hi Aneela By any chance you are missing the property: spark.yarn.security.tokens.habse.enabled This was introduced as part of the fix: https://github.com/apache/spark/pull/8134/files
Cheers, Subroto Sanyal On Wed, Aug 10, 2016 at 11:53 AM, Aneela Saleem <[email protected]> wrote: > And I'm using Apache distribution of Spark not Cloudera. > > On Wed, Aug 10, 2016 at 12:06 PM, Aneela Saleem <[email protected]> > wrote: > > > Thanks Nkechi, > > > > I added this dependency as an external jar, when i compile the code, > > unfortunately i got the following error: > > > > error: object cloudera is not a member of package com > > [ERROR] import com.cloudera.spark.hbase.HBaseContext > > > > > > > > On Tue, Aug 9, 2016 at 7:51 PM, Nkechi Achara <[email protected]> > > wrote: > > > >> hi, > >> > >> Due to the fact we are not on Hbase 2.00 we are using SparkOnHbase. > >> > >> Dependency: > >> <dependency> > >> <groupId>com.cloudera</groupId> > >> <artifactId>spark-hbase</artifactId> > >> <version>0.0.2-clabs</version> > >> </dependency> > >> > >> It is quite a small snippet of code. For a general scan using a start > and > >> stop time as the scan time range. > >> > >> val conf = new SparkConf(). > >> set("spark.shuffle.consolidateFiles", "true"). > >> set("spark.kryo.registrationRequired", "false"). > >> set("spark.serializer", "org.apache.spark.serializer.K > >> ryoSerializer"). > >> set("spark.kryoserializer.buffer", "30m"). > >> set("spark.shuffle.spill", "true"). > >> set("spark.shuffle.memoryFraction", "0.4") > >> > >> val sc = new SparkContext(conf) > >> > >> val scan = new Scan() > >> scan.addColumn(columnName, "column1") > >> scan.setTimeRange(scanRowStartTs, scanRowStopTs) > >> hc.hbaseRDD(inputTableName,scan,filter) > >> > >> To run just use the following: > >> > >> spark-submit --class ClassName --master yarn-client --driver-memory > >> 2000M --executor-memory 5G --keytab <location of keytab> --principal > >> <location of principal> > >> > >> That should work in a general way. Obviously you can utilise other scan > / > >> put / gets etc methods. > >> > >> Thanks, > >> > >> Nkechi > >> > >> On 9 August 2016 at 15:20, Aneela Saleem <[email protected]> > wrote: > >> > >> > Thanks Nkechi, > >> > > >> > Can you please direct me to some code snippet with hbase on spark > >> module? > >> > I've been trying that for last few days but did not found a > workaround. > >> > > >> > > >> > > >> > On Tue, Aug 9, 2016 at 6:13 PM, Nkechi Achara < > [email protected]> > >> > wrote: > >> > > >> > > Hey, > >> > > > >> > > Have you tried hbase on spark module, or the spark-hbase module to > >> > connect? > >> > > The principal and keytab options should work out of the box for > >> > kerberized > >> > > access. I can attempt your code if you don't have the ability to use > >> > those > >> > > modules. > >> > > > >> > > Thanks > >> > > K > >> > > > >> > > On 9 Aug 2016 2:25 p.m., "Aneela Saleem" <[email protected]> > >> wrote: > >> > > > >> > > > Hi all, > >> > > > > >> > > > I'm trying to connect to Hbase with security enabled using spark > >> job. I > >> > > > have kinit'd from command line. When i run the following job i.e., > >> > > > > >> > > > /usr/local/spark-2/bin/spark-submit --keytab > >> > > /etc/hadoop/conf/spark.keytab > >> > > > --principal spark/hadoop-master@platalyticsrealm --class > >> > > > com.platalytics.example.spark.App --master yarn > >> --driver-class-path > >> > > > /root/hbase-1.2.2/conf /home/vm6/project-1-jar-with-d > >> ependencies.jar > >> > > > > >> > > > I get the error: > >> > > > > >> > > > 2016-08-07 20:43:57,617 WARN > >> > > > [hconnection-0x24b5fa45-metaLookup-shared--pool2-t1] > >> > > > ipc.RpcClientImpl: Exception encountered while connecting to the > >> > server : > >> > > > javax.security.sasl.SaslException: GSS initiate failed [Caused by > >> > > > GSSException: No valid credentials provided (Mechanism level: > >> Failed to > >> > > > find any Kerberos tgt)] 2016-08-07 20:43:57,619 ERROR > >> > > > [hconnection-0x24b5fa45-metaLookup-shared--pool2-t1] > >> > ipc.RpcClientImpl: > >> > > > SASL authentication failed. The most likely cause is missing or > >> invalid > >> > > > credentials. Consider 'kinit'. javax.security.sasl.SaslException: > >> GSS > >> > > > initiate failed [Caused by GSSException: No valid credentials > >> provided > >> > > > (Mechanism level: Failed to find any Kerberos tgt)] at > >> > > > com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge( > >> > > > GssKrb5Client.java:212) > >> > > > at org.apache.hadoop.hbase.security.HBaseSaslRpcClient. > saslConnect( > >> > > > HBaseSaslRpcClient.java:179) > >> > > > at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection. > >> > > > setupSaslConnection(RpcClientImpl.java:617) > >> > > > at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection. > >> > > > access$700(RpcClientImpl.java:162) at > org.apache.hadoop.hbase.ipc. > >> > > > RpcClientImpl$Connection$2.run(RpcClientImpl.java:743) > >> > > > > >> > > > Following is my code: > >> > > > > >> > > > System.setProperty("java.security.krb5.conf", "/etc/krb5.conf"); > >> > > > System.setProperty("java.security.auth.login.config", > >> > > > "/etc/hbase/conf/zk-jaas.conf"); > >> > > > > >> > > > val hconf = HBaseConfiguration.create() > >> > > > val tableName = "emp" > >> > > > hconf.set("hbase.zookeeper.quorum", "hadoop-master") > >> > > > hconf.set(TableInputFormat.INPUT_TABLE, tableName) > >> > > > hconf.set("hbase.zookeeper.property.clientPort", "2181") > >> > > > hconf.set("hadoop.security.authentication", "kerberos") > >> > > > hconf.set("hbase.security.authentication", "kerberos") > >> > > > hconf.addResource(new Path("/etc/hbase/conf/core-site.xml")) > >> > > > hconf.addResource(new Path("/etc/hbase/conf/hbase-site.xml")) > >> > > > UserGroupInformation.setConfiguration(hconf) > >> > > > val keyTab = "/etc/hadoop/conf/spark.keytab" > >> > > > val ugi = UserGroupInformation.loginUserFromKeytabAndReturnUG > >> > > > I("spark/hadoop-master@platalyticsrealm", keyTab) > >> > > > UserGroupInformation.setLoginUser(ugi) > >> > > > ugi.doAs(new PrivilegedExceptionAction[Void]() { > >> > > > override def run(): Void = { > >> > > > val conf = new SparkConf > >> > > > val sc = new SparkContext(conf) > >> > > > sc.addFile(keyTab) > >> > > > var hBaseRDD = sc.newAPIHadoopRDD(hconf, > >> classOf[TableInputFormat], > >> > > > classOf[org.apache.hadoop.hbase.io.ImmutableBytesWritable], > >> > > > classOf[org.apache.hadoop.hbase.client.Result]) > >> > > > println("Number of Records found : " + hBaseRDD.count()) > >> > > > hBaseRDD.foreach(x => { > >> > > > println(new String(x._2.getRow())) > >> > > > }) > >> > > > sc.stop() > >> > > > return null > >> > > > } > >> > > > }) > >> > > > > >> > > > Please have a look. And help me try finding the issue. > >> > > > > >> > > > Thanks > >> > > > > >> > > > >> > > >> > > > > >
