/**
* Warning - do not use this constructor if you think it has been called anywhere else! This is
* also not thread safe.
*
* <p>TODO(henry): Proper singleton implementation
*/
public FlumeMaster(FlumeConfiguration cfg, boolean doHttp) {
this.cfg = cfg;
instance = this;
this.uniqueMasterName = "flume-master-" + cfg.getMasterServerId();
this.doHttp = doHttp;
this.cmdman = new CommandManager();
ConfigStore cfgStore = createConfigStore(FlumeConfiguration.get());
this.statman = new StatusManager();
// configuration manager translate user entered configs
if (FlumeConfiguration.get().getMasterIsDistributed()) {
LOG.info("Distributed master, disabling all config translations");
ConfigurationManager base = new ConfigManager(cfgStore);
this.specman = base;
} else {
// TODO (jon) translated configurations cause problems in multi-master
// situations. For now we disallow translation.
LOG.info("Single master, config translations enabled");
ConfigurationManager base = new ConfigManager(cfgStore);
ConfigurationManager flowedFailovers =
new FlowConfigManager.FailoverFlowConfigManager(base, statman);
this.specman = new LogicalConfigurationManager(flowedFailovers, new ConfigManager(), statman);
}
if (FlumeConfiguration.get().getMasterIsDistributed()) {
this.ackman = new GossipedMasterAckManager(FlumeConfiguration.get());
} else {
this.ackman = new MasterAckManager();
}
}
/**
* Completely generic and pluggable Flume master constructor. Used for test cases. Webserver is by
* default off.
*/
public FlumeMaster(
CommandManager cmd,
ConfigurationManager cfgMan,
StatusManager stat,
MasterAckManager ack,
FlumeConfiguration cfg) {
instance = this;
this.doHttp = false;
this.cmdman = cmd;
this.specman = cfgMan;
this.statman = stat;
this.ackman = ack;
this.cfg = cfg;
this.uniqueMasterName = "flume-master-" + cfg.getMasterServerId();
}