Selection of leader nodes in distributed data services

A method comprising:

• providing a distributed data service operative based on a plurality of nodes;
• receiving from a user a selection of a set of nodes of said plurality of nodes that are preferred as leader nodes, each of said set of nodes being identified by a corresponding unique identifier of a set of identifiers;
• and
• performing determination of a leader node, wherein said determination comprises setting a first node of said set of nodes as a leader node in said distributed data service in view of said selection by said user,
• wherein said performing is performed after said selection being received from said user, whereby said set of nodes are identified in said distributed data service prior to said performing in view of said corresponding unique identifiers.

A non-transitory machine readable storage medium storing one or more sequences of instructions, wherein execution of said one or more instructions by one or more processors contained in a system causes said system to perform the actions of:

• providing a distributed data service operative based on a plurality of nodes;
• receiving from a user a selection of a set of nodes of said plurality of nodes that are preferred as leader nodes, each of said set of nodes being identified by a corresponding unique identifier of a set of identifiers;
• and
• performing determination of a leader node, wherein said determination comprises setting a first node of said set of nodes as a leader node in said distributed data service in view of said selection by said user,
• wherein said performing is performed after said selection being received from said user, whereby said set of nodes are identified in said distributed data service prior to said performing in view of said corresponding unique identifiers.

A digital processing system comprising:

• one or more processors;
• and
• a random access memory (RAM) to store instructions, wherein said one or more processors retrieve said instructions and execute said instructions, wherein execution of said instructions causes said digital processing system to perform the actions of:
• providing a distributed data service operative based on a plurality of nodes;
• receiving from a user a selection of a set of nodes of said plurality of nodes that are preferred as leader nodes, each of said set of nodes being identified by a corresponding unique identifier of a set of identifiers;
• and
• performing determination of a leader node, wherein said determination comprises setting a first node of said set of nodes as a leader node in said distributed data service in view of said selection by said user,
• wherein said performing is performed after said selection being received from said user, whereby said set of nodes are identified in said distributed data service prior to said performing in view of said corresponding unique identifiers.