Examples of org.apache.hadoop.hbase.io.hfile.FixedFileTrailer

org.apache.hadoop.hbase.io.hfile.FixedFileTrailer

The {@link HFile} has a fixed trailer which contains offsets to othervariable parts of the file. Also includes basic metadata on this file. The trailer size is fixed within a given {@link HFile} format version only, butwe always store the version number as the last four-byte integer of the file. The version number itself is split into two portions, a major version and a minor version. The last three bytes of a file is the major version and a single preceding byte is the minor number. The major version determines which readers/writers to use to read/write a hfile while a minor version determines smaller changes in hfile format that do not need a new reader/writer type.

              } else {
                // a regular hfile
                fsdis = fs.open(storeFilePath);
                lenToRead = storeFile.getLen();
              }
              FixedFileTrailer trailer = FixedFileTrailer.readFromStream(fsdis, lenToRead);
              int version = trailer.getMajorVersion();
              if (version == 1) {
                hFileV1Set.add(storeFilePath);
                // return this region path, as it needs to be compacted.
                return regionDir;
              }

Examples of org.apache.hadoop.hbase.io.hfile.FixedFileTrailer

Related Classes of org.apache.hadoop.hbase.io.hfile.FixedFileTrailer