@Override
  public String toString() {
    return this.getClass().getName();
  }
SyslogStorageHandler handles log files written to logs table in sys db. sys.logs is external table partitioned by
dt (date), ns (namespace) and app (application) where logs files are stored in YYYY-mm-DD-HH-MM_i[.log][.gz] format.
The contents in the log files are expected to be in RFC5424 layout for machine readability and
human readability (some editors can replace the unescape the linebreaks correctly to show stacktraces etc.).
NOTE: This storage handler is not generic and has several assumptions that are specific for hive's own log
processing. Refer {@link SyslogInputFormat} and {@link SyslogParser} for more assumptions.
ql/src/java/org/apache/hadoop/hive/ql/log/syslog/SyslogStorageHandler.java