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Posted to oak-commits@jackrabbit.apache.org by am...@apache.org on 2015/08/06 06:39:34 UTC

svn commit: r1694399 - in /jackrabbit/oak/branches/1.2: ./ oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/blob/ oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/ oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/

Author: amitj
Date: Thu Aug  6 04:39:33 2015
New Revision: 1694399

URL: http://svn.apache.org/r1694399
Log:
OAK-3174: [Blob GC] Make actual deletion of blobs synchronous

Merged revision 1694393 from trunk

Modified:
    jackrabbit/oak/branches/1.2/   (props changed)
    jackrabbit/oak/branches/1.2/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/blob/MarkSweepGarbageCollector.java
    jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MongoBlobGCTest.java
    jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/SegmentDataStoreBlobGCTest.java

Propchange: jackrabbit/oak/branches/1.2/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Thu Aug  6 04:39:33 2015
@@ -1,3 +1,3 @@
 /jackrabbit/oak/branches/1.0:1665962
-/jackrabbit/oak/trunk:1672350,1672468,1672537,1672603,1672642,1672644,1672834-1672835,1673351,1673410,1673414-1673415,1673436,1673644,1673662-1673664,1673669,1673695,1673713,1673738,1673787,1673791,1674046,1674065,1674075,1674107,1674228,1674780,1674880,1675054-1675055,1675319,1675332,1675354,1675357,1675382,1675555,1675566,1675593,1676198,1676237,1676407,1676458,1676539,1676670,1676693,1676703,1676725,1677579,1677581,1677609,1677611,1677774,1677788,1677797,1677804,1677806,1677939,1677991,1678023,1678095-1678096,1678124,1678171,1678173,1678211,1678323,1678758,1678938,1678954,1679144,1679165,1679191,1679232,1679235,1679503,1679958,1679961,1680170,1680172,1680182,1680222,1680232,1680236,1680461,1680633,1680643,1680747,1680805-1680806,1680903,1681282,1681767,1681918,1682042,1682218,1682235,1682437,1682494,1682555,1682855,1682904,1683059,1683089,1683213,1683249,1683259,1683278,1683323,1683687,1683700,1684174-1684175,1684186,1684376,1684442,1684561,1684570,1684601,1684618,1684820,1684868
 ,1685023,1685075,1685370,1685552,1685589-1685590,1685840,1685964,1685977,1685989,1685999,1686023,1686032,1686097,1686162,1686229,1686234,1686253,1686414,1686780,1686854,1686857,1686971,1687053-1687055,1687175,1687196,1687198,1687220,1687239-1687240,1687301,1687441,1687553,1688089-1688090,1688172,1688179,1688349,1688421,1688436,1688453,1688616,1688622,1688634,1688636,1688817,1689003-1689004,1689008,1689577,1689581,1689623,1689810,1689828,1689831,1689833,1689903,1690017,1690043,1690047,1690057,1690247,1690249,1690634-1690637,1690650,1690669,1690674,1690885,1690941,1691139,1691151,1691159,1691167,1691183,1691188,1691210,1691280,1691307,1691331-1691333,1691345,1691384-1691385,1691401,1691509,1692133-1692134,1692156,1692250,1692274,1692363,1692382,1692478,1692955,1693002,1693030,1693209,1693421,1693525-1693526,1694007
+/jackrabbit/oak/trunk:1672350,1672468,1672537,1672603,1672642,1672644,1672834-1672835,1673351,1673410,1673414-1673415,1673436,1673644,1673662-1673664,1673669,1673695,1673713,1673738,1673787,1673791,1674046,1674065,1674075,1674107,1674228,1674780,1674880,1675054-1675055,1675319,1675332,1675354,1675357,1675382,1675555,1675566,1675593,1676198,1676237,1676407,1676458,1676539,1676670,1676693,1676703,1676725,1677579,1677581,1677609,1677611,1677774,1677788,1677797,1677804,1677806,1677939,1677991,1678023,1678095-1678096,1678124,1678171,1678173,1678211,1678323,1678758,1678938,1678954,1679144,1679165,1679191,1679232,1679235,1679503,1679958,1679961,1680170,1680172,1680182,1680222,1680232,1680236,1680461,1680633,1680643,1680747,1680805-1680806,1680903,1681282,1681767,1681918,1682042,1682218,1682235,1682437,1682494,1682555,1682855,1682904,1683059,1683089,1683213,1683249,1683259,1683278,1683323,1683687,1683700,1684174-1684175,1684186,1684376,1684442,1684561,1684570,1684601,1684618,1684820,1684868
 ,1685023,1685075,1685370,1685552,1685589-1685590,1685840,1685964,1685977,1685989,1685999,1686023,1686032,1686097,1686162,1686229,1686234,1686253,1686414,1686780,1686854,1686857,1686971,1687053-1687055,1687175,1687196,1687198,1687220,1687239-1687240,1687301,1687441,1687553,1688089-1688090,1688172,1688179,1688349,1688421,1688436,1688453,1688616,1688622,1688634,1688636,1688817,1689003-1689004,1689008,1689577,1689581,1689623,1689810,1689828,1689831,1689833,1689903,1690017,1690043,1690047,1690057,1690247,1690249,1690634-1690637,1690650,1690669,1690674,1690885,1690941,1691139,1691151,1691159,1691167,1691183,1691188,1691210,1691280,1691307,1691331-1691333,1691345,1691384-1691385,1691401,1691509,1692133-1692134,1692156,1692250,1692274,1692363,1692382,1692478,1692955,1693002,1693030,1693209,1693421,1693525-1693526,1694007,1694393
 /jackrabbit/trunk:1345480

