Metadata updating method and device based on column storage of distributed file system as well as host
A technology for distributed files and file metadata, applied in the field of data processing, can solve the problems of not being able to provide a method for dynamic modification of metadata, consuming huge computing resource overhead and time overhead, etc.
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[0105] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0106] See figure 1 The embodiment of the present invention provides a method for updating metadata based on columnar storage in a distributed file system. The method includes:
[0107] Step 110: Obtain the metadata to be updated in the data table of the distributed file system, divide the data records of the data table into multiple row groups by row, and convert the data table into a global file metadata and multiple row group files .
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