Hi, Indeed, Hive is not able to perform predicate pushdown through a HBase table. Nor Hive or Impala can.
Broadly speaking, if you need to query your HBase table through a field other than de rowkey: A) Try to "encode" as much info as possible in the rowkey field and use it as your predicate, or B) Feel free to use other kind of storage system/create coprocessors in order to create a secondary index. > El 28 ene 2016, a las 12:56, Maciej Bryński <mac...@brynski.pl> escribió: > > Ted, > You're right. > hbase-site.xml resolved problems 2 and 3, but... > > Problem 4) > Spark don't push down predicates for HiveTableScan, which means that every > query is full scan. > > == Physical Plan == > TungstenAggregate(key=[], functions=[(count(1),mode=Final,isDistinct=false)], > output=[count#144L]) > +- TungstenExchange SinglePartition, None > +- TungstenAggregate(key=[], > functions=[(count(1),mode=Partial,isDistinct=false)], output=[count#147L]) > +- Project > +- Filter (added_date#141L >= 201601280000) > +- HiveTableScan [added_date#141L], MetastoreRelation > dwh_diagnostics, sessions_hbase, None > > Is there any magic option to make this work ? > > Regards, > Maciek > > 2016-01-28 10:25 GMT+01:00 Ted Yu <yuzhih...@gmail.com>: >> For the last two problems, hbase-site.xml seems not to be on classpath. >> >> Once hbase-site.xml is put on classpath, you should be able to make >> progress. >> >> Cheers >> >>> On Jan 28, 2016, at 1:14 AM, Maciej Bryński <mac...@brynski.pl> wrote: >>> >>> Hi, >>> I'm trying to run SQL query on Hive table which is stored on HBase. >>> I'm using: >>> - Spark 1.6.0 >>> - HDP 2.2 >>> - Hive 0.14.0 >>> - HBase 0.98.4 >>> >>> I managed to configure working classpath, but I have following problems: >>> >>> 1) I have UDF defined in Hive Metastore (FUNCS table). >>> Spark cannot use it.. >>> >>> File "/opt/spark/python/lib/py4j-0.9-src.zip/py4j/protocol.py", line 308, >>> in get_return_value >>> py4j.protocol.Py4JJavaError: An error occurred while calling o51.sql. >>> : org.apache.spark.sql.AnalysisException: undefined function >>> dwh.str_to_map_int_str; line 55 pos 30 >>> at >>> org.apache.spark.sql.hive.HiveFunctionRegistry$$anonfun$lookupFunction$2$$anonfun$1.apply(hiveUDFs.scala:69) >>> at >>> org.apache.spark.sql.hive.HiveFunctionRegistry$$anonfun$lookupFunction$2$$anonfun$1.apply(hiveUDFs.scala:69) >>> at scala.Option.getOrElse(Option.scala:120) >>> at >>> org.apache.spark.sql.hive.HiveFunctionRegistry$$anonfun$lookupFunction$2.apply(hiveUDFs.scala:68) >>> at >>> org.apache.spark.sql.hive.HiveFunctionRegistry$$anonfun$lookupFunction$2.apply(hiveUDFs.scala:64) >>> at scala.util.Try.getOrElse(Try.scala:77) >>> at >>> org.apache.spark.sql.hive.HiveFunctionRegistry.lookupFunction(hiveUDFs.scala:64) >>> at >>> org.apache.spark.sql.catalyst.analysis.Analyzer$ResolveFunctions$$anonfun$apply$12$$anonfun$applyOrElse$5$$anonfun$applyOrElse$24.apply(Analyzer.scala:574) >>> at >>> org.apache.spark.sql.catalyst.analysis.Analyzer$ResolveFunctions$$anonfun$apply$12$$anonfun$applyOrElse$5$$anonfun$applyOrElse$24.apply(Analyzer.scala:574) >>> at >>> org.apache.spark.sql.catalyst.analysis.package$.withPosition(package.scala:48) >>> at >>> org.apache.spark.sql.catalyst.analysis.Analyzer$ResolveFunctions$$anonfun$apply$12$$anonfun$applyOrElse$5.applyOrElse(Analyzer.scala:573) >>> at >>> org.apache.spark.sql.catalyst.analysis.Analyzer$ResolveFunctions$$anonfun$apply$12$$anonfun$applyOrElse$5.applyOrElse(Analyzer.scala:570) >>> >>> >>> 2) When I'm using SQL without this function Spark tries to connect to >>> Zookeeper on localhost. >>> I make a tunnel from localhost to one of the zookeeper servers but it's not >>> a solution. >>> >>> 16/01/28 10:09:18 INFO ZooKeeper: Client >>> environment:zookeeper.version=3.4.6-1569965, built on 02/20/2014 09:09 GMT >>> 16/01/28 10:09:18 INFO ZooKeeper: Client environment:host.name=j4.jupyter1 >>> 16/01/28 10:09:18 INFO ZooKeeper: Client environment:java.version=1.8.0_66 >>> 16/01/28 10:09:18 INFO ZooKeeper: Client environment:java.vendor=Oracle >>> Corporation >>> 16/01/28 10:09:18 INFO ZooKeeper: Client >>> environment:java.home=/usr/lib/jvm/java-8-oracle/jre >>> 16/01/28 10:09:18 INFO ZooKeeper: Client >>> environment:java.class.path=/opt/spark/lib/mysql-connector-java-5.1.35-bin.jar:/opt/spark/lib/dwh-hbase-connector.jar:/opt/spark/lib/hive-hbase-handler-1.2.1.spark.jar:/opt/spark/lib/hbase-server.jar:/opt/spark/lib/hbase-common.jar:/opt/spark/lib/dwh-commons.jar:/opt/spark/lib/guava.jar:/opt/spark/lib/hbase-client.jar:/opt/spark/lib/hbase-protocol.jar:/opt/spark/lib/htrace-core.jar:/opt/spark/conf/:/opt/spark/lib/spark-assembly-1.6.0-hadoop2.6.0.jar:/opt/spark/lib/datanucleus-rdbms-3.2.9.jar:/opt/spark/lib/datanucleus-api-jdo-3.2.6.jar:/opt/spark/lib/datanucleus-core-3.2.10.jar:/etc/hadoop/conf/ >>> 16/01/28 10:09:18 INFO ZooKeeper: Client >>> environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib >>> 16/01/28 10:09:18 INFO ZooKeeper: Client environment:java.io.tmpdir=/tmp >>> 16/01/28 10:09:18 INFO ZooKeeper: Client environment:java.compiler=<NA> >>> 16/01/28 10:09:18 INFO ZooKeeper: Client environment:os.name=Linux >>> 16/01/28 10:09:18 INFO ZooKeeper: Client environment:os.arch=amd64 >>> 16/01/28 10:09:18 INFO ZooKeeper: Client >>> environment:os.version=3.13.0-24-generic >>> 16/01/28 10:09:18 INFO ZooKeeper: Client environment:user.name=mbrynski >>> 16/01/28 10:09:18 INFO ZooKeeper: Client >>> environment:user.home=/home/mbrynski >>> 16/01/28 10:09:18 INFO ZooKeeper: Client environment:user.dir=/home/mbrynski >>> 16/01/28 10:09:18 INFO ZooKeeper: Initiating client connection, >>> connectString=localhost:2181 sessionTimeout=90000 >>> watcher=hconnection-0x36079f06, quorum=localhost:2181, baseZNode=/hbase >>> 16/01/28 10:09:18 INFO RecoverableZooKeeper: Process >>> identifier=hconnection-0x36079f06 connecting to ZooKeeper >>> ensemble=localhost:2181 >>> 16/01/28 10:09:18 INFO ClientCnxn: Opening socket connection to server >>> localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL >>> (unknown error) >>> 16/01/28 10:09:18 INFO ClientCnxn: Socket connection established to >>> localhost/127.0.0.1:2181, initiating session >>> 16/01/28 10:09:18 INFO ClientCnxn: Session establishment complete on server >>> localhost/127.0.0.1:2181, sessionid = 0x15254709ed3c8e1, negotiated timeout >>> = 40000 >>> 16/01/28 10:09:18 INFO ZooKeeperRegistry: ClusterId read in ZooKeeper is >>> null >>> >>> >>> 3) After making tunel I'm getting NPE. >>> >>> Caused by: java.lang.NullPointerException >>> at >>> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.getMetaReplicaNodes(ZooKeeperWatcher.java:269) >>> at >>> org.apache.hadoop.hbase.zookeeper.MetaRegionTracker.blockUntilAvailable(MetaRegionTracker.java:241) >>> at >>> org.apache.hadoop.hbase.client.ZooKeeperRegistry.getMetaRegionLocation(ZooKeeperRegistry.java:62) >>> at >>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateMeta(ConnectionManager.java:1203) >>> at >>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1164) >>> at >>> org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:294) >>> at >>> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:130) >>> at >>> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:55) >>> at >>> org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:201) >>> ... 91 more >>> >>> Do you have any ideas how to resolve those problems ? >>> >>> Regards, >>> -- >>> Maciek Bryński > > > > -- > Maciek Bryński
