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NAME

ecaccess-ectrans-request - Request a new ECtrans transfer

SYNOPSIS

ecaccess-ectrans-request -version|-help|-manual

ecaccess-ectrans-request [-debug] [-gateway name] [-target file-name] [-retryCount number] [-retryFrequency frequency] [-priority priority] [-lifeTime duration] [-mailTo email] [-onSuccess] [-onFailure] [-onRetry] [-deleteSource] [-keep] [-reject|-append|-resume|-overwrite] [-maximumDuration duration] [-minimumDuration duration] [-minimumRate rate] association-name[@protocol] source

DESCRIPTION

Allow Member State users to initiate file transfers between ECMWF and Member State servers. The ECaccess Server will spool the ECMWF file specified by the source parameter in the user's ECtrans transfer queue: if the connection between the ECMWF and Member State gateways is down or if any error occurs, the file will be kept in the spool area at ECMWF and you can resume the transfer through the web interface or with the ecaccess-ectrans-restart command. If required the transfer can be retried automatically (see the -retryCount and -retryFrequency options to tailor the retry mechanism).

The -reject, -append, -resume and -overwrite options are mutually exclusive and determine what to do if there is an existing target file. The -mailTo option specifies an email address to be notified in case of a successful (option -onSuccess) and/or a failed transfer (option -onFailure).

When a request has been spooled successfully, an ectrans-id is returned immediately. The ectrans-id can be used to reference the transfer, using the web interface or with the ecaccess-ectrans-delete, ecaccess-ectrans-list or ecaccess-ectrans-restart commands.

ARGUMENTS

 

association-name[@protocol]

 

The ECtrans Association with optionaly the name of the protocol to use.

 

source

 

Name of the file at ECMWF to spool in ECtrans.

 

 

OPTIONS

 

-gateway name

 

This is the name of the ECaccess Gateway where the ECtrans Association association-name is defined. It is by default the Gateway you are connected to. In order to get the name of your current Gateway you can use the ecaccess-gateway-name command. When using the commands at ECMWF the default Gateway is always "ecaccess.ecmwf.int".

 

-target file-name

 

Defines the target file-name (default: same as source).

 

-retryCount number

 

Defines the number of retries (default: 144).

 

-retryFrequency frequency

 

Defines the frequency of retries in seconds (default: 600 seconds).

 

-priority priority

 

Defines the transmission priority 0-99 (default: 99).

 

-lifeTime duration

 

Defines the lifetime of the request (default: 7 days). The duration is specified in [w]eeks, [d]ays, [h]ours, [m]inutes or [s]econds (e.g. 1w or 2d).

 

-mailTo email

 

Defines the target email address (default: <user-id>@ecmwf.int).

 

-onSuccess

 

Allow sending a mail when the transfer is successful.

 

-onFailure

 

Allow sending a mail when the transfer has failed.

 

-onRetry

 

Allow sending a mail when the transfer is retried.

 

-deleteSource

 

Allow deleting the original source file once it is safe in the spool.

 

-keep

 

Allow keeping the request in the spool until the duration specified in the -lifeTime option has passed. By default a successful transfer is removed from the spool.

 

-reject

 

Allow failing if there is an existing target file (default).

 

-append

 

Allow appending if there is an existing target file.

 

-resume

 

Allow resuming if there is an existing target file.

 

-overwrite

 

Allow overwriting if there is an existing target file.

 

-maximumDuration duration

 

Define the maximum transfer duration. The duration is specified in [w]eeks, [d]ays, [h]ours, [m]inutes or [s]econds (e.g. 10m or 1h). A value <=0 will deactivate the feature (default: 12h).

 

-minimumDuration duration

 

Allow setting the duration before to control a transmission (e.g. for the first 10 minutes ECtrans don't try to check the transfer rate, which allow not to enforce some minimum transfer rates for very small files). The duration is specified in [w]eeks, [d]ays, [h]ours, [m]inutes or [s]econds (e.g. 30s or 10m). A value <=0 will deactivate the feature (default: 10m).

 

-minimumRate rate

 

Allow setting a minimum transfer rate for a transmission (expressed in bytes/s). This is an average value, not the transmission rate at one particular moment in time (e.g. if a big file is stuck for 5 minutes but then transmit much faster later on then it will not be interrupted as long as the overall transfer rate is above the minimum). A value <=0 will deactivate the feature (default: 10240).

 

-version

 

Display version number and exits.

 

-help

 

Print a brief help message and exits.

 

-manual

 

Prints the manual page and exits.

 

-retry count

 

Number of SSL connection retries per 5s to ECMWF. This parameter only apply to the initial SSL connection initiated by the command to the ECMWF server. It does not apply to all the subsequent requests made afteward as it is mainly targeting errors that can happen from time to time during the SSL handshake. Default is no retry.

 

-debug

 

Display the SOAP and SSL messages exchanged.

 

 

EXAMPLES

ecaccess-ectrans-request -lifeTime 2d -overwrite -onFailure -onRetry test@genericFtp ec:test.txt

Request a file transfer of the ec:test.txt file to the default gateway with the association test and the protocol genericFtp. If the target file already exists then the original file is deleted. If the transfer is retried or fail then an email is sent to the default email address (<user-id>@ecmwf.int). After 2 days the file is removed from the spool (whatever the status of the transmission is).

ecaccess-ectrans-request -minimumDuration 10m -maximumDuration 35m -minimumRate 8192 test@genericFtp ec:test.txt

After 10 minutes ECtrans will start to control the transfer rate. If after 35 minutes the file is still not transmitted or if at a certain point in time the average transmission rate is less than 8Kbytes/s then the transmission will be cancelled. If cancelled, the transmission will be retried 144 times (with a 10 minutes interval).

SEE ALSO

ecaccess-ectrans-delete, ecaccess-ectrans-list, ecaccess-ectrans-restart and ecaccess.

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