Hello,
I see an error in the Purdue xrootd logs that causes me some concern.
After a scan of the logs I see it can occur up to 100k times a day. Here
an example log entry from xrootd.log on our redirector:
170103 03:29:56 64059 Decode xrootd gave
uscms407.30510:[log in to unmask] err -2 'Too many
attempts to gain dfs read access to the
file' /store/data/Run2016G/Charmonium/AOD/23Sep2016-v1/70000/8087EC19-1496-E611-B526-008CFA0008C4.root
170103 03:29:56 64161 uscms407.30510:[log in to unmask]
XrootdResponse: sending err 3011: Too many attempts to gain dfs read
access to the file
I was thinking this could be related to the 'limit' option for cms.dfs
configuration on the redirector, but we don't have that option set which
from my understanding makes there be no limit.
Here is the cms.dfs configuration line:
cms.dfs lookup distrib mdhold 10m redirect immed
I attached our whole configuration file as well.
Any thoughts on what could be causing this error?
Thanks,
-Erik
########################################################################
Use REPLY-ALL to reply to list
To unsubscribe from the XROOTD-L list, click the following link:
https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1
# Specify which port to use
xrd.port 1094
# The export directive indicates which paths are to be exported. While the
# default is '/tmp', we indicate it anyway and add the 'stages attribute
# to allow you to start the frm_xfrd to bring in missing files into '/tmp'.
# Remove this attribute if you don't want to enable this feature.
#
all.export /store nostage
all.role server
all.role manager if xrootd.rcac.purdue.edu
all.manager xrootd.rcac.purdue.edu:3121
all.manager meta all cmsxrootd.fnal.gov+ 1213 if xrootd.rcac.purdue.edu
all.sitename T2_US_Purdue
cms.space min 2g 5g
cms.allow host xrootd.rcac.purdue.edu
cms.allow host cms*.rcac.purdue.edu
#authorization
if cms-*.rcac.purdue.edu
ofs.authorize 1
acc.authdb /etc/xrootd/Authfile
acc.audit deny grant
fi
#logging
xrootd.trace emsg login stall redirect
ofs.trace none
xrd.trace conn
cms.trace all
# Security configuration
sec.protocol /usr/lib64 gsi -certdir:/etc/grid-security/certificates -cert:/etc/grid-security/xrd/xrdcert.pem -key:/etc/grid-security/xrd/xrdkey.pem -crl:3 -authzfun:libXrdLcmaps.so -authzfunparms:--osg,--lcmapscfg,/etc/xrootd/lcmaps.cfg,--loglevel,0|useglobals -gmapopt:10 -gmapto:0 -vomsfun:/usr/lib64/libXrdSecgsiVOMS-4.so -vomsfunparms:grpopt=2
xrootd.seclib /usr/lib64/libXrdSec.so
xrootd.fslib /usr/lib64/libXrdOfs.so
ofs.osslib /usr/lib64/libXrdHdfs.so
all.adminpath /var/run/xrootd
all.pidpath /var/run/xrootd
#if cms-*.rcac.purdue.edu
# xrootd.fslib throttle default
# throttle.throttle concurrency 20
# throttle.trace ioload
#fi
cms.delay startup 10
cms.fxhold 60s
if xrootd.rcac.purdue.edu
cms.delay startup 10 qdl 30
cms.dfs lookup distrib mdhold 10m redirect immed
fi
oss.namelib /usr/lib64/libXrdCmsTfc.so file:/etc/cms/SITECONF/local/PhEDEx/storage.xml?protocol=hadoop
if exec xrootd
xrd.protocol http:1094 /usr/lib64/libXrdHttp-4.so
http.cadir /etc/grid-security/certificates
http.cert /etc/grid-security/xrd/xrdcert.pem
http.key /etc/grid-security/xrd/xrdkey.pem
http.secxtractor /usr/lib64/libXrdLcmaps.so
http.listingdeny yes
http.staticpreload http://static/robots.txt /etc/xrootd/robots.txt
http.desthttps yes
xrd.report xrootd.t2.ucsd.edu:9931 every 30s all
xrootd.monitor all auth flush 30s mbuff 1472 window 5s dest files io info user xrootd.t2.ucsd.edu:9930
fi
# The copycmd directive tells the frm_xfrd what to use to copy files into
# an exported path with the 'stage' attribute. Here we just say this will
# be '/bin/cp' to allow the frm_xfrd to actual start to show that it works.
# Here missing files are created in /tmp as zero-length files.
#
frm.xfr.copycmd /bin/cp /dev/null $PFN
# The adminpath and pidpath variables indicate where the pid and various
# IPC files should be placed
#
all.adminpath /var/spool/xrootd
all.pidpath /var/run/xrootd
########################################################################
Use REPLY-ALL to reply to list
To unsubscribe from the XROOTD-L list, click the following link:
https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1
|