Modified: jackrabbit/oak/branches/1.2/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/blob/MarkSweepGarbageCollector.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.2/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/blob/MarkSweepGarbageCollector.java?rev=1694399&r1=1694398&r2=1694399&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.2/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/blob/MarkSweepGarbageCollector.java (original)
+++ jackrabbit/oak/branches/1.2/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/blob/MarkSweepGarbageCollector.java Thu Aug  6 04:39:33 2015
@@ -316,13 +316,13 @@ public class MarkSweepGarbageCollector i
 
             if (ids.size() > getBatchCount()) {
                 count += ids.size();
-                executor.execute(new Sweeper(ids, exceptionQueue, earliestRefAvailTime));
+                sweepInternal(ids, exceptionQueue, earliestRefAvailTime);
                 ids = Lists.newArrayList();
             }
         }
         if (!ids.isEmpty()) {
             count += ids.size();
-            executor.execute(new Sweeper(ids, exceptionQueue, earliestRefAvailTime));
+            sweepInternal(ids, exceptionQueue, earliestRefAvailTime);
         }
 
         count -= exceptionQueue.size();
@@ -367,41 +367,26 @@ public class MarkSweepGarbageCollector i
         ids.clear();
         writer.flush();
     }
-
+    
     /**
-     * Sweeper thread.
+     * Deletes a batch of blobs from blob store.
+     * 
+     * @param ids
+     * @param exceptionQueue
+     * @param maxModified
      */
-    class Sweeper implements Runnable {
-
-        /** The exception queue. */
-        private final ConcurrentLinkedQueue<String> exceptionQueue;
-
-        /** The ids to sweep. */
-        private final List<String> ids;
-
-        private final long maxModified;
-
-        public Sweeper(List<String> ids, ConcurrentLinkedQueue<String> exceptionQueue,
-                long maxModified) {
-            this.exceptionQueue = exceptionQueue;
-            this.ids = ids;
-            this.maxModified = maxModified;
-        }
-
-        @Override
-        public void run() {
-            try {
-                LOG.debug("Blob ids to be deleted {}", ids);
-                boolean deleted = blobStore.deleteChunks(ids, getLastMaxModifiedTime(maxModified));
-                if (!deleted) {
-                    // Only log and do not add to exception queue since some blobs may not match the
-                    // lastMaxModifiedTime criteria.
-                    LOG.debug("Some blobs were not deleted from the batch : [{}]", ids);
-                }
-            } catch (Exception e) {
-                LOG.warn("Error occurred while deleting blob with ids [{}]", ids, e);
-                exceptionQueue.addAll(ids);
+    private void sweepInternal(List<String> ids, ConcurrentLinkedQueue<String> exceptionQueue, long maxModified) {
+        try {
+            LOG.debug("Blob ids to be deleted {}", ids);
+            boolean deleted = blobStore.deleteChunks(ids, getLastMaxModifiedTime(maxModified));
+            if (!deleted) {
+                // Only log and do not add to exception queue since some blobs may not match the
+                // lastMaxModifiedTime criteria.
+                LOG.debug("Some blobs were not deleted from the batch : [{}]", ids);
             }
+        } catch (Exception e) {
+            LOG.warn("Error occurred while deleting blob with ids [{}]", ids, e);
+            exceptionQueue.addAll(ids);
         }
     }
 

