Examples with SegmentGCOptions org.apache.jackrabbit.oak.segment.compaction.SegmentGCOptions used on opensource projects

Example 11 with SegmentGCOptions

use of org.apache.jackrabbit.oak.segment.compaction.SegmentGCOptions in project jackrabbit-oak by apache.

the class CompactionAndCleanupIT method offlineCompactionBinR1.

/**
     * Create 2 binary nodes with same content and same reference. Verify
     * de-duplication capabilities of compaction
     */
@Test
public void offlineCompactionBinR1() throws Exception {
    SegmentGCOptions gcOptions = defaultGCOptions().setOffline();
    ScheduledExecutorService executor = newSingleThreadScheduledExecutor();
    FileStore fileStore = fileStoreBuilder(getFileStoreFolder()).withMaxFileSize(1).withGCOptions(gcOptions).withStatisticsProvider(new DefaultStatisticsProvider(executor)).build();
    SegmentNodeStore nodeStore = SegmentNodeStoreBuilders.builder(fileStore).build();
    try {
        NodeBuilder extra = nodeStore.getRoot().builder();
        NodeBuilder content = extra.child("content");
        int blobSize = 5 * 1024 * 1024;
        byte[] data = new byte[blobSize];
        new Random().nextBytes(data);
        Blob b = nodeStore.createBlob(new ByteArrayInputStream(data));
        NodeBuilder c1 = content.child("c1");
        c1.setProperty("blob1", b);
        NodeBuilder c2 = content.child("c2");
        c2.setProperty("blob2", b);
        nodeStore.merge(extra, EmptyHook.INSTANCE, CommitInfo.EMPTY);
        fileStore.flush();
        int cpNo = 4;
        Set<String> cps = new HashSet<String>();
        for (int i = 0; i < cpNo; i++) {
            cps.add(nodeStore.checkpoint(60000));
        }
        assertEquals(cpNo, cps.size());
        for (String cp : cps) {
            assertTrue(nodeStore.retrieve(cp) != null);
        }
        // 5Mb, de-duplication by the SegmentWriter
        long size1 = fileStore.getStats().getApproximateSize();
        fileStore.compact();
        fileStore.cleanup();
        long size2 = fileStore.getStats().getApproximateSize();
        assertSize("with compacted binaries", size2, 0, size1 * 11 / 10);
    } finally {
        fileStore.close();
    }
}

Example 12 with SegmentGCOptions

use of org.apache.jackrabbit.oak.segment.compaction.SegmentGCOptions in project jackrabbit-oak by apache.

the class CompactionAndCleanupIT method equalContentAfterOC.

@Test
public void equalContentAfterOC() throws Exception {
    SegmentGCOptions gcOptions = defaultGCOptions().setOffline();
    ScheduledExecutorService executor = newSingleThreadScheduledExecutor();
    try (FileStore fileStore = fileStoreBuilder(getFileStoreFolder()).withGCOptions(gcOptions).build()) {
        SegmentNodeStore nodeStore = SegmentNodeStoreBuilders.builder(fileStore).build();
        // Add initial content
        NodeBuilder rootBuilder = nodeStore.getRoot().builder();
        addNodes(rootBuilder, 8, "p");
        addProperties(rootBuilder, 3);
        nodeStore.merge(rootBuilder, EmptyHook.INSTANCE, CommitInfo.EMPTY);
        NodeState initialRoot = nodeStore.getRoot();
        assertTrue(fileStore.compact());
        NodeState compactedRoot = nodeStore.getRoot();
        assertTrue(initialRoot != compactedRoot);
        assertEquals(initialRoot, compactedRoot);
    }
}

Example 13 with SegmentGCOptions

use of org.apache.jackrabbit.oak.segment.compaction.SegmentGCOptions in project jackrabbit-oak by apache.

the class CompactionAndCleanupIT method offlineCompactionCps.

/**
     * Create a lot of data nodes (no binaries) and a few checkpoints, verