Method and systems for master establishment using service-based statistics

A method comprising:

• each node of a cluster of nodes hosting one or more services of a plurality of services,
• each node of said cluster of nodes being connected to one or more storage devices that store a plurality of data blocks;
• connecting each session of a plurality of sessions to a respective node of said cluster of nodes;
• wherein each session of said plurality of sessions is associated with a respective service of said plurality of services;
• wherein connecting each session of a plurality of sessions includes connecting said each session to a node of said cluster of nodes hosting the respective service of said each session;
• collecting service-based access statistics aggregated by said plurality of services and by a plurality of subranges of data block addresses of said plurality of data blocks, each subrange of said plurality of subranges comprising contiguous data block addresses, wherein for each subrange of said plurality of subranges, said service-based access statistics indicate a number of accesses by one or more services of said plurality of services;
• populating caches on said cluster of nodes with some of said plurality of data blocks based on the service-based access statistics and the one or more services hosted by each node of said cluster of nodes.

One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors, cause:

• each node of a cluster of nodes hosting one or more services of a plurality of services, each node of said cluster of nodes being connected to one or more storage devices that store a plurality of data blocks;
• connecting each session of a plurality of sessions to a respective node of said cluster of nodes;
• wherein each session of said plurality of sessions is associated with a respective service of said plurality of services;
• wherein connecting each session of a plurality of sessions includes connecting said each session to a node of said cluster of nodes hosting the respective service of said each session;
• collecting service-based access statistics aggregated by said plurality of services and by a plurality of subranges of data block addresses of said plurality of data blocks, each subrange of said plurality of subranges comprising contiguous data block addresses, wherein for each subrange of said plurality of subranges, said service- based access statistics indicate a number of accesses by one or more services of said plurality of services;
• for each subrange of said plurality of subranges, assigning mastership of said each subrange to a respective node of said cluster of nodes based on the service-based access statistics and the respective one or more services hosted by the respective node assigned mastership of said each subrange;
• and
• wherein for each subrange of said plurality of subranges:
• one or more nodes in said cluster of nodes other than the respective node assigned mastership of said each subrange issue lock requests to the respective node for any data block within said each subrange,
• the respective node assigned mastership of said each subrange grants said lock requests to said one or more nodes.

One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors, cause:

• each node of a cluster of nodes hosting one or more services of a plurality of services, each node of said cluster of nodes being connected to one or more storage devices that store a plurality of data blocks;
• connecting each session of a plurality of sessions to a respective node of said cluster of nodes;
• wherein each session of said plurality of sessions is associated with a respective service of said plurality of services;
• wherein connecting each session of a plurality of sessions includes connecting said each session to a node of said cluster of nodes hosting the respective service of said each session;
• collecting service-based access statistics aggregated by said plurality of services and by a plurality of subranges of data block addresses of said plurality of data blocks, each subrange of said plurality of subranges comprising contiguous data block addresses, wherein for each subrange of said plurality of subranges, said service-based access statistics indicate a number of accesses by one or more services of said plurality of services;
• populating caches on said cluster of nodes with some of said plurality of data blocks based on the service-based access statistics and the one or more services hosted by each node of said cluster of nodes.