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Posted to oak-commits@jackrabbit.apache.org by re...@apache.org on 2015/03/11 14:31:29 UTC

svn commit: r1665872 - in /jackrabbit/oak/branches/1.0: ./ oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/ oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/

Author: reschke
Date: Wed Mar 11 13:31:28 2015
New Revision: 1665872

URL: http://svn.apache.org/r1665872
Log:
OAK-2582 - when invalidating the cache, just set the entry as "to be revalidated" (ported to 1.0)

Modified:
    jackrabbit/oak/branches/1.0/   (props changed)
    jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java
    jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/BasicDocumentStoreTest.java
    jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MultiDocumentStoreTest.java

Propchange: jackrabbit/oak/branches/1.0/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Mar 11 13:31:28 2015
@@ -1,2 +1,2 @@
-/jackrabbit/oak/trunk:1584578,1584602,1584614,1584616,1584709,1584781,1584937,1585297,1585304-1585305,1585420,1585424,1585427,1585448,1585465,1585468,1585486,1585497,1585509,1585647,1585655-1585656,1585661,1585665-1585666,1585669-1585670,1585673,1585680,1585719,1585763,1585770,1585896,1585904,1585907,1585940,1585949,1585951,1585956,1585962-1585963,1586287,1586320,1586364,1586372,1586655,1586836,1587130,1587224,1587399,1587408,1587472,1587485,1587488,1587538,1587580,1587807,1588033,1588042,1588046,1588066,1588201,1589025,1589101,1589137,1589141,1589263,1589440,1589442,1589484,1589488,1589661,1589664,1589682,1589708,1589741,1589748,1589789,1589794,1589850,1589864,1590628,1590660,1590684,1590697,1590701,1590980,1590988,1591101,1591226,1591229,1591293,1591314,1591317,1591362,1591374,1591381,1591438,1591467,1591552,1591704,1591713,1591715,1591723,1591874,1592487,1592512,1592658,1592665,1592677,1592742,1592744,1592787,1592809,1592955,1593036,1593048,1593061,1593133,1593210-1593211,1593231
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 /jackrabbit/trunk:1345480

Modified: jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java?rev=1665872&r1=1665871&r2=1665872&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java Wed Mar 11 13:31:28 2015
@@ -229,13 +229,13 @@ public class RDBDocumentStore implements
     @Override
     public <T extends Document> void remove(Collection<T> collection, String id) {
         delete(collection, id);
-        invalidateCache(collection, id);
+        invalidateCache(collection, id, true);
     }
 
     @Override
     public <T extends Document> void remove(Collection<T> collection, List<String> ids) {
         for (String id : ids) {
-            invalidateCache(collection, id);
+            invalidateCache(collection, id, true);
         }
         delete(collection, ids);
     }
@@ -262,19 +262,37 @@ public class RDBDocumentStore implements
 
     @Override
     public CacheInvalidationStats invalidateCache() {
-        nodesCache.invalidateAll();
+        for (NodeDocument nd : nodesCache.asMap().values()) {
+            nd.markUpToDate(0);
+        }
         return null;
     }
 
     @Override
     public <T extends Document> void invalidateCache(Collection<T> collection, String id) {
+        invalidateCache(collection, id, false);
+    }
+
+    private <T extends Document> void invalidateCache(Collection<T> collection, String id, boolean remove) {
         if (collection == Collection.NODES) {
-            Lock lock = getAndLock(id);
-            try {
-                nodesCache.invalidate(new StringValue(id));
-            } finally {
-                lock.unlock();
+            invalidateNodesCache(id, remove);
+        }
+    }
+
+    private void invalidateNodesCache(String id, boolean remove) {
+        StringValue key = new StringValue(id);
+        Lock lock = getAndLock(id);
+        try {
+            if (remove) {
+                nodesCache.invalidate(key);
+            } else {
+                NodeDocument entry = nodesCache.getIfPresent(key);
+                if (entry != null) {
+                    entry.markUpToDate(0);
+                }
             }
+        } finally {
+            lock.unlock();
         }
     }
 
