Hive 2.0.1
Hadoop 2.7.2
Tex 0.8.4
We have a UDF in hive which take in some values and outputs a score. When
running a query on a table which calls the score function on every row,
looks like tez is not running the query on YARN, but trying to run it in
local mode. It then runs out of memory trying to insert that data into a
table.
Here's the query
*ADD JAR score.jar;*
*CREATE TEMPORARY FUNCTION score AS 'hive.udf.ScoreUDF';*
*CREATE TABLE abc AS*
*SELECT*
* id,*
* score(col1, col2) as score*
* , '2016-10-11' AS dt*
*FROM input_table*
*;*
Here's the output of the shell
Query ID = hadoop_20161028232841_5a06db96-ffaa-4e75-a657-c7cb46ccb3f5
Total jobs = 1
Launching Job 1 out of 1
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:3332)
at
java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:137)
at
java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:121)
at
java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:622)
at java.lang.StringBuilder.append(StringBuilder.java:202)
at com.google.protobuf.TextFormat.escapeBytes(TextFormat.java:1283)
at
com.google.protobuf.TextFormat$Printer.printFieldValue(TextFormat.java:394)
at
com.google.protobuf.TextFormat$Printer.printSingleField(TextFormat.java:327)
at
com.google.protobuf.TextFormat$Printer.printField(TextFormat.java:286)
at com.google.protobuf.TextFormat$Printer.print(TextFormat.java:273)
at
com.google.protobuf.TextFormat$Printer.printFieldValue(TextFormat.java:404)
at
com.google.protobuf.TextFormat$Printer.printSingleField(TextFormat.java:327)
at
com.google.protobuf.TextFormat$Printer.printField(TextFormat.java:286)
at com.google.protobuf.TextFormat$Printer.print(TextFormat.java:273)
at
com.google.protobuf.TextFormat$Printer.printFieldValue(TextFormat.java:404)
at
com.google.protobuf.TextFormat$Printer.printSingleField(TextFormat.java:327)
at
com.google.protobuf.TextFormat$Printer.printField(TextFormat.java:286)
at com.google.protobuf.TextFormat$Printer.print(TextFormat.java:273)
at
com.google.protobuf.TextFormat$Printer.printFieldValue(TextFormat.java:404)
at
com.google.protobuf.TextFormat$Printer.printSingleField(TextFormat.java:327)
at
com.google.protobuf.TextFormat$Printer.printField(TextFormat.java:283)
at com.google.protobuf.TextFormat$Printer.print(TextFormat.java:273)
at
com.google.protobuf.TextFormat$Printer.printFieldValue(TextFormat.java:404)
at
com.google.protobuf.TextFormat$Printer.printSingleField(TextFormat.java:327)
at
com.google.protobuf.TextFormat$Printer.printField(TextFormat.java:283)
at com.google.protobuf.TextFormat$Printer.print(TextFormat.java:273)
at
com.google.protobuf.TextFormat$Printer.printFieldValue(TextFormat.java:404)
at
com.google.protobuf.TextFormat$Printer.printSingleField(TextFormat.java:327)
at
com.google.protobuf.TextFormat$Printer.printField(TextFormat.java:286)
at com.google.protobuf.TextFormat$Printer.print(TextFormat.java:273)
at
com.google.protobuf.TextFormat$Printer.access$400(TextFormat.java:248)
at
com.google.protobuf.TextFormat.shortDebugString(TextFormat.java:88)
FAILED: Execution Error, return code -101 from
org.apache.hadoop.hive.ql.exec.tez.TezTask. Java heap space
It looks like the job is not getting submitted to the cluster, but running
locally. We can't get tez to run the query on the cluster.
The hive shell starts with an Xmx of 4G.
If I set hive.execution.engine = mr, then the query works, because it runs
on the hadoop cluster.
What should we change to avoid this problem?
Thanx
--
Regards,
Premal Shah.
