-C | --cksum
type[:value|print|source]
obtains the checksum of type (i.e. adler32, crc32,
md5 or zcrc32) from the source, computes the checksum at the destination, and
verifies that they are the same. If auto is chosen as the checksum
type, xrdcp will try to automatically infer the right checksum type based on
source/destination configuration, source file type (metalink, ZIP), and
available checksum plug-ins. If a value is specified, it is used as the
source checksum. When print is specified, the checksum at the
destination is printed but is not verified.
-d | --debug lvl
debug level: 1 (low), 2 (medium), 3 (high)
-F | --coerce
ignores locking semantics on the destination file. This
option may lead to file corruption if not properly used.
-f | --force
re-creates a file if it is already present.
-h | --help
displays usage information.
-H | --license
displays license terms and conditions.
-N | --nopbar
does not display the progress bar.
-P | --posc
requests POSC (persist-on-successful-close) processing to
create a new file. Files are automatically deleted should they not be
successfully closed.
-D | --proxy proxyaddr:proxyport
[NOT YET IMPLEMENTED]
use proxyaddr:proxyport as a SOCKS4 proxy.
Only numerical addresses are supported.
recursively copy all files starting at the given source
directory.
--retry
retry failed copy-jobs.
--server
runs as if in a server environment. Used only for
server-side third party copy support.
-s | --silent
neither produces summary information nor displays the
progress bar.
-y | --sources num
uses up to num sources to copy the file.
-S | --streams num
use num parallel data streams to do the transfer
(the main stream is in this case not used to carry out the transfer). The
maximum value is 15. The default is 0 (i.e., use only the control stream).
--tpc [delegate] first|only
copies the file from remote server to remote server using
third-party-copy protocol (i.e., data flows from server to server). The source
and destination servers must support third party copies. Additional security
restrictions may apply and may cause the copy to fail if they cannot be
satisfied. Argument 'first' tries tpc and if it fails, does a normal
copy; while 'only' fails the copy unless tpc succeeds. When
'delegate' is specified, the copy delegates the command issuer's
credentials to the target server which uses those credentials to authenticate
with the source server. Delegation is ignored if the target server is not
configured to use delegated credentials. Currently, only gsi credentials can
be delegated.
-v | --verbose
displays summary output.
-V | -version
displays version information and immediately exits.
-z | --zip file
copy given file from a ZIP archive (same as xrdcl.unzip
opaque info).
-X | --xrate rate
limits the copy speed to the specified rate.
The rate may be qualified with the letter k, m, or
g to indicate kilo, mega, or giga bytes, respectively. The option only
applies when the source or destination is local.
-X | --xrate-threshold rate
If the transfer rate drops below given threshold force
the client to use different source or if no more sources are available fail
the transfer.
-Z | --dynamic-src
file size may change during the copy
-I | --infiles fn
specifies the file that contains a list of input files
--parallel n
number of copy jobs to be run simultaneously
--allow-http
allow HTTP as source or destination protocol. Requires
the XrdClHttp client plugin
--xattr
preserve extended attributes
--notlsok
If server is too old to support TLS encryption fallback
to unencrypted communication.
--tlsnodata
In case of roots/xroots protocol, encrypt only the
control stream and leave the data streams unencrypted.
--tlsmetalink
Treat all URLs in metalink as roots/xroots.
--zip-mtln-cksum
Use the checksum available in a metalink file even if a
file is being extracted from a ZIP archive.
--rm-bad-cksum
Remove the target file if checksum verification failed
(enables also POSC semantics).
--continue
Continue copying a file from the point where the previous
copy was interrupted.
The following environment variables are supported. They apply to
xrdfs and any other application using the libXrdCl library, unless specified
otherwise. The text in the brackets is a name of the corresponding xrdcp
commandline parameter.
XRD_LOGLEVEL
Determines the amount of diagnostics that should be
printed. Valid values are: Dump, Debug, Info,
Warning, and Error.
XRD_LOGFILE
If set, the diagnostics will be printed to the specified
file instead of stderr.
