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Posted to oak-commits@jackrabbit.apache.org by mr...@apache.org on 2015/07/20 15:29:40 UTC
svn commit: r1691938 - in /jackrabbit/oak/branches/1.0: ./
oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/
oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/mongo/
oak-core/src/test/java/org/apache/jackrabbit/oak/plug...
Author: mreutegg
Date: Mon Jul 20 13:29:40 2015
New Revision: 1691938
URL: http://svn.apache.org/r1691938
Log:
OAK-3103: Stale document in MongoDocumentStore cache
Merged revisions 1691139,1691159,1691188 from trunk
Added:
jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/mongo/CacheConsistencyIT.java
- copied, changed from r1691139, jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/mongo/CacheConsistencyIT.java
Modified:
jackrabbit/oak/branches/1.0/ (props changed)
jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/UpdateOp.java
jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/mongo/MongoDocumentStore.java
Propchange: jackrabbit/oak/branches/1.0/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Mon Jul 20 13:29:40 2015
@@ -1,2 +1,2 @@
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/jackrabbit/trunk:1345480
Modified: jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/UpdateOp.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/UpdateOp.java?rev=1691938&r1=1691937&r2=1691938&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/UpdateOp.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/UpdateOp.java Mon Jul 20 13:29:40 2015
@@ -49,7 +49,7 @@ public final class UpdateOp {
* @param id the primary key
* @param isNew whether this is a new document
*/
- UpdateOp(String id, boolean isNew) {
+ public UpdateOp(String id, boolean isNew) {
this(id, isNew, false, new HashMap<Key, Operation>(), null);
}
@@ -176,7 +176,7 @@ public final class UpdateOp {
* @param property the property name
* @param value the value
*/
- void set(String property, Object value) {
+ public void set(String property, Object value) {
Operation op = new Operation(Operation.Type.SET, value);
changes.put(new Key(property, null), op);
}
Modified: jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/mongo/MongoDocumentStore.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/mongo/MongoDocumentStore.java?rev=1691938&r1=1691937&r2=1691938&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/mongo/MongoDocumentStore.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/mongo/MongoDocumentStore.java Mon Jul 20 13:29:40 2015
@@ -690,16 +690,11 @@ public class MongoDocumentStore implemen
QueryBuilder query = createQueryForUpdate(updateOp.getId(),
updateOp.getConditions());
query.and(Document.MOD_COUNT).is(modCount);
- DBObject fields = new BasicDBObject();
- // return _id only
- fields.put("_id", 1);
-
- DBObject oldNode = dbCollection.findAndModify(query.get(), fields,
- null /*sort*/, false /*remove*/, update, false /*returnNew*/,
- false /*upsert*/);
- if (oldNode != null) {
+
+ WriteResult result = dbCollection.update(query.get(), update);
+ if (result.getN() > 0) {
// success, update cached document
- applyToCache(collection, cachedDoc, updateOp);
+ putToCache(collection, cachedDoc, updateOp);
// return previously cached document
return cachedDoc;
}
@@ -713,9 +708,18 @@ public class MongoDocumentStore implemen
return null;
}
T oldDoc = convertFromDBObject(collection, oldNode);
- applyToCache(collection, oldDoc, updateOp);
if (oldDoc != null) {
+ putToCache(collection, oldDoc, updateOp);
oldDoc.seal();
+ } else if (upsert) {
+ if (collection == Collection.NODES) {
+ NodeDocument doc = (NodeDocument) collection.newDocument(this);
+ UpdateUtils.applyChanges(doc, updateOp, comparator);
+ addToCache(doc);
+ }
+ } else {
+ // updateOp without conditions and not an upsert
+ // this means the document does not exist
}
return oldDoc;
} catch (Exception e) {
@@ -849,8 +853,7 @@ public class MongoDocumentStore implemen
// make sure concurrently loaded document is invalidated
nodesCache.invalidate(new StringValue(entry.getKey()));
} else {
- applyToCache(Collection.NODES, entry.getValue(),
- updateOp.shallowCopy(entry.getKey()));
+ updateCache(Collection.NODES, entry.getValue(), updateOp.shallowCopy(entry.getKey()));
}
} finally {
lock.unlock();
@@ -1023,6 +1026,10 @@ public class MongoDocumentStore implemen
return nodesCache.getIfPresent(new StringValue(id));
}
+ protected Cache<CacheValue, NodeDocument> getNodeDocumentCache() {
+ return nodesCache;
+ }
+
private static void log(String message, Object... args) {
if (LOG.isDebugEnabled()) {
String argList = Arrays.toString(args);
@@ -1050,43 +1057,34 @@ public class MongoDocumentStore implemen
*
* @param <T> the document type.
* @param collection the document collection.
