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From akuznet...@apache.org
Subject [34/50] incubator-ignite git commit: ignite-718 - minor + test
Date Mon, 13 Apr 2015 07:03:36 GMT
ignite-718 - minor + test


Project: http://git-wip-us.apache.org/repos/asf/incubator-ignite/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-ignite/commit/37f8fbe9
Tree: http://git-wip-us.apache.org/repos/asf/incubator-ignite/tree/37f8fbe9
Diff: http://git-wip-us.apache.org/repos/asf/incubator-ignite/diff/37f8fbe9

Branch: refs/heads/ignite-sprint-4
Commit: 37f8fbe97d4705d087331e3ba3c9a0595072979d
Parents: 6a53351
Author: S.Vladykin <svladykin@gridgain.com>
Authored: Sat Apr 11 20:32:13 2015 +0300
Committer: S.Vladykin <svladykin@gridgain.com>
Committed: Sat Apr 11 20:32:13 2015 +0300

----------------------------------------------------------------------
 .../apache/ignite/IgniteSystemProperties.java   |   7 ++
 .../query/h2/twostep/GridMergeIndex.java        |  12 ++-
 .../cache/IgniteCacheLargeResultSelfTest.java   | 104 +++++++++++++++++++
 3 files changed, 118 insertions(+), 5 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/37f8fbe9/modules/core/src/main/java/org/apache/ignite/IgniteSystemProperties.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/IgniteSystemProperties.java b/modules/core/src/main/java/org/apache/ignite/IgniteSystemProperties.java
index c4b30d6..ca7857c 100644
--- a/modules/core/src/main/java/org/apache/ignite/IgniteSystemProperties.java
+++ b/modules/core/src/main/java/org/apache/ignite/IgniteSystemProperties.java
@@ -337,6 +337,13 @@ public final class IgniteSystemProperties {
     public static final String IGNITE_JCACHE_DEFAULT_ISOLATED = "IGNITE_CACHE_CLIENT";
 
     /**
+     * Property controlling maximum number of SQL result rows which can be fetched into a
merge table.
+     * If there are less rows than this threshold then multiple passes throw a table will
be possible,
+     * otherwise only one pass (e.g. only result streaming is possible).
+     */
+    public static final String IGNITE_SQL_MERGE_TABLE_MAX_SIZE = "IGNITE_SQL_MERGE_TABLE_MAX_SIZE";
+
+    /**
      * Enforces singleton.
      */
     private IgniteSystemProperties() {

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/37f8fbe9/modules/indexing/src/main/java/org/apache/ignite/internal/processors/query/h2/twostep/GridMergeIndex.java
----------------------------------------------------------------------
diff --git a/modules/indexing/src/main/java/org/apache/ignite/internal/processors/query/h2/twostep/GridMergeIndex.java
b/modules/indexing/src/main/java/org/apache/ignite/internal/processors/query/h2/twostep/GridMergeIndex.java
index 5138013..407341e 100644
--- a/modules/indexing/src/main/java/org/apache/ignite/internal/processors/query/h2/twostep/GridMergeIndex.java
+++ b/modules/indexing/src/main/java/org/apache/ignite/internal/processors/query/h2/twostep/GridMergeIndex.java
@@ -30,15 +30,17 @@ import java.util.*;
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.*;
 
+import static org.apache.ignite.IgniteSystemProperties.*;
+
 /**
  * Merge index.
  */
 public abstract class GridMergeIndex extends BaseIndex {
     /** */
-    private static final int MAX_FETCH_SIZE = 100000; // TODO configure
+    private static final int MAX_FETCH_SIZE = getInteger(IGNITE_SQL_MERGE_TABLE_MAX_SIZE,
10_000);
 
     /** All rows number. */
-    private final AtomicInteger rowsCnt = new AtomicInteger(0);
+    private final AtomicInteger expectedRowsCnt = new AtomicInteger(0);
 
     /** Remaining rows per source node ID. */
     private final ConcurrentMap<UUID, Counter> remainingRows = new ConcurrentHashMap8<>();
@@ -74,7 +76,7 @@ public abstract class GridMergeIndex extends BaseIndex {
 
     /** {@inheritDoc} */
     @Override public long getRowCount(Session session) {
-        return rowsCnt.get();
+        return expectedRowsCnt.get();
     }
 
