question Re: IllegalArgumentException in Create Table Hive with SerDe in Support Questions

IllegalArgumentException in Create Table Hive with SerDe

marcusbu — Wed, 13 Jul 2016 21:38:51 GMT

Hello everyone,

I am trying to integrate Hive with an HBase instance that uses Avro to store data. I have followed the procedure described in the documentation here. In HBase I have one table called 'events' with one column family (masterdata) and one payload column (payload).

The stack is running on Hortonworks 2.4:

Hive: 1.2.1,

Hbase: 1.1.2

HDFS: 2.7.1

The procedure to create the table in Hive is stored as setup.hql:

CREATE EXTERNAL TABLE masterdata_events
ROW FORMAT SERDE 'org.apache.hadoop.hive.hbase.HBaseSerDe'
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'
WITH SERDEPROPERTIES (
  "hbase.columns.mapping" = ":key,masterdata:payload",
  "masterdata.payload.serialization.type"="avro",
  "masterdata.payload.avro.schema.url" = 'hdfs://cluster/schema.avsc',
  "hive.serialization.extend.nesting.levels" = "true"
)
TBLPROPERTIES ("hbase.table.name" = "events", "hbase.struct.autogenerate"="true");

I run it with 'hive -f setup.hql'. The output is as follows:

OK
Time taken: 2.625 seconds
OK
Time taken: 3.301 seconds
OK
Time taken: 0.066 seconds
FAILED: IllegalArgumentException Error: : expected at the end of 'string:struct<product:struct<productmain:struct<id:string,...so on and so on ...>'

Now, I would like to point out that the amount of characters between the two single quotes is 4008. After a search on google, I have found an answer from another user in this community stating that you have to increase the size of the SERDE_PARAMS in the Hive Metadata store. Now, despite the workaround, I am still experiencing the same issue. I have also tried to use "masterdata.payload.avro.schema.literal" as well, but nothing has changed. The avro schema is valid json (verified).

Could you please give me any hints?

Re: IllegalArgumentException in Create Table Hive with SerDe

asinghal — Thu, 14 Jul 2016 18:25:38 GMT

have you added following property in TBLPROPERTIES

"hbase.struct.autogenerate"= "true"

This allows you to avoid manually creating the columns and types for Avro schemas

And ,I think hive.serialization.extend.nesting.levels may not be in affect as it is used by lazySimpleSerde

Re: IllegalArgumentException in Create Table Hive with SerDe

marcusbu — Thu, 14 Jul 2016 20:57:02 GMT

Thanks a lot for your answer, @Ankit Singhal! Yes, I have added the property

"hbase.struct.autogenerate" = "true"

in the setup.hql file. In regards to the "hive.serialization.extend.nesting.levels", I had to add it, because I was receiving an error message like this:

ERROR ql.Driver: FAILED: SemanticException 
org.apache.hadoop.hive.serde2.SerDeException: Number of levels of 
nesting supported for LazySimpleSerde is 8 Unable to work with 9 levels

or something similar. After I added that line, it started working just to break to IllegalArgumentException - I am not sure if they are somehow related (?).