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Posted to oak-commits@jackrabbit.apache.org by ch...@apache.org on 2017/10/26 04:27:58 UTC

svn commit: r1813364 - in /jackrabbit/oak/branches/1.6: ./ oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/IndexNodeManager.java oak-lucene/src/test/java/org/apache/jackrabbit/oak/plugins/index/lucene/hybrid/ReaderRefCountIT.java

Author: chetanm
Date: Thu Oct 26 04:27:58 2017
New Revision: 1813364

URL: http://svn.apache.org/viewvc?rev=1813364&view=rev
Log:
OAK-6635 - IndexReader closed exception in DocumentQueue

Merging 1809289

Modified:
    jackrabbit/oak/branches/1.6/   (props changed)
    jackrabbit/oak/branches/1.6/oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/IndexNodeManager.java
    jackrabbit/oak/branches/1.6/oak-lucene/src/test/java/org/apache/jackrabbit/oak/plugins/index/lucene/hybrid/ReaderRefCountIT.java

Propchange: jackrabbit/oak/branches/1.6/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Thu Oct 26 04:27:58 2017
@@ -1,3 +1,3 @@
 /jackrabbit/oak/branches/1.0:1665962
-/jackrabbit/oak/trunk:1781068,1781075,1781248,1781386,1781846,1781907,1782000,1782029,1782196,1782447,1782476,1782770,1782945,1782966,1782973,1782990,1783061,1783066,1783089,1783104-1783105,1783110,1783619,1783720,1783731,1783733,1783738,1783742,1783773,1783855,1783891,1784023,1784034,1784130,1784162,1784251,1784401,1784551,1784574,1784689,1785095,1785108,1785283,1785838,1785917,1785919,1785946,1786122,1787074,1787145,1787217,1787425,1788056,1788378,1788387-1788389,1788463,1788476,1788850,1789056,1789534,1790382,1792049,1792463,1792742,1792746,1793013,1793088,1793618,1793627,1793644,1794393,1794417,1794683,1795138,1795314,1795330,1795475,1795488,1795491,1795502,1795594,1795613,1795618,1796144,1796230,1796239,1796274,1796278,1796988,1798035,1798834,1799219,1799389,1799393,1799924,1800269,1800606,1800613,1800974,1801011,1801013,1801118-1801119,1801675,1802260,1802262,1802286,1802548,1802934,1802938,1802973,1803026,1803247-1803249,1803951,1803953-1803955,1805851-1805852,1806668,1807308
 ,1807688,1808125,1808128,1808142,1808240,1808246,1809024,1809026,1809131,1809163,1809253,1809255-1809256,1811655,1813192
+/jackrabbit/oak/trunk:1781068,1781075,1781248,1781386,1781846,1781907,1782000,1782029,1782196,1782447,1782476,1782770,1782945,1782966,1782973,1782990,1783061,1783066,1783089,1783104-1783105,1783110,1783619,1783720,1783731,1783733,1783738,1783742,1783773,1783855,1783891,1784023,1784034,1784130,1784162,1784251,1784401,1784551,1784574,1784689,1785095,1785108,1785283,1785838,1785917,1785919,1785946,1786122,1787074,1787145,1787217,1787425,1788056,1788378,1788387-1788389,1788463,1788476,1788850,1789056,1789534,1790382,1792049,1792463,1792742,1792746,1793013,1793088,1793618,1793627,1793644,1794393,1794417,1794683,1795138,1795314,1795330,1795475,1795488,1795491,1795502,1795594,1795613,1795618,1796144,1796230,1796239,1796274,1796278,1796988,1798035,1798834,1799219,1799389,1799393,1799924,1800269,1800606,1800613,1800974,1801011,1801013,1801118-1801119,1801675,1802260,1802262,1802286,1802548,1802934,1802938,1802973,1803026,1803247-1803249,1803951,1803953-1803955,1805851-1805852,1806668,1807308
 ,1807688,1808125,1808128,1808142,1808240,1808246,1809024,1809026,1809131,1809163,1809253,1809255-1809256,1809289,1811655,1813192
 /jackrabbit/trunk:1345480