@@ -667,37 +685,48 @@ public class RDBDocumentStore implements
                 // first try without lock
                 doc = nodesCache.getIfPresent(cacheKey);
                 if (doc != null) {
-                    if (maxCacheAge == Integer.MAX_VALUE || System.currentTimeMillis() - doc.getLastCheckTime() < maxCacheAge) {
-                        return castAsT(unwrap(doc));
+                    long lastCheckTime = doc.getLastCheckTime();
+                    if (lastCheckTime != 0) {
+                        if (maxCacheAge == Integer.MAX_VALUE || System.currentTimeMillis() - lastCheckTime < maxCacheAge) {
+                            return castAsT(unwrap(doc));
+                        }
                     }
                 }
             }
             try {
                 Lock lock = getAndLock(id);
-                final NodeDocument cachedDoc = doc;
                 try {
+                    // caller really wants the cache to be cleared
                     if (maxCacheAge == 0) {
-                        invalidateCache(collection, id);
+                        invalidateNodesCache(id, true);
+                        doc = null;
                     }
-                    while (true) {
-                        doc = nodesCache.get(cacheKey, new Callable<NodeDocument>() {
-                            @Override
-                            public NodeDocument call() throws Exception {
-                                NodeDocument doc = (NodeDocument) readDocumentUncached(collection, id, cachedDoc);
-                                if (doc != null) {
-                                    doc.seal();
-                                }
-                                return wrap(doc);
+                    final NodeDocument cachedDoc = doc;
+                    doc = nodesCache.get(cacheKey, new Callable<NodeDocument>() {
+                        @Override
+                        public NodeDocument call() throws Exception {
+                            NodeDocument doc = (NodeDocument) readDocumentUncached(collection, id, cachedDoc);
+                            if (doc != null) {
+                                doc.seal();
                             }
-                        });
-                        if (maxCacheAge == 0 || maxCacheAge == Integer.MAX_VALUE) {
-                            break;
+                            return wrap(doc);
                         }
-                        if (System.currentTimeMillis() - doc.getLastCheckTime() < maxCacheAge) {
-                            break;
+                    });
+                    // inspect the doc whether it can be used
+                    long lastCheckTime = doc.getLastCheckTime();
+                    if (lastCheckTime != 0 && (maxCacheAge == 0 || maxCacheAge == Integer.MAX_VALUE)) {
+                        // we either just cleared the cache or the caller does
+                        // not care;
+                    } else if (lastCheckTime != 0 && (System.currentTimeMillis() - lastCheckTime < maxCacheAge)) {
+                        // is new enough
+                    } else {
+                        // need to at least revalidate
+                        NodeDocument ndoc = (NodeDocument) readDocumentUncached(collection, id, cachedDoc);
+                        if (ndoc != null) {
+                            ndoc.seal();
                         }
-                        // too old: invalidate, try again
-                        invalidateCache(collection, id);
+                        doc = wrap(ndoc);
+                        nodesCache.put(cacheKey, doc);
                     }
                 } finally {
                     lock.unlock();

Modified: jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/BasicDocumentStoreTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/BasicDocumentStoreTest.java?rev=1665872&r1=1665871&r2=1665872&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/BasicDocumentStoreTest.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/BasicDocumentStoreTest.java Wed Mar 11 13:31:28 2015
@@ -561,8 +561,17 @@ public class BasicDocumentStoreTest exte
     }
 
     @Test
-    public void testPerfReadBigDoc() {
-        String id = this.getClass().getName() + ".testReadBigDoc";
+    public void testPerfReadBigDocCached() {
+        perfReadBigDoc(true, this.getClass().getName() + ".testReadBigDocCached");
+    }
+
+    @Test
+    public void testPerfReadBigDocAfterInvalidate() {
+        perfReadBigDoc(false, this.getClass().getName() + ".testReadBigDocAfterInvalidate");
+    }
+
+    private void perfReadBigDoc(boolean cached, String name) {
+        String id = name;
         long duration = 1000;
         int cnt = 0;
 
@@ -577,12 +586,15 @@ public class BasicDocumentStoreTest exte
 
         long end = System.currentTimeMillis() + duration;
         while (System.currentTimeMillis() < end) {
-            NodeDocument d = super.ds.find(Collection.NODES, id, 10); // allow 10ms old entries
+            if (!cached) {
+                super.ds.invalidateCache(Collection.NODES, id);
+            }
+            NodeDocument d = super.ds.find(Collection.NODES, id, 10);
             cnt += 1;
         }
 
