[phoenix] branch 4.x-HBase-1.4 updated: PHOENIX-5291 Ensure that Phoenix coprocessor close all scanners.

[larsh]

This is an automated email from the ASF dual-hosted git repository.

larsh pushed a commit to branch 4.x-HBase-1.4
in repository https://gitbox.apache.org/repos/asf/phoenix.git


The following commit(s) were added to refs/heads/4.x-HBase-1.4 by this push:
     new cd59f27  PHOENIX-5291 Ensure that Phoenix coprocessor close all 
scanners.
cd59f27 is described below

commit cd59f2787f883457fa7e71cbc2529d9302266883
Author: Lars Hofhansl <la...@apache.org>
AuthorDate: Wed May 22 22:38:20 2019 -0700

    PHOENIX-5291 Ensure that Phoenix coprocessor close all scanners.
---
 .../coprocessor/UngroupedAggregateRegionObserver.java   | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git 
a/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
 
b/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
index a965a87..f6569f5 100644
--- 
a/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
+++ 
b/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
@@ -1181,7 +1181,7 @@ public class UngroupedAggregateRegionObserver extends 
BaseScannerRegionObserver
         long rowCount = 0; // in case of async, we report 0 as number of rows 
updated
         StatisticsCollectionRunTracker statsRunTracker =
                 StatisticsCollectionRunTracker.getInstance(config);
-        boolean runUpdateStats = 
statsRunTracker.addUpdateStatsCommandRegion(region.getRegionInfo(),scan.getFamilyMap().keySet());
+        final boolean runUpdateStats = 
statsRunTracker.addUpdateStatsCommandRegion(region.getRegionInfo(),scan.getFamilyMap().keySet());
         if (runUpdateStats) {
             if (!async) {
                 rowCount = callable.call();
@@ -1210,8 +1210,11 @@ public class UngroupedAggregateRegionObserver extends 
BaseScannerRegionObserver
 
             @Override
             public void close() throws IOException {
-                // No-op because we want to manage closing of the inner 
scanner ourselves.
-                // This happens inside StatsCollectionCallable.
+                // If we ran/scheduled StatsCollectionCallable the delegate
+                // scanner is closed there. Otherwise close it here.
+                if (!runUpdateStats) {
+                    super.close();
+                }
             }
 
             @Override
@@ -1448,6 +1451,14 @@ public class UngroupedAggregateRegionObserver extends 
BaseScannerRegionObserver
                                             + fullTableName);
                                 Scan scan = new Scan();
                                 scan.setMaxVersions();
+
+                                // close the passed scanner since we are 
returning a brand-new one
+                                try {
+                                    if (s != null) {
+                                        s.close();
+                                    }
+                                } catch (IOException ignore) {}
+
                                 return new StoreScanner(store, 
store.getScanInfo(), scan, scanners,
                                     ScanType.COMPACT_RETAIN_DELETES, 
store.getSmallestReadPoint(),
                                     HConstants.OLDEST_TIMESTAMP);