XRD_LOGMASK
Determines which diagnostics topics should be printed at
all levels. It's a "|" separated list of topics. The first element
may be "All" in which case all the topics are enabled and the
subsequent elements may turn them off, or "None" in which case all
the topics are disabled and the subsequent flags may turn them on. If the
topic name is prefixed with "^", then it means that the topic should
be disabled. If the topic name is not prefixed, then it means that the topic
should be enabled.
The log mask may as well be handled for each diagnostic level
separately by setting one or more of the following variables:
XRD_LOGMASK_ERROR, XRD_LOGMASK_WARNING,
XRD_LOGMASK_INFO, XRD_LOGMASK_DEBUG, and
XRD_LOGMASK_DUMP. The default for each level is "All",
except for the Dump level, where the default is
"All|^PollerMsg". This means that, at the Dump level, all
the topics but "PollerMsg" are enabled.
Available topics: AppMsg, UtilityMsg, FileMsg, PollerMsg,
PostMasterMsg, XRootDTransportMsg, TaskMgrMsg, XRootDMsg, FileSystemMsg,
AsyncSockMsg, TlsMsg
XRD_TLSDBGLVL
Determine the debug level for the TLS component. Valid
values are: OFF, CTX, SOK, SIO, ALL and
OUT. The default value is OFF.
XRD_PARALLELEVTLOOP
The number of event loops (i.e. the number of threads
handling requests). Default number is 10.
XRD_READRECOVERY
Determines if read recovery should be enabled or disabled
(enabled by default).
XRD_WRITERECOVERY
Determines if write recovery should be enabled or
disabled (enabled by default).
XRD_OPENRECOVERY
Determines if open recovery should be enabled or disabled
for mutable (truncate or create) opens (enabled by default).
XRD_CONNECTIONWINDOW (-DIConnectionWindow)
A time window for the connection establishment. A
connection failure is declared if the connection is not established within the
time window. If a connection failure happens earlier then another connection
attempt will only be made at the beginning of the next window.
XRD_CONNECTIONRETRY (-DIConnectionRetry)
Number of connection attempts that should be made (number
of available connection windows) before declaring a permanent failure.
XRD_REQUESTTIMEOUT (-DIRequestTimeout)
Default value for the time after which an error is
declared if it was impossible to get a response to a request.
XRD_STREAMTIMEOUT (-DIStreamTimeout)
Default value for the time after which a connection error
is declared (and a recovery attempted) if there are unfulfilled requests and
there is no socket activity or a registered wait timeout.
XRD_SUBSTREAMSPERCHANNEL (-DISubStreamsPerChannel)
Number of streams per session.
XRD_TIMEOUTRESOLUTION (-DITimeoutResolution)
Resolution for the timeout events. Ie. timeout events
will be processed only every XRD_TIMEOUTRESOLUTION seconds.
XRD_STREAMERRORWINDOW (-DIStreamErrorWindow)
Time after which the permanent failure flags are cleared
out and a new connection may be attempted if needed.
XRD_RUNFORKHANDLER (-DIRunForkHandler)
Determines whether the fork handlers should be enabled,
making the API fork safe.
XRD_REDIRECTLIMIT (-DIRedirectLimit)
Maximum number of allowed redirections.
XRD_NOTAUTHORIZEDRETRYLIMIT (-dNotAuthorizedRetryLimit)
Maximum number of allowed retries at a meta-manager for
not-authorized error.
XRD_POLLERPREFERENCE (-DSPollerPreference)
A comma separated list of poller implementations in order
of preference. The default is: built-in.
XRD_CLIENTMONITOR (-DSClientMonitor)
Path to the client monitor library.
XRD_CLIENTMONITORPARAM (-DSClientMonitorParam)
Additional optional parameters that will be passed to the
monitoring object on initialization.
XRD_WORKERTHREADS (-DIWorkerThreads)
Number of threads processing user callbacks.
XRD_CPPARALLELCHUNKS (-DICPParallelChunks)
Maximum number of asynchronous requests being processed
by the xrdcp command per connected channel substream (adjusted in
real-time).
XRD_CPCHUNKSIZE (-DICPChunkSize)
Size of a single data chunk handled by xrdcp.