     /** {@inheritDoc} */
@@ -114,7 +116,7 @@ public abstract class GridMergeIndex extends BaseIndex {
             assert !cnt.initialized : "Counter is already initialized.";
 
             cnt.addAndGet(allRows);
-            rowsCnt.addAndGet(allRows);
+            expectedRowsCnt.addAndGet(allRows);
 
             // We need this separate flag to handle case when the first source contains only
one page
             // and it will signal that all remaining counters are zero and fetch is finished.
@@ -167,7 +169,7 @@ public abstract class GridMergeIndex extends BaseIndex {
      * @return {@code true} If we have fetched all the remote rows.
      */
     public boolean fetchedAll() {
-        return fetchedCnt == rowsCnt.get();
+        return fetchedCnt == expectedRowsCnt.get();
     }
 
     /**

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/37f8fbe9/modules/indexing/src/test/java/org/apache/ignite/internal/processors/cache/IgniteCacheLargeResultSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/indexing/src/test/java/org/apache/ignite/internal/processors/cache/IgniteCacheLargeResultSelfTest.java
b/modules/indexing/src/test/java/org/apache/ignite/internal/processors/cache/IgniteCacheLargeResultSelfTest.java
new file mode 100644
index 0000000..3f88ad6
--- /dev/null
+++ b/modules/indexing/src/test/java/org/apache/ignite/internal/processors/cache/IgniteCacheLargeResultSelfTest.java
@@ -0,0 +1,104 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite.internal.processors.cache;
+
+import org.apache.ignite.*;
+import org.apache.ignite.cache.*;
+import org.apache.ignite.cache.query.*;
+import org.apache.ignite.configuration.*;
+import org.apache.ignite.spi.discovery.tcp.*;
+import org.apache.ignite.spi.discovery.tcp.ipfinder.*;
+import org.apache.ignite.spi.discovery.tcp.ipfinder.vm.*;
+import org.apache.ignite.testframework.junits.common.*;
+
+import java.util.*;
+
+import static org.apache.ignite.cache.CacheAtomicityMode.*;
+import static org.apache.ignite.cache.CacheMode.*;
+
+/**
+ */
+public class IgniteCacheLargeResultSelfTest extends GridCommonAbstractTest {
+    /** */
+    private static TcpDiscoveryIpFinder ipFinder = new TcpDiscoveryVmIpFinder(true);
+
+    /** {@inheritDoc} */
+    @Override protected IgniteConfiguration getConfiguration(String gridName) throws Exception
{
+        IgniteConfiguration cfg = super.getConfiguration(gridName);
+
+        TcpDiscoverySpi disco = new TcpDiscoverySpi();
+
+        disco.setIpFinder(ipFinder);
+
+        cfg.setDiscoverySpi(disco);
+
+        CacheConfiguration<?,?> cacheCfg = defaultCacheConfiguration();
+
+        cacheCfg.setCacheMode(PARTITIONED);
+        cacheCfg.setAtomicityMode(TRANSACTIONAL);
+        cacheCfg.setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC);
+        cacheCfg.setSwapEnabled(false);
+        cacheCfg.setBackups(1);
+        cacheCfg.setIndexedTypes(
+            Integer.class, Integer.class
+        );
+
+        cfg.setCacheConfiguration(cacheCfg);
+
+        return cfg;
+    }
+
+    /** {@inheritDoc} */
+    @Override protected void beforeTestsStarted() throws Exception {
+        startGridsMultiThreaded(3);
+    }
+
+    /** {@inheritDoc} */
+    @Override protected void afterTestsStopped() throws Exception {
+        stopAllGrids();
+    }
+
+    /**
+     */
+    public void testLargeResult() {
+        // Fill cache.
+        IgniteCache<Integer,Integer> c = ignite(0).cache(null);
+
+        for (int i = 0; i < 50_000; i++)  // default max merge table size is 10000
+            c.put(i, i);
+
+        try(QueryCursor<List<?>> res = c.query(
+            new SqlFieldsQuery("select _val from Integer where _key between ? and ?")
+                .setArgs(10_000, 40_000))){
+
+            int cnt = 0;
+
+            for (List<?> row : res) {
+                cnt++;
+
+                int val = (Integer)row.get(0);
+
+                assertTrue(val >= 10_000 && val <= 40_000);
+            }
+
+            assertEquals(30_001, cnt); // Streaming of a large result works well.
+        }
+
+        // Currently we have no ways to do multiple passes through a merge table.
+    }
+}


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