Is there any body can solve Problem 4)? thanks.
Problem 4)
Spark don't push down predicates for HiveTableScan, which means that every
query is full scan.
------------------ ???????? ------------------
??????: "Julio Antonio Soto de Vicente";<ju...@esbet.es>;
????????: 2016??1??28??(??????) ????8:09
??????: "Maciej Bry??ski"<mac...@brynski.pl>;
????: "Ted Yu"<yuzhih...@gmail.com>; "dev"<dev@spark.apache.org>;
????: Re: Spark 1.6.0 + Hive + HBase
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 Bry??ski <mac...@brynski.pl> escribi??:
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 Bry??ski <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 Bry??ski
--
Maciek Bry??ski
