> Failure in data loading due to bugs in delta-integer-codec
> ----------------------------------------------------------
>
> Key: CARBONDATA-1267
> URL:
https://issues.apache.org/jira/browse/CARBONDATA-1267> Project: CarbonData
> Issue Type: Bug
> Components: core, data-load
> Affects Versions: 1.1.0
> Environment: suse11.3
> Reporter: xuchuanyin
> Priority: Critical
> Fix For: 1.2.0
>
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> ## BRIEF
> when encoding column value by DeltaIntegerCodec, SHORT_INT may be a target type, but this value doesnot exist in swith-case branch, so exception will be thrown in some case.
> ## ANALYZE：
> This error occurs in particular situation. In my case, there is a measure column called` BEGIN_TIME` and its datatype is `LONG`. When encoding this measure, carbondata use the statistic information `(min: 1497376581, max: 1497423838, decimal: 0 )` and finally decide to use `DeltaIntegerCodec` encoder with source datatype `LONG` and target datatype `SHORT_INT(a internal datatype using three bytes)`. But the encode method in `DeltaIntegerCodec` does not consider this situation, so exception will be thrown.
> # ERROR
> Detail error message is shown below:
> java.lang.RuntimeException: internal error: org.apache.carbondata.core.datastore.page.encoding.DeltaIntegerCodec[src type: LONG, target type: SHORT_INT, stats(min: 1497376581, max: 1497423838, decimal: 0 )]
> at org.apache.carbondata.core.datastore.page.encoding.DeltaIntegerCodec$1.encode(DeltaIntegerCodec.java:147)
> at org.apache.carbondata.core.datastore.page.SafeFixLengthColumnPage.encode(SafeFixLengthColumnPage.java:324)
> at org.apache.carbondata.core.datastore.page.encoding.DeltaIntegerCodec.encode(DeltaIntegerCodec.java:71)
> at org.apache.carbondata.processing.store.TablePageEncoder.encodeAndCompressMeasures(TablePageEncoder.java:75)
> at org.apache.carbondata.processing.store.TablePageEncoder.encode(TablePageEncoder.java:64)
> at org.apache.carbondata.processing.store.CarbonFactDataHandlerColumnar.processDataRows(CarbonFactDataHandlerColumnar.java:364)
> at org.apache.carbondata.processing.store.CarbonFactDataHandlerColumnar.access$500(CarbonFactDataHandlerColumnar.java:65)
> at org.apache.carbondata.processing.store.CarbonFactDataHandlerColumnar$Producer.call(CarbonFactDataHandlerColumnar.java:749)
> at org.apache.carbondata.processing.store.CarbonFactDataHandlerColumnar$Producer.call(CarbonFactDataHandlerColumnar.java:726)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:748)
Locked
