key checksum

Sergei Tikhomirov

Definition

Returns checksum information of a key.

Usage

$ ozone sh key checksum [-hV] [-c=<mode>]
                         <value>
Arguments
Parameter Description

value

A key URI. It can be a full URI (starts with o3://, e.g. o3://hostname:9862/vol1/bucket1/key1) or a short URI (starts with a volume name, e.g. vol1/bucket1/key1). Any missing information is obtained from the configuration files

mode

Method of combining chunk checksums. Possible values are COMPOSITE_CRC (default) and MD5MD5CRC

-h, --help

Prints out a help manual for this command

-V, --version

Prints out version information and exits

Examples

Consider a volume vol1 with a bucket bucket1 created within. That bucket contains a key key1. To print the checksum information about that key, call the following command:

$ ozone sh key checksum vol1/bucket1/key1

The output depends on the key configuration, but overall should be similar to the following:

{
  "volumeName" : "vol1",
  "bucketName" : "bucket1",
  "name" : "key1",
  "dataSize" : 14,
  "algorithm" : "COMPOSITE-CRC32",
  "checksum" : "B4B9291A"
}
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