Modified: jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MongoBlobGCTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MongoBlobGCTest.java?rev=1694399&r1=1694398&r2=1694399&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MongoBlobGCTest.java (original)
+++ jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/document/MongoBlobGCTest.java Thu Aug  6 04:39:33 2015
@@ -17,6 +17,7 @@
 package org.apache.jackrabbit.oak.plugins.document;
 
 import static org.apache.jackrabbit.oak.plugins.blob.datastore.SharedDataStoreUtils.SharedStoreRecordType.REPOSITORY;
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
 import java.io.ByteArrayInputStream;
@@ -26,6 +27,8 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Random;
 import java.util.Set;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 
 import com.google.common.collect.Lists;
@@ -158,16 +161,16 @@ public class MongoBlobGCTest extends Abs
                 new ByteArrayInputStream(new byte[0]),
                 REPOSITORY.getNameFromId(repoId));
         }
+        ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newFixedThreadPool(10);
         MarkSweepGarbageCollector gc = new MarkSweepGarbageCollector(
                 new DocumentBlobReferenceRetriever(store),
-                (GarbageCollectableBlobStore) store.getBlobStore(),
-                MoreExecutors.sameThreadExecutor(),
-                "./target", 5, 0, repoId);
+                (GarbageCollectableBlobStore) store.getBlobStore(), executor, "./target", 5, 0, repoId);
         Thread.sleep(4000);
         gc.collectGarbage(false);
-
+        
+        assertEquals(0, executor.getTaskCount());
         Set<String> existingAfterGC = iterate();
-    boolean empty = Sets.symmetricDifference(remaining, existingAfterGC).isEmpty();
+        boolean empty = Sets.symmetricDifference(remaining, existingAfterGC).isEmpty();
         assertTrue(empty);
     }
 

Modified: jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/SegmentDataStoreBlobGCTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/SegmentDataStoreBlobGCTest.java?rev=1694399&r1=1694398&r2=1694399&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/SegmentDataStoreBlobGCTest.java (original)
+++ jackrabbit/oak/branches/1.2/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/SegmentDataStoreBlobGCTest.java Thu Aug  6 04:39:33 2015
@@ -20,6 +20,7 @@ package org.apache.jackrabbit.oak.plugin
 
 import static org.apache.commons.io.FileUtils.byteCountToDisplaySize;
 import static org.apache.jackrabbit.oak.plugins.blob.datastore.SharedDataStoreUtils.SharedStoreRecordType.REPOSITORY;
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
 import java.io.ByteArrayInputStream;
@@ -33,6 +34,8 @@ import java.util.List;
 import java.util.Random;
 import java.util.Set;
 import java.util.concurrent.Callable;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 
 import com.google.common.collect.Lists;
@@ -185,14 +188,15 @@ public class SegmentDataStoreBlobGCTest
                 new ByteArrayInputStream(new byte[0]),
                 REPOSITORY.getNameFromId(repoId));
         }
-
+        
+        ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newFixedThreadPool(10);
         MarkSweepGarbageCollector gc = new MarkSweepGarbageCollector(
                 new SegmentBlobReferenceRetriever(store.getTracker()),
-                    (GarbageCollectableBlobStore) store.getBlobStore(),
-                    MoreExecutors.sameThreadExecutor(),
+                    (GarbageCollectableBlobStore) store.getBlobStore(), executor,
                     "./target", 2048, 0, repoId);
         gc.collectGarbage(false);
 
+        assertEquals(0, executor.getTaskCount());
         Set<String> existingAfterGC = iterate();
         log.info("{} blobs that should have remained after gc : {}", remaining.size(), remaining);
         log.info("{} blobs existing after gc : {}", existingAfterGC.size(), existingAfterGC);