IMPALA-10225: bump impyla version to 0.17a1

Update a couple of tests with the new improved error messages.

Change-Id: I70a0e883275f3c29e2b01fd5bab7725857c8a1ed
Reviewed-on: http://gerrit.cloudera.org:8080/16562
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>

fe/src/test/java/org/apache/impala/customcluster/LdapImpylaHttpTest.java

@@ -96,10 +96,12 @@ public class LdapImpylaHttpTest {
     RunShellCommand.Run(validCmd, /*shouldSucceed*/ true, testUser_, "");
     // 2. Invalid username password combination. Should fail.
     String[] invalidCmd = buildCommand("foo", "bar", null);
-    RunShellCommand.Run(invalidCmd, /*shouldSucceed*/ false, "", "EOFError");
+    RunShellCommand.Run(
+        invalidCmd, /*shouldSucceed*/ false, "", "HTTP code 401: Unauthorized");
     // 3. Without username and password. Should fail.
     String[] noAuthCmd = {"impala-python", helper_, "--query", query_};
-    RunShellCommand.Run(noAuthCmd, /*shouldSucceed*/ false, "", "EOFError");
+    RunShellCommand.Run(
+        noAuthCmd, /*shouldSucceed*/ false, "", "HTTP code 401: Unauthorized");
   }
 
   private String[] buildCommand(String user, String password, String httpPath) {

infra/python/deps/compiled-requirements.txt

@@ -19,7 +19,7 @@
 # after the toolchain is bootstrapped. Installed after requirements.txt
 
 argparse == 1.4.0
-impyla == 0.16.2
+impyla == 0.17a1
   bitarray == 1.2.1
   sasl == 0.2.1
   six == 1.14.0