Github user parthchandra commented on the issue:
https://github.com/apache/drill/pull/1144
AFAIK, IndexOutOfBoundsException is thrown by Netty when a write to a
DrillBuf goes out of bounds (see
https://github.com/netty/netty/blob/netty-4.0.48.Final/buffer/src/main/java/io/netty/buffer/AbstractByteBuf.java#L1123
and
https://github.com/netty/netty/blob/netty-4.0.48.Final/buffer/src/main/java/io/netty/buffer/UnsafeByteBufUtil.java#L283
).
This is independent of the bounds check in Drill which may be disabled.---
