e2598, srccli=0x809a760, url=
> >       {data = 0x89e3000
> > "root://bbr-rdr-a////store/cfg/2005/06/CfgDB-20050620T211907.root", size = 64, capacity = 256}, urlopaquedata=
> >       {data = 0x89e2ef8 "", size = 0, capacity = 256}, do_recurse=false) at XrdCpWorkLst.cc:53
> > #7  0x080592cd in main (argc=5, argv=0xbfff9534) at Xrdcp.cc:802
> >
> >
> > The core file and the output of xrdcp are available in:
> > /nfs/objyserv01/objy/databases/wilko/xrootd/problems/xrdcpDebug2_20050623-0016/
> >
> > Using different debug levels I found that the transfer works for level 0
> > and 1 but fails for 2,3 and if no level is specified on the command line.
> >
> > Cheers,
> >    Wilko
> >
> >
> >
>
>