Modified: jackrabbit/oak/branches/1.6/oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/IndexNodeManager.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.6/oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/IndexNodeManager.java?rev=1813364&r1=1813363&r2=1813364&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.6/oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/IndexNodeManager.java (original)
+++ jackrabbit/oak/branches/1.6/oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/IndexNodeManager.java Thu Oct 26 04:27:58 2017
@@ -22,6 +22,7 @@ import static com.google.common.base.Pre
 import java.io.IOException;
 import java.util.Collections;
 import java.util.List;
+import java.util.concurrent.Semaphore;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.locks.ReadWriteLock;
@@ -93,10 +94,18 @@ public class IndexNodeManager {
 
     private final ReaderRefreshPolicy refreshPolicy;
 
+    private final Semaphore refreshLock = new Semaphore(1);
+
     private final Runnable refreshCallback = new Runnable() {
         @Override
         public void run() {
-            refreshReaders();
+            if (refreshLock.tryAcquire()) {
+                try {
+                    refreshReaders();
+                }finally {
+                    refreshLock.release();
+                }
+            }
         }
     };
 
@@ -141,7 +150,14 @@ public class IndexNodeManager {
             boolean success = false;
             try {
                 refreshPolicy.refreshOnReadIfRequired(refreshCallback);
-                IndexNode indexNode = new IndexNodeImpl(searcherHolder);
+                SearcherHolder local = searcherHolder;
+                int tryCount = 0;
+                while (!local.searcher.getIndexReader().tryIncRef()) {
+                    checkState(++tryCount < 10, "Not able to " +
+                            "get open searcher in %s attempts", tryCount);
+                    local = searcherHolder;
+                }
+                IndexNode indexNode = new IndexNodeImpl(local);
                 success = true;
                 return indexNode;
             } finally {
@@ -245,10 +261,6 @@ public class IndexNodeManager {
         decrementSearcherUsageCount(holder.searcher);
     }
 
-    private static void incrementSearcherUsageCount(IndexSearcher searcher) {
-        searcher.getIndexReader().incRef();
-    }
-
     private void decrementSearcherUsageCount(IndexSearcher searcher) {
         try {
             //Decrement the count by 1 as we increased it while creating the searcher
@@ -276,8 +288,6 @@ public class IndexNodeManager {
 
         private IndexNodeImpl(SearcherHolder searcherHolder) {
             this.holder = searcherHolder;
-            //Increment on each acquire
-            incrementSearcherUsageCount(holder.searcher);
         }
 
         @Override

Modified: jackrabbit/oak/branches/1.6/oak-lucene/src/test/java/org/apache/jackrabbit/oak/plugins/index/lucene/hybrid/ReaderRefCountIT.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.6/oak-lucene/src/test/java/org/apache/jackrabbit/oak/plugins/index/lucene/hybrid/ReaderRefCountIT.java?rev=1813364&r1=1813363&r2=1813364&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.6/oak-lucene/src/test/java/org/apache/jackrabbit/oak/plugins/index/lucene/hybrid/ReaderRefCountIT.java (original)
+++ jackrabbit/oak/branches/1.6/oak-lucene/src/test/java/org/apache/jackrabbit/oak/plugins/index/lucene/hybrid/ReaderRefCountIT.java Thu Oct 26 04:27:58 2017
@@ -45,7 +45,6 @@ import org.apache.jackrabbit.oak.stats.S
 import org.apache.lucene.document.Document;
 import org.apache.lucene.search.MatchAllDocsQuery;
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
@@ -64,7 +63,7 @@ public class ReaderRefCountIT {
 
     private NodeState root = INITIAL_CONTENT;
     private IndexCopier indexCopier;
-    private int runTimeInSecs = 60;
+    private int runTimeInSecs = 50;
     private int noOfThread = 5;
 
     @Before
@@ -72,7 +71,6 @@ public class ReaderRefCountIT {
         indexCopier = new IndexCopier(sameThreadExecutor(), temporaryFolder.getRoot());
     }
 
-    @Ignore("OAK-6635")
     @Test
     public void syncIndex() throws Exception{
         IndexDefinitionBuilder idx = new IndexDefinitionBuilder();
@@ -83,7 +81,6 @@ public class ReaderRefCountIT {
         runMultiReaderScenario(idx, nrtFactory);
     }
 
-    @Ignore("OAK-6635")
     @Test
     public void nrtIndex() throws Exception{
         IndexDefinitionBuilder idx = new IndexDefinitionBuilder();
@@ -176,6 +173,8 @@ public class ReaderRefCountIT {
             t.join();
         }
 
+        nrtFactory.close();
+
         if (!exceptionList.isEmpty()) {
             StringWriter sw = new StringWriter();
             PrintWriter pw = new PrintWriter(sw);