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Config URI format

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Stu Arnett edited this page Nov 15, 2016 · 10 revisions

Since v2.2.4, a mechanism exists that allows users to specify the complete ECS S3 client configuration in a single string by using a Config URI. A Config URI follows the standard URI spec:

<protocol>://<host>[:<port>][/path][?<param-key>=<param-value>][&<param-key>=<param-value>][...]

Here are some examples.

  • A simple S3 client config URI for ECS Test Drive.

      https://object.ecstestdrive.com?smartClient=false&useVHost=true&identity=<access-key>&secretKey=<secret-key>

  • A standard S3 client config URI for a local ECS deployment using the smart-client and unencrypted traffic.

      http://10.1.83.51:9020?identity=<access-key>&secretKey=<secret-key>

  • A standard S3 client config URI for a 3-VDC deployment using encrypted traffic and geo-pinning.

      https://10.1.100.11:9021?vdcs=10.1.100.11,10.1.100.12&vdcs=10.2.100.11,10.2.100.12&vdcs=10.3.100.11,10.3.100.12&geoPinningEnabled=true&geoReadRetryFailover=true&identity=<access-key>&secretKey=<secret-key>

The ECS S3 client config URI has the following available parameters.

  • checksumEnabled - true or false, defaults to true.
  • chunkedEncodingSize - integer number of bytes, defaults to 2MB.
  • faultInjectionRate - long integer, defaults to 0.0f (no fault injection).
  • geoPinningEnabled - true or false, defaults to false.
  • geoReadRetryFailover - true or false, defaults to false.
  • identity - any string, no default.
  • initialRetryDelay - integer number of milliseconds, defaults to 1000.
  • namespace - any string, no default.
  • port - integer, defaults to 9020 for HTTP and 9021 for HTTPS protocols, -1 otherwise. Must be specified following URI syntax, not in the query.
  • protocol - HTTP or HTTPS, case insensitive. Must be specified following URI syntax, not in the query.
  • retryBufferSize - integer number of bytes, defaults to 2MB.
  • retryEnabled - true or false, defaults to true.
  • retryLimit - integer, defaults to 3.
  • rootContext - any string. Must be set following URI syntax (as the path), not in the query.
  • secretKey - any string, no default.
  • serverClockSkew - long integer number of milliseconds, defaults to 0.
  • signMetadataSearch - true or false, defaults to true.
  • signNamespace - true or false, defaults to true.
  • smartClient - true or false, defaults to true.
  • userAgent - any string, defaults to ECS Java SDK plus version numbers and operating system information.
  • useVHost - true or false (default false).
  • vdcs - each instance is a single vdc, represented as a comma-separated list of hosts, with the first used as the name. Multiple instances are allowed. NOTE: You can also specify a single host in the URI, before the query, and that will be used as a single one-node VDC if no vdcs are specified in the query.
  • Custom config properties - passed to the HTTP client implementation, set in the query as properties.<name>=<value>. Example: to set Jersey's socket connect timeout to 50 secs: properties.com.sun.jersey.client.property.connectTimeout=50000.
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