xiaozhongcheng created HIVE-25096:
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Summary: beeline can't get the correct hiveserver2 using the
zoopkeeper with serviceDiscoveryMode=zooKeeper.
Key: HIVE-25096
URL: https://issues.apache.org/jira/browse/HIVE-25096
Project: Hive
Issue Type: Bug
Components: Beeline
Affects Versions: 3.1.2
Environment: centos7.4
x86_64
Reporter: xiaozhongcheng
Fix For: 4.0.0
beeline can't get the correct hiveserver2 using the zoopkeeper with
serviceDiscoveryMode=zooKeeper.
You know, HiveServer2#startPrivilegeSynchronizer will create the namespace of
/hiveserver2/leader in the zookeeper,
however, if you want to connect to the hiveserver2 using beeline with the
command like
"jdbc:hive2://vhost-120-26:2181,vhost-120-27:2181,vhost-120-28:2181/;serviceDiscoveryMode=zooKeeper;zooKeeperNamespace=hiveserver2",
the beeline will randomly chose the sub-namespace under /hiveserver2.
That arises a problem that the beeline will find the hiveserver2 information in
the namespace of /hiveserver2/leader, it's impossible to detect the hiveserver2
connection information.
That's to say, the sub-namespace of /hiveserver2 is like this:
[zk: vhost-120-28:2181,vhost-120-27:2181,vhost-120-26:2181(CONNECTED) 1] ls
/hiveserver2
[leader, serverUri=vhost-120-26:10000;version=3.1.2;sequence=0000000010,
serverUri=vhost-120-28:10000;version=3.1.2;sequence=0000000011]
Codes list bellow show {color:#222222}HiveServer2#startPrivilegeSynchronizer
and beeline how to connect the hiveserver2.{color}
{color:#222222}HiveServer2#startPrivilegeSynchronizer:{color}
{color:#222222} public void startPrivilegeSynchronizer(HiveConf hiveConf)
throws Exception {{color}
{color:#222222} {color}
{color:#222222} if (!HiveConf.getBoolVar(hiveConf,
ConfVars.HIVE_PRIVILEGE_SYNCHRONIZER)) {{color}
{color:#222222} return;{color}
{color:#222222} }{color}
{color:#222222} PolicyProviderContainer policyContainer = new
PolicyProviderContainer();{color}
{color:#222222} HiveAuthorizer authorizer =
SessionState.get().getAuthorizerV2();{color}
{color:#222222} if (authorizer.getHivePolicyProvider() != null) {{color}
{color:#222222} policyContainer.addAuthorizer(authorizer);{color}
{color:#222222} }{color}
{color:#222222} if (MetastoreConf.getVar(hiveConf,
MetastoreConf.ConfVars.PRE_EVENT_LISTENERS) != null &&{color}
{color:#222222} MetastoreConf.getVar(hiveConf,
MetastoreConf.ConfVars.PRE_EVENT_LISTENERS).contains({color}
{color:#222222}
"org.apache.hadoop.hive.ql.security.authorization.AuthorizationPreEventListener")
&&{color}
{color:#222222} MetastoreConf.getVar(hiveConf,
MetastoreConf.ConfVars.HIVE_AUTHORIZATION_MANAGER)!= null) {{color}
{color:#222222} List<HiveMetastoreAuthorizationProvider> providers =
HiveUtils.getMetaStoreAuthorizeProviderManagers({color}
{color:#222222} hiveConf,
HiveConf.ConfVars.HIVE_METASTORE_AUTHORIZATION_MANAGER,
SessionState.get().getAuthenticator());{color}
{color:#222222} for (HiveMetastoreAuthorizationProvider provider :
providers) {{color}
{color:#222222} if (provider.getHivePolicyProvider() != null) {{color}
{color:#222222}
policyContainer.addAuthorizationProvider(provider);{color}
{color:#222222} }{color}
{color:#222222} }{color}
{color:#222222} }{color}
{color:#222222} {color}
{color:#222222} if (policyContainer.size() > 0) {{color}
{color:#222222} setUpZooKeeperAuth(hiveConf);{color}
{color:#222222} zKClientForPrivSync =
hiveConf.getZKConfig().startZookeeperClient(zooKeeperAclProvider, true);{color}
{color:#222222} String rootNamespace =
hiveConf.getVar(HiveConf.ConfVars.HIVE_SERVER2_ZOOKEEPER_NAMESPACE);{color}
{color:#222222} String path = ZooKeeperHiveHelper.ZOOKEEPER_PATH_SEPARATOR
+ rootNamespace{color}
{color:#222222} + ZooKeeperHiveHelper.ZOOKEEPER_PATH_SEPARATOR +
"leader";{color}
{color:#222222} LeaderLatch privilegeSynchronizerLatch = new
LeaderLatch(zKClientForPrivSync, path);{color}
{color:#222222} privilegeSynchronizerLatch.start();{color}
{color:#222222} LOG.info("Find " + policyContainer.size() + " policy to
synchronize, start PrivilegeSynchronizer");{color}
{color:#222222} Thread privilegeSynchronizerThread = new Thread({color}
{color:#222222} new PrivilegeSynchronizer(privilegeSynchronizerLatch,
policyContainer, hiveConf), "PrivilegeSynchronizer");{color}
{color:#222222} privilegeSynchronizerThread.setDaemon(true);{color}
{color:#222222} privilegeSynchronizerThread.start();{color}
{color:#222222} } else {{color}
{color:#222222} LOG.warn({color}
{color:#222222} "No policy provider found, skip creating
PrivilegeSynchronizer");{color}
{color:#222222} }{color}
{color:#222222} }{color}
{color:#222222}ZooKeeperHiveClientHelper#configureConnParams{color}
{color:#222222} static void configureConnParams(JdbcConnectionParams
connParams) throws ZooKeeperHiveClientException {{color}
{color:#222222} if (isZkHADynamicDiscoveryMode(connParams.getSessionVars()))
{{color}
{color:#222222} configureConnParamsHA(connParams);{color}
{color:#222222} } else {{color}
{color:#222222} CuratorFramework zooKeeperClient = null;{color}
{color:#222222} try {{color}
{color:#222222} zooKeeperClient = getZkClient(connParams);{color}
{color:#222222} {color}
{color:#222222} final List<String> serverHosts =
getServerHosts(connParams, zooKeeperClient);{color}
{color:#222222} {color}
{color:#222222} if (serverHosts.isEmpty()) {{color}
{color:#222222} throw new ZooKeeperHiveClientException("No more
HiveServer2 URIs from ZooKeeper to attempt");{color}
{color:#222222} }{color}
{color:#222222} {color}
{color:#222222} // Pick a server node randomly{color}
{color:#222222} final String serverNode =
serverHosts.get(ThreadLocalRandom.current().nextInt(serverHosts.size()));{color}
{color:#222222} {color}
{color:#222222} updateParamsWithZKServerNode(connParams,
zooKeeperClient, serverNode);{color}
{color:#222222} } catch (ZooKeeperHiveClientException zkhce) {{color}
{color:#222222} throw zkhce;{color}
{color:#222222} } catch (Exception e) {{color}
{color:#222222} throw new ZooKeeperHiveClientException("Unable to read
HiveServer2 configs from ZooKeeper", e);{color}
{color:#222222} } finally {{color}
{color:#222222} if (zooKeeperClient != null) {{color}
{color:#222222} zooKeeperClient.close();{color}
{color:#222222} }{color}
{color:#222222} }{color}
{color:#222222} }{color}
{color:#222222} }{color}
{color:#222222}I wonder if it's ok to use /hiveserver2-leader to replace
/hiveserver2/leader?{color}
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