Examples with DatanodeStorageReport org.apache.hadoop.hdfs.server.protocol.DatanodeStorageReport used on opensource projects

Example 11 with DatanodeStorageReport

use of org.apache.hadoop.hdfs.server.protocol.DatanodeStorageReport in project SSM by Intel-bigdata.

the class DatanodeStorageReportProcTask method getDNStorageReports.

/**
 * Get live datanode storage reports and then build the network topology.
 * @return
 * @throws IOException
 */
public List<DatanodeStorageReport> getDNStorageReports() throws IOException {
    final DatanodeStorageReport[] reports = client.getDatanodeStorageReport(DatanodeReportType.LIVE);
    final List<DatanodeStorageReport> trimmed = new ArrayList<DatanodeStorageReport>();
    // over-utilized, above-average, below-average and under-utilized.
    for (DatanodeStorageReport r : DFSUtil.shuffle(reports)) {
        final DatanodeInfo datanode = r.getDatanodeInfo();
        trimmed.add(r);
    }
    return trimmed;
}