International Business Machines Corporation

Eliran Zada

Amit Margalit

Eran Tzabari

Eli Koren

Ovadi Somech

Vadim Idelchuk

A method, system, and computer program product for file system synchronization-based updating is provided. The method identifies an update request associated with a software update. Based on the update request, the method modifies one or more data object on a synchronization array. The modification to the data object corresponds to the software update of the update request. The method validates the modification to the one or more data objects to ensure a match between elements of the synchronization array. A persistent RAM state is established for an element of the synchronization array. The method initiates a reboot to complete the update request. The reboot applies the software update to one or more elements of the synchronization array.

File system synchronization-based updating

Interpolated search is provided for navigating a compressed file to identify a desired offset in an uncompressed version of the file by: determining a low point and a high point in an uncompressed version of a stream corresponding to a compressed version of the stream that is divided into a plurality of chunks; calculating an average compression ratio between the low point and the high point; interpolating a position in the compressed version of a desired offset in the uncompressed version to identify a bifurcation chunk of the plurality of chunks that includes the interpolated position; reading an offset of the bifurcation chunk; and in response to determining that the desired offset is within a threshold distance of the offset of the bifurcation chunk, decompressing the compressed version from the bifurcation chunk until the desired offset is output.

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Rosh-Ha′ayin, Israel

Eliran Zada