Fixed Issues in Apache Impala

Review the list of Impala issues that are resolved in Cloudera Runtime 7.1.7 SP3.

CDPD-64913: Crash in ScanRange::ReadSubRanges() when using HDFS caching: When using HDFS caching, subrange reads are copying memory from the HDFS cache buffer into the output buffer. When the HDFS cache buffer starts at an offset into the file, the subrange offsets need to be adjusted to point to the relative place within the cache buffer. This fixes the calculation to use the relative locations.

Apache Patch Information