private static void usageReportMissingRegionsInMeta()

in hbase-hbck2/src/main/java/org/apache/hbase/HBCK2.java [731:765]

• 35 lines of code
• 1 McCabe index (conditional complexity)

  private static void usageReportMissingRegionsInMeta(PrintWriter writer) {
    writer.println(" " + REPORT_MISSING_REGIONS_IN_META + " [<NAMESPACE|"
        + "NAMESPACE:TABLENAME>...|-i <INPUT_FILE>...]");
    writer.println("   Options:");
    writer.println("    -i,--inputFiles  take one or more files of encoded region names");
    writer.println("   To be used when regions missing from hbase:meta but directories");
    writer.println("   are present still in HDFS. Can happen if user has run _hbck1_");
    writer.println("   'OfflineMetaRepair' against an hbase-2.x cluster. This is a CHECK only");
    writer.println("   method, designed for reporting purposes and doesn't perform any");
    writer.println("   fixes, providing a view of which regions (if any) would get re-added");
    writer.println("   to hbase:meta, grouped by respective table/namespace. To effectively");
    writer.println("   re-add regions in meta, run " + ADD_MISSING_REGIONS_IN_META_FOR_TABLES +
        ".");
    writer.println("   This command needs hbase:meta to be online. For each namespace/table");
    writer.println("   passed as parameter, it performs a diff between regions available in");
    writer.println("   hbase:meta against existing regions dirs on HDFS. Region dirs with no");
    writer.println("   matches are printed grouped under its related table name. Tables with");
    writer.println("   no missing regions will show a 'no missing regions' message. If no");
    writer.println("   namespace or table is specified, it will verify all existing regions.");
    writer.println("   It accepts a combination of multiple namespace and tables. Table names");
    writer.println("   should include the namespace portion, even for tables in the default");
    writer.println("   namespace, otherwise it will assume as a namespace value.");
    writer.println("   An example triggering missing regions execute for tables 'table_1'");
    writer.println("   and 'table_2', under default namespace:");
    writer.println("     $ HBCK2 reportMissingRegionsInMeta default:table_1 default:table_2");
    writer.println("   An example triggering missing regions execute for table 'table_1'");
    writer.println("   under default namespace, and for all tables from namespace 'ns1':");
    writer.println("     $ HBCK2 reportMissingRegionsInMeta default:table_1 ns1");
    writer.println("   Returns list of missing regions for each table passed as parameter, or");
    writer.println("   for each table on namespaces specified as parameter.");
    writer.println("   If -i or --inputFiles is specified, pass one or more input file names.");
    writer.println("   Each file contains <NAMESPACE|NAMESPACE:TABLENAME>, one per line.);" +
            "For example:");
    writer.println("     $ HBCK2 " + REPORT_MISSING_REGIONS_IN_META + " -i fileName1 fileName2");
  }