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1. id: A string value that represents the identifier of the blocked task manager or node.
2. action: An enum value(MARK_BLOCKED or MARK_BLOCKED_AND_EVACUATE_TASKS) that represents the block action when a task manager/node is marked as blocked.
3. startTimestamp: A long value that represents the unix timestamp(milliseconds) of creating this item. 
4. endTimestamp:  A long value that represents the unix timestamp(milliseconds) at which the item should be removed. If the blocked item is permanent, this value will be Long.MAX_VALUE(9223372036854775807).
5. cause: A string value that represents the cause for blocking this task manager or node.

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1. id: A string value that specifies the identifier of the blocked task manager or node.
2. action: An enum value(MARK_BLOCKED or MARK_BLOCKED_AND_EVACUATE_TASKS) that specifies the block action when a task manager/node is marked as blocked.
3. timeout(optional): The timestamp of creating this itemA long value that specifies the timeout (milliseconds).
4. endTimestamp(optional): The timestamp A long value that specifies the unix timestamp(milliseconds) at which the item should be removed.
5. cause: The A string value that represents the cause for creating this itemblocking this task manager or node.

Note that

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only one of timeout and endTimestamp

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can be specified. If neither is specified, it means that the blocked item is permanent and will not be removed. If both are specified,

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will return error.

Remove

DELETE: http://{jm_rest_address:port}/blocklist/node/<id>

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