Thank John/Carl, Yep, there seems to be a limit on the 767 byte size. So I see the patch HIVE-1364 to set it to 4000 bytes. I'm using Db-derby, do you know if there is a limit beyond 4000 bytes?
-ray Error: Caused by: ERROR 22001: A truncation error was encountered trying to shrink VARCHAR 'segment:ITC_10#ITC_1001,segment:CITC_10#ITC_1001,segment:ITC&' to length 767. On Tue, Jun 15, 2010 at 12:26 PM, Carl Steinbach <[email protected]> wrote: > Hi Ray, > > There is currently a 767 byte size limit on SERDEPROPERTIES values (see > http://issues.apache.org/jira/browse/HIVE-1364). It's possible that you're > bumping into this limitation (assuming you abbreviated the column names in > your example). > > > On Tue, Jun 15, 2010 at 12:03 PM, John Sichi <[email protected]> wrote: > >> That exception is coming from the metastore (trying to write the table >> definition). Could you dig down into the Hive logs to see if you can get >> the underlying cause? >> >> You can get the logs to spew on console by adding "-hiveconf >> hive.root.logger=DEBUG,console" to your Hive CLI invocation. >> >> JVS >> >> On Jun 15, 2010, at 11:57 AM, Ray Duong wrote: >> >> Hi, >> >> I'm trying to map a Hbase table in Hive that contains large number of >> columns. Since Hbase is designed to be a wide table, does Hive/Hbase >> integration have any set limitation on the number of columns it can map in >> one table? I seem to hit a limit at 10 columns. >> >> Thanks, >> -ray >> >> create external table hbase_t1 >> ( >> key string, >> f1_a string, >> f2_a string, >> f1_b string, >> f2_b string, >> ... >> ... >> f1_m string, >> f2_m string, >> >> ) >> STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' >> WITH SERDEPROPERTIES ("hbase.columns.mapping" = >> ":key,f1:a,f2:a,f1:b,f2:b,f1:c,f2:c,f1:d,f2:d,f1:e,f2:e,f1:f,f2:f,f1:g,f2:g,f1:h,f2:h,f1:i,f2:i,f1:j,f2:j,f1:k,f2:k,f1:l,f2:l,f1:m,f2:m" >> ) >> TBLPROPERTIES("hbase.table.name" = "t1"); >> >> Error Message: >> >> FAILED: Error in metadata: javax.jdo.JDODataStoreException: Put request >> failed : INSERT INTO `SERDE_PARAMS` (`PARAM_VALUE`,`SERDE_ID`,`PARAM_KEY`) >> VALUES (?,?,?) >> NestedThrowables: >> org.datanucleus.store.mapped.exceptions.MappedDatastoreException: INSERT >> INTO `SERDE_PARAMS` (`PARAM_VALUE`,`SERDE_ID`,`PARAM_KEY`) VALUES (?,?,?) >> FAILED: Execution Error, return code 1 from >> org.apache.hadoop.hive.ql.exec.DDLTask >> >> >> >> >> >