- * @param oldDoc the old document or <code>null</code> if the update is for
- * a new document (insert).
+ * @param oldDoc the old document.
* @param updateOp the update operation.
*/
- private <T extends Document> void applyToCache(@Nonnull Collection<T> collection,
- @Nullable T oldDoc,
- @Nonnull UpdateOp updateOp) {
+ private <T extends Document> void updateCache(@Nonnull Collection<T> collection,
+ @Nonnull T oldDoc,
+ @Nonnull UpdateOp updateOp) {
// cache the new document
if (collection == Collection.NODES) {
+ checkNotNull(oldDoc);
+ checkNotNull(updateOp);
+ // we can only update the cache based on the oldDoc if we
+ // still have the oldDoc in the cache, otherwise we may
+ // update the cache with an outdated document
CacheValue key = new StringValue(updateOp.getId());
- NodeDocument newDoc = (NodeDocument) collection.newDocument(this);
- if (oldDoc != null) {
- // we can only update the cache based on the oldDoc if we
- // still have the oldDoc in the cache, otherwise we may
- // update the cache with an outdated document
- NodeDocument cached = nodesCache.getIfPresent(key);
- if (cached == null) {
- // cannot use oldDoc to update cache
- return;
- }
- oldDoc.deepCopy(newDoc);
- }
- UpdateUtils.applyChanges(newDoc, updateOp, comparator);
- newDoc.seal();
-
- NodeDocument cached = addToCache(newDoc);
- if (cached == newDoc) {
- // successful
- return;
- }
- if (oldDoc == null) {
- // this is an insert and some other thread was quicker
- // loading it into the cache -> return now
+ NodeDocument cached = nodesCache.getIfPresent(key);
+ if (cached == null) {
+ // cannot use oldDoc to update cache
return;
}
- // this is an update (oldDoc != null)
+
+ // check if the currently cached document matches oldDoc
if (Objects.equal(cached.getModCount(), oldDoc.getModCount())) {
+ NodeDocument newDoc = (NodeDocument) collection.newDocument(this);
+ oldDoc.deepCopy(newDoc);
+
+ UpdateUtils.applyChanges(newDoc, updateOp, comparator);
+ newDoc.seal();
+
nodesCache.put(key, newDoc);
} else {
// the cache entry was modified by some other thread in
@@ -1142,6 +1140,30 @@ public class MongoDocumentStore implemen
}
}
+ /**
+ * Unconditionally puts a document into the cache if {@code collection} is
+ * {@link Collection#NODES}. The document put into the cache is
+ * {@code oldDoc} with the {@code updateOp} applied. This method does not
+ * acquire a lock from {@link #locks}! The caller must ensure a lock is held
+ * for the given document.
+ *
+ * @param collection the collection where oldDoc belongs to.
+ * @param oldDoc how the document looked before the update.
+ * @param updateOp the update just applied to the document.
+ */
+ private <T extends Document> void putToCache(@Nonnull Collection<T> collection,
+ @Nonnull T oldDoc,
+ @Nonnull UpdateOp updateOp) {
+ if (collection == Collection.NODES) {
+ CacheValue key = new StringValue(oldDoc.getId());
+ NodeDocument newDoc = (NodeDocument) collection.newDocument(this);
+ oldDoc.deepCopy(newDoc);
+ UpdateUtils.applyChanges(newDoc, updateOp, comparator);
+ newDoc.seal();
+ nodesCache.put(key, newDoc);
+ }
+ }
+
@Nonnull
private static QueryBuilder createQueryForUpdate(String key,
Map<Key, Condition> conditions) {
Copied: jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/mongo/CacheConsistencyIT.java (from r1691139, jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/mongo/CacheConsistencyIT.java)
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/mongo/CacheConsistencyIT.java?p2=jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/mongo/CacheConsistencyIT.java&p1=jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/mongo/CacheConsistencyIT.java&r1=1691139&r2=1691938&rev=1691938&view=diff
==============================================================================
--- jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/mongo/CacheConsistencyIT.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/mongo/CacheConsistencyIT.java Mon Jul 20 13:29:40 2015
@@ -33,7 +33,6 @@ import org.apache.jackrabbit.oak.plugins
import org.apache.jackrabbit.oak.plugins.document.util.StringValue;
import org.apache.jackrabbit.oak.plugins.document.util.Utils;
import org.junit.Before;
-import org.junit.Ignore;
import org.junit.Test;
import static org.apache.jackrabbit.oak.plugins.document.Collection.NODES;
@@ -43,7 +42,6 @@ import static org.junit.Assert.assertTru
/**
* Test for OAK-3103
*/
-@Ignore
public class CacheConsistencyIT extends AbstractMongoConnectionTest {
private MongoDocumentStore store;