Thomas Tauber-Marshall 3fd6f60b22 IMPALA-9414 (part 2): Support the 'Expect: 100-continue' http header ...

The 'Expect: 100-continue' http header allows http clients to send
only the headers for their request, get a confirmation back from the
server that the headers are valid, and only then send the body of the
request, avoiding the overhead of sending large requests that will
ultimately fail.

This patch adds support for this in the HS2 HTTP server by having
THttpServer look for the header, and if it's present and the request
is validated returning a '100 Continue' response before reading the
body of the request.

It also adds supports for using this header on large requests sent by
impala-shell.

Testing:
- This case is covered by the existing test_large_sql, however that
  test was previously broken and passing spuriously. This patch fixes
  the test.
- Passed all other shell tests.

Change-Id: I4153968551acd58b25c7923c2ebf75ee29a7e76b
Reviewed-on: http://gerrit.cloudera.org:8080/15284
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Reviewed-by: Thomas Tauber-Marshall <tmarshall@cloudera.com>

2020-03-13 17:00:42 +00:00

3.3 KiB

Executable File

Raw Blame History

View Raw