XRD_NETWORKSTACK (-DSNetworkStack)
The network stack that the client should use to connect
to the server. Possible values are:
IPAuto - automatically detect which IP stack to use
IPAll - use IPv6 stack (AF_INET6 sockets) and both IPv6 and
IPv4 (mapped to IPv6) addresses
IPv6 - use only IPv6 stack and addresses
IPv4 - use only IPv4 stack (AF_INET sockets) and
addresses
IPv4Mapped6 - use IPv6 stack and mapped IPv4 addresses
XRD_DATASERVERTTL (-DIDataServerTTL)
Time period after which an idle connection to a data
server should be closed.
XRD_LOADBALANCERTTL (-DILoadBalancerTTL)
Time period after which an idle connection to a manager
or a load balancer should be closed.
XRD_APPNAME (-DSAppName)
Override the application name reported to the
server.
XRD_PLUGINCONFDIR
A custom location containing client plug-in config
files.
XRD_PLUGIN
A default client plug-in to be used.
XRD_CPINITTIMEOUT (-DICPInitTimeout)
Maximum time allowed for the copy process to initialize,
ie. open the source and destination files.
XRD_CPTPCTIMEOUT (-DICPTPCTimeout)
Maximum time allowed for a third-party copy operation to
finish.
XRD_TCPKEEPALIVE (-DITCPKeepAlive)
Enable/Disable the TCP keep alive functionality
XRD_TCPKEEPALIVETIME (-DITCPKeepAliveTime)
Time between last data packet sent and the first
keepalive probe (Linux only)
XRD_TCPKEEPALIVEINTERVAL (-DITCPKeepAliveInterval)
Interval between subsequent keepalive probes (Linux
only)
XRD_TCPKEEPALIVEPROBES (-DITCPKeepProbes)
Number of unacknowledged probes before considering the
connection dead (Linux only)
XRD_METALINKPROCESSING
Enable/Disable Metalink processing (enabled by
default)
XRD_LOCALMETALINKFILE
Enable/Disable local Metalink file processing (by
convention the following URL schema has to be used:
root://localfile//path/filename.meta4) The 'localfile' semantic is now
deprecated, use file://localhost/path/filename.meta4 instead!
XRD_GLFNREDIRECTOR
The redirector will be used as a last resort if the GLFN
tag is specified in a Metalink file.
XRD_XCPBLOCKSIZE
Maximu size of a data block assigned to a single source
in case of an extreme copy transfer.
XRD_NODELAY
Disables the Nagle algorithm if set to 1 (default),
enables it if set to 0.
XRD_PREFERIPV4
If set the client tries first IPv4 address (turned off by
default).
XRD_MAXMETALINKWAIT
The maximum time in seconds a clinet can be stalled by
the server if a Metalink redirector is available (defaults to 60s).
XRD_PRESERVELOCATETRIED
If set to 1 XRootD client will preserve tried/triedrc cgi
opaque info for kXR_locate request across redirects/retries, if set to 0
XRootD client will treat kXR_locate as any other passive request.
XRD_PRESERVEXATTRS
If set to 1 (default) xrdcp will preserve file extended
attribues, if set to 0 file extended attributes won't be preserved.
XRD_NOTLSOK
If set to 1 and the server is to old to support TLS
encryption, xrdcp will fallback to unencrypted transmission although
roots/xroots protocol was used. By default set to 0.
XRD_TLSNODATA
If set to 1, in case of roots/xroots protocol only the
control stream will be encrypted, data streams will be left unencrypted. By
default set to 0.
XRD_TLSMETALINK
If set to 1 all URLs in metalink will be treated as
roots/xroots. By default set to 0.
XRD_ZIPMTLNCKSUM
If set to 1, use the checksum available in a metalink
file even if a file is being extracted from a ZIP archive. By default set to
0;
XRD_CPTIMEOUT
Timeout for a classical (not TPC) copy job. By default
set to 0 (disabled);
XRD_CLCONFDIR
User defined directory with config files (*.conf).
XRD_CLCONFFILE
User defined config file.
XRD_CPRETRY
Maximum number of times to retry failed copy-jobs
(default: 0).
XRD_CPRETRYPOLICY
Copy job retry policy, either force or retry (default:
force).
XRD_CPUSEPGWRTRD
Enable in-fly error correction of corrupted pages
(default: 1).