public synchronized byte[][] rollHLogWriter(String serverName)
throws IOException, FailedLogCloseException {
ServerName sn = new ServerName(serverName);
HRegionInterface rs = this.connection.getHRegionConnection(
sn.getHostname(), sn.getPort());
return rs.rollHLogWriter();
}
public String[] getMasterCoprocessors() {
try {
return getClusterStatus().getMasterCoprocessors();