Support kerberos authentication for Kudu connector #3549
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package io.prestosql.plugin.kudu; | ||
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| import io.airlift.log.Logger; | ||
| import org.apache.hadoop.conf.Configuration; | ||
| import org.apache.hadoop.security.UserGroupInformation; | ||
| import org.apache.kudu.client.KuduClient; | ||
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| import java.io.IOException; | ||
| import java.security.PrivilegedExceptionAction; | ||
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| public class KuduUtil | ||
|
Member
There was a problem hiding this comment. Please use |
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| { | ||
| private static final Logger log = Logger.get(KuduUtil.class); | ||
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| private KuduUtil() | ||
| { | ||
| // not allowed to be called to initialize instance | ||
| } | ||
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| /** | ||
| * Initialize kerberos authentication | ||
| */ | ||
| static void initKerberosENV(String principal, String keytab, boolean debugEnabled) | ||
| { | ||
| try { | ||
| Configuration conf = new Configuration(false); | ||
| conf.set("hadoop.security.authentication", "kerberos"); | ||
| if (debugEnabled) { | ||
| System.setProperty("sun.security.krb5.debug", "true"); | ||
| } | ||
| UserGroupInformation.setConfiguration(conf); | ||
|
Member
There was a problem hiding this comment. Do we need to add hadoop dependencies ? How about reusing |
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| UserGroupInformation.loginUserFromKeytab(principal, keytab); | ||
| log.info("Connecting to kudu with kerberos authentication"); | ||
| log.info("Current user: " + UserGroupInformation.getCurrentUser()); | ||
| log.info("Login user: " + UserGroupInformation.getLoginUser()); | ||
| } | ||
| catch (Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
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| static KuduClient createKuduKerberosClient(KuduClientConfig config) | ||
| { | ||
| KuduClient client = null; | ||
| try { | ||
| reTryKerberos(true); | ||
| client = UserGroupInformation.getLoginUser().doAs( | ||
| (PrivilegedExceptionAction<KuduClient>) () -> createKuduClient(config)); | ||
| return client; | ||
| } | ||
| catch (Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
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| static KuduClient createKuduClient(KuduClientConfig config) | ||
| { | ||
| KuduClient.KuduClientBuilder builder = new KuduClient.KuduClientBuilder(config.getMasterAddresses()); | ||
| builder.defaultAdminOperationTimeoutMs(config.getDefaultAdminOperationTimeout().toMillis()); | ||
| builder.defaultOperationTimeoutMs(config.getDefaultOperationTimeout().toMillis()); | ||
| builder.defaultSocketReadTimeoutMs(config.getDefaultSocketReadTimeout().toMillis()); | ||
| if (config.isDisableStatistics()) { | ||
| builder.disableStatistics(); | ||
| } | ||
| return builder.build(); | ||
| } | ||
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| static void reTryKerberos(boolean enabled) | ||
| { | ||
| if (enabled) { | ||
| log.debug("Try relogin kerberos at first!"); | ||
| try { | ||
| if (UserGroupInformation.isLoginKeytabBased()) { | ||
| UserGroupInformation.getLoginUser().reloginFromKeytab(); | ||
| } | ||
| else if (UserGroupInformation.isLoginTicketBased()) { | ||
| UserGroupInformation.getLoginUser().reloginFromTicketCache(); | ||
| } | ||
| } | ||
| catch (IOException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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I think this should be a regular subsection.
Same applies to
### Advanced Kudu Java client configuration.@mosabua Any suggestsions?