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Posted to commits@impala.apache.org by lv...@apache.org on 2017/02/16 21:03:45 UTC

[4/5] incubator-impala git commit: Revert "IMPALA-4829: Change default Kudu read behavior for "RYW""

Revert "IMPALA-4829: Change default Kudu read behavior for "RYW""

Reverting until we have a fix for KUDU-1869:
Scans do not work with hybrid time disabled and snapshot
reads enabled

This reverts commit 32ff959814646458a34278500bd01fc7741951ce.

Change-Id: I995dec543946c9e0f79bc5b7e82568060a9d8262
Reviewed-on: http://gerrit.cloudera.org:8080/5970
Reviewed-by: Matthew Jacobs <mj...@cloudera.com>
Tested-by: Impala Public Jenkins


Project: http://git-wip-us.apache.org/repos/asf/incubator-impala/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-impala/commit/bd1d445b
Tree: http://git-wip-us.apache.org/repos/asf/incubator-impala/tree/bd1d445b
Diff: http://git-wip-us.apache.org/repos/asf/incubator-impala/diff/bd1d445b

Branch: refs/heads/master
Commit: bd1d445b37f3cfc56ff868a678caf161b29a9d92
Parents: ffd297b
Author: Matthew Jacobs <mj...@cloudera.com>
Authored: Fri Feb 10 14:21:32 2017 -0800
Committer: Impala Public Jenkins <im...@gerrit.cloudera.org>
Committed: Wed Feb 15 22:45:50 2017 +0000

----------------------------------------------------------------------
 be/src/exec/kudu-scanner.cc | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/bd1d445b/be/src/exec/kudu-scanner.cc
----------------------------------------------------------------------
diff --git a/be/src/exec/kudu-scanner.cc b/be/src/exec/kudu-scanner.cc
index 8b6778f..d251eba 100644
--- a/be/src/exec/kudu-scanner.cc
+++ b/be/src/exec/kudu-scanner.cc
@@ -44,9 +44,8 @@ using kudu::client::KuduScanBatch;
 using kudu::client::KuduSchema;
 using kudu::client::KuduTable;
 
-DEFINE_string(kudu_read_mode, "READ_AT_SNAPSHOT", "(Advanced) Sets the Kudu scan "
-    "ReadMode. Supported Kudu read modes are READ_LATEST and READ_AT_SNAPSHOT. Invalid "
-    "values result in using READ_AT_SNAPSHOT.");
+DEFINE_string(kudu_read_mode, "READ_LATEST", "(Advanced) Sets the Kudu scan ReadMode. "
+    "Supported Kudu read modes are READ_LATEST and READ_AT_SNAPSHOT.");
 DEFINE_bool(pick_only_leaders_for_tests, false,
             "Whether to pick only leader replicas, for tests purposes only.");
 DEFINE_int32(kudu_scanner_keep_alive_period_sec, 15,
@@ -57,7 +56,7 @@ DECLARE_int32(kudu_operation_timeout_ms);
 
 namespace impala {
 
-const string MODE_READ_LATEST = "READ_LATEST";
+const string MODE_READ_AT_SNAPSHOT = "READ_AT_SNAPSHOT";
 
 KuduScanner::KuduScanner(KuduScanNode* scan_node, RuntimeState* state)
   : scan_node_(scan_node),
@@ -138,9 +137,9 @@ Status KuduScanner::OpenNextScanToken(const string& scan_token)  {
                          "Could not set replica selection.");
   }
   kudu::client::KuduScanner::ReadMode mode =
-      MODE_READ_LATEST == FLAGS_kudu_read_mode ?
-          kudu::client::KuduScanner::READ_LATEST :
-          kudu::client::KuduScanner::READ_AT_SNAPSHOT;
+      MODE_READ_AT_SNAPSHOT == FLAGS_kudu_read_mode ?
+          kudu::client::KuduScanner::READ_AT_SNAPSHOT :
+          kudu::client::KuduScanner::READ_LATEST;
   KUDU_RETURN_IF_ERROR(scanner_->SetReadMode(mode), "Could not set scanner ReadMode");
   KUDU_RETURN_IF_ERROR(scanner_->SetTimeoutMillis(FLAGS_kudu_operation_timeout_ms),
       "Could not set scanner timeout");