Page Comparison

...

1. 1. 1. Clone Apache Sentry source from https://github.com/apache/incubator-sentry
      2. There is a problem compiling the sentry-tests module right now, so comment it out temporarily from the root pom.xml until we find a fix
      3. mvn clean install -DskipTests will generate a sentry distribution under sentry-dist/target/apache-sentry-1.7.0-incubating-SNAPSHOT-bin/. Only takes a few mins.
      4. cd sentry-dist/target/apache-sentry-1.7.0-incubating-SNAPSHOT-bin/apache-sentry-1.7.0-incubating-SNAPSHOT-bin/

      5. Create a sentry-site.xml in the conf directory with the following contents. This is a bare-minimum sentry-site.xml without kerberos. 

         Code Block

         <?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>sentry.service.security.mode</name> <value>none</value> </property> <property> <name>sentry.service.admin.group</name> <value>admin1</value> </property> <property> <name>sentry.service.allow.connect</name> <value>impala,hive</value> </property> <property> <name>sentry.store.jdbc.url</name> <value>jdbc:derby:;databaseName=metastore_db;create=true</value> </property> <property> <name>sentry.store.jdbc.driver</name> <value>org.apache.derby.jdbc.EmbeddedDriver</value> </property> <property> <name>sentry.store.jdbc.password</name> <value>sentry</value> </property> </configuration>

      6. Set up the sentry policy store using a Derby DB

         Code Block
         bin/sentry --command schema-tool --conffile conf/sentry-site.xml --dbType derby --initSchema

         Or, for MySQL:

         Code Block
         bin/sentry --command schema-tool --conffile conf/sentry-site.xml --dbType mysql --initSchema --verbose

         Note: mysql jdbc driver jar should be in sentry/lib. Also, sentry does not accept a user without password for mysql (and perhaps postgresql etc)

      7. Start the sentry service 

         Code Block
         inbin/sentry --command service --conffile conf/sentry-site.xml &> sentry-service.log &

      8. If you get the following error, it is because of an old metrics-core.jar in the hadoop classpath. If you see this, remove the file /usr/lib/hadoop-mapreduce/metrics-core-3.0.2.jar until we fix the error, and restart sentry using the above step. 

         Code Block

         Exception in thread "main" java.util.concurrent.ExecutionException: java.lang.NoSuchMethodError: com.codahale.metrics.JmxAttributeGauge.<init>(Ljavax/management/MBeanServerConnection;Ljavax/management/ObjectName;Ljava/lang/String;)V at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:188) at org.apache.sentry.service.thrift.SentryService.waitOnFuture(SentryService.java:311) at org.apache.sentry.service.thrift.SentryService$CommandImpl.run(SentryService.java:397) at org.apache.sentry.SentryMain.main(SentryMain.java:114) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.hadoop.util.RunJar.run(RunJar.java:221) at org.apache.hadoop.util.RunJar.main(RunJar.java:136) Caused by: java.lang.NoSuchMethodError: com.codahale.metrics.JmxAttributeGauge.<init>(Ljavax/management/MBeanServerConnection;Ljavax/management/ObjectName;Ljava/lang/String;)V at com.codahale.metrics.jvm.BufferPoolMetricSet.getMetrics(BufferPoolMetricSet.java:45) at org.apache.sentry.provider.db.service.thrift.SentryMetrics.registerMetricSet(SentryMetrics.java:149) at org.apache.sentry.provider.db.service.thrift.SentryMetrics.<init>(SentryMetrics.java:97) at org.apache.sentry.provider.db.service.thrift.SentryMetrics.getInstance(SentryMetrics.java:105) at org.apache.sentry.provider.db.service.thrift.SentryPolicyStoreProcessor.initMetrics(SentryPolicyStoreProcessor.java:129) at org.apache.sentry.provider.db.service.thrift.SentryPolicyStoreProcessor.<init>(SentryPolicyStoreProcessor.java:125) at org.apache.sentry.provider.db.service.thrift.SentryPolicyStoreProcessorFactory.register(SentryPolicyStoreProcessorFactory.java:31) at org.apache.sentry.service.thrift.SentryService.runServer(SentryService.java:200) at org.apache.sentry.service.thrift.SentryService.call(SentryService.java:167) at org.apache.sentry.service.thrift.SentryService.call(SentryService.java:71) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)

2.