-        LOG.info("big doc read from " + super.dsname + " was "
-                + cnt + " in " + duration + "ms (" + (cnt / (duration / 1000f)) + "/s)");
+        LOG.info("big doc read " + (cached ? "" : "(after invalidate) ") + "from " + super.dsname + " was " + cnt + " in "
+                + duration + "ms (" + (cnt / (duration / 1000f)) + "/s)");
     }
 
     @Test

Modified: jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MultiDocumentStoreTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MultiDocumentStoreTest.java?rev=1665872&r1=1665871&r2=1665872&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MultiDocumentStoreTest.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MultiDocumentStoreTest.java Wed Mar 11 13:31:28 2015
@@ -17,6 +17,7 @@
 package org.apache.jackrabbit.oak.plugins.document;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 
 import java.util.Collections;
@@ -118,4 +119,79 @@ public class MultiDocumentStoreTest exte
             assertEquals(oldn1 + 2, prev.getModCount().intValue());
         }
     }
+
+    @Test
+    public void testInvalidateCache() {
+        // use a "proper" ID because otherwise Mongo's cache invalidation will fail
+        // see OAK-2588
+        String id = "1:/" + this.getClass().getName() + ".testInvalidateCache";
+
+        // remove if present
+        NodeDocument nd = super.ds1.find(Collection.NODES, id);
+        if (nd != null) {
+            super.ds1.remove(Collection.NODES, id);
+        }
+
+        UpdateOp up = new UpdateOp(id, true);
+        up.set("_id", id);
+        up.set("_foo", "bar");
+        assertTrue(super.ds1.create(Collection.NODES, Collections.singletonList(up)));
+
+        // fill both caches
+        NodeDocument nd1 = super.ds1.find(Collection.NODES, id);
+        NodeDocument nd2 = super.ds2.find(Collection.NODES, id);
+        assertNotNull(nd1);
+        assertNotNull(nd2);
+        long firstVersion = nd1.getModCount().longValue();
+        assertEquals(firstVersion, nd2.getModCount().longValue());
+
+        // letTimeElapse();
+
+        // update through ds1
+        UpdateOp upds1 = new UpdateOp(id, true);
+        upds1.set("_id", id);
+        upds1.set("foo", "qux");
+        super.ds1.update(Collection.NODES, Collections.singletonList(id), upds1);
+        nd1 = super.ds1.find(Collection.NODES, id);
+        assertEquals("modcount should have changed in ds1", firstVersion + 1, nd1.getModCount().longValue());
+
+        // check cached version in ds2
+        nd2 = super.ds2.find(Collection.NODES, id);
+        assertEquals("ds2 should still be on first version", firstVersion, nd2.getModCount().longValue());
+
+        // check uncached version in ds2
+        nd2 = super.ds2.find(Collection.NODES, id, 0);
+        assertEquals("ds2 should now see the second version", firstVersion + 1, nd2.getModCount().longValue());
+
+        // check cached version in ds2 (was the cache refreshed?)
+        NodeDocument nd2b = super.ds2.find(Collection.NODES, id);
+        assertEquals("ds2 should now see the second version", firstVersion + 1, nd2b.getModCount().longValue());
+
+        // update through ds2
+        UpdateOp upds2 = new UpdateOp(id, true);
+        upds2.set("_id", id);
+        upds2.set("foo", "blub");
+        super.ds2.update(Collection.NODES, Collections.singletonList(id), upds1);
+        nd2 = super.ds2.find(Collection.NODES, id);
+        assertEquals("modcount should have incremented again", firstVersion + 2, nd2.getModCount().longValue());
+
+        long ds1checktime = nd1.getLastCheckTime();
+        letTimeElapse();
+
+        // try the invalidation
+        ds1.invalidateCache();
+
+        // ds1 should see the same version even when doing a cached read
+        nd1 = super.ds1.find(Collection.NODES, id);
+        assertEquals("modcount should have incremented again", firstVersion + 2, nd1.getModCount().longValue());
+        assertTrue(nd1.getLastCheckTime() > ds1checktime);
+    }
+
+    private static long letTimeElapse() {
+        long ts = System.currentTimeMillis();
+        while (System.currentTimeMillis() == ts) {
+            // busy wait
+        }
+        return System.currentTimeMillis();
+    }
 }