tree f798a61e9a5e551f68832a9a06dbf9d006fb6d9a
parent 1308eae519a613873c85ee6c16a0a6ce766ffb72
author Murtadha Hubail <mhubail@uci.edu> 1498659963 +0300
committer Murtadha Hubail <hubailmor@gmail.com> 1498665299 -0700

[ASTERIXDB-1961][IDX] Prevent NPE in cursor during cancellation

- user model changes: no
- interface changes: no
- storage format changes: no

Details:
- Prevent NPE in cursor when an interruption happens during
cursors initialization.
- Keep track of interruption stack trace to help in diagnosing
future similar issues.

Change-Id: I6937d14bc79d6583bb62c1d7b726ab0f26a59d79
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1856
Reviewed-by: abdullah alamoudi <bamousaa@gmail.com>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
BAD: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Yingyi Bu <buyingyi@gmail.com>