/**
* set current session to existing session object if a thread is running multiple sessions - it
* must call this method with the new session object when switching from one session to another.
*
* @throws HiveException
*/
public static SessionState start(SessionState startSs) {
tss.set(startSs);
if (StringUtils.isEmpty(startSs.getConf().getVar(HiveConf.ConfVars.HIVESESSIONID))) {
startSs.getConf().setVar(HiveConf.ConfVars.HIVESESSIONID, makeSessionId());
}
if (startSs.hiveHist == null) {
startSs.hiveHist = new HiveHistory(startSs);
}
if (startSs.getTmpOutputFile() == null) {
// per-session temp file containing results to be sent from HiveServer to HiveClient
File tmpDir =
new File(HiveConf.getVar(startSs.getConf(), HiveConf.ConfVars.HIVEHISTORYFILELOC));
String sessionID = startSs.getConf().getVar(HiveConf.ConfVars.HIVESESSIONID);
try {
File tmpFile = File.createTempFile(sessionID, ".pipeout", tmpDir);
tmpFile.deleteOnExit();
startSs.setTmpOutputFile(tmpFile);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
try {
startSs.authenticator = HiveUtils.getAuthenticator(startSs.getConf());
startSs.authorizer =
HiveUtils.getAuthorizeProviderManager(startSs.getConf(), startSs.authenticator);
startSs.createTableGrants = CreateTableAutomaticGrant.create(startSs.getConf());
} catch (HiveException e) {
throw new RuntimeException(e);
}
return startSs;
}
