Exception:
2017-06-21 22:47:49,993 FATAL ExecMapper (main): org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing writable org.apache.hadoop.dynamodb.DynamoDBItemWritable@2e17578f
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:643)
at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:149)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:441)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:377)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1132)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: java.lang.RuntimeException: Exception while processing record: org.apache.hadoop.dynamodb.DynamoDBItemWritable@2e17578f
at org.apache.hadoop.hive.dynamodb.DynamoDBObjectInspector.getColumnData(DynamoDBObjectInspector.java:136)
at org.apache.hadoop.hive.dynamodb.DynamoDBObjectInspector.getStructFieldData(DynamoDBObjectInspector.java:97)
at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters$StructConverter.convert(ObjectInspectorConverters.java:328)
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:626)
... 9 more
Caused by: java.lang.NumberFormatException: For input string: "17664956244983174066"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Long.parseLong(Long.java:444)
at java.lang.Long.parseLong(Long.java:483)
at org.apache.hadoop.hive.dynamodb.DynamoDBDataParser.getNumberObject(DynamoDBDataParser.java:179)
at org.apache.hadoop.hive.dynamodb.type.HiveDynamoDBNumberType.getHiveData(HiveDynamoDBNumberType.java:28)
at org.apache.hadoop.hive.dynamodb.DynamoDBObjectInspector.getColumnData(DynamoDBObjectInspector.java:128)
... 12 more
The hive query I am sending is:
INSERT OVERWRITE TABLE temp_1
SELECT * FROM temp_2
WHERE t_id="17664956244983174066" and t_ts="636214684577250000000";
Is this number too big to be converted to int? I even tried sending 17664956244983174066
without quotes but i get the same exception.
t_id
is defined as BIGINT
in hive table
and N
or Number in dynamobd
EDIT:
I tried by defining t_id
as string
==> Schema mismatch as dynamodb stores this as int
t_id
as double
==>> precision lost. no match.
What can be the solution here?
Is this number too big to be converted to int?
Yes, this number is too big to convert to an integral type. According to the Apache Hive documentation on Numeric Types, the maximum value for a BIGINT
is 9223372036854775807. Your input, 17664956244983174066, is larger than that.
The following is a vanilla Hive query (no DynamoDB integration) demonstrating the effects of attempting to convert various inputs to a BIGINT
.
SELECT
"9223372036854775807" AS str,
cast("9223372036854775807" AS BIGINT) AS numbigint,
cast("9223372036854775807" AS DOUBLE) AS numdouble
UNION ALL
SELECT
"9223372036854775808" AS str,
cast("9223372036854775808" AS BIGINT) AS numbigint,
cast("9223372036854775808" AS DOUBLE) AS numdouble
UNION ALL
SELECT
"17664956244983174066" AS str,
cast("17664956244983174066" AS BIGINT) AS numbigint,
cast("17664956244983174066" AS DOUBLE) AS numdouble
;
str numbigint numdouble
0 9223372036854775807 9223372036854775807 9.2233720368547758e+18
1 9223372036854775808 NULL 9.2233720368547758e+18
2 17664956244983174066 NULL 1.7664956244983173e+19
At the documented maximum value of BIGINT
, the value converts correctly. At just 1 higher, the conversion fails, resulting in NULL
. The same thing happens for your input.
The query also demonstrates that conversion to DOUBLE
is successful. Perhaps that's a solution, depending on your use case. Compared to an integral data type, this would open a risk of encountering floating point precision issues.
From your stack trace, it appears that the DynamoDB integration results in a NumberFormatException
for this case rather than NULL
. This is arguably a bug in the DynamoDB connector, but even if it were changed to map to NULL
, you still wouldn't have a successful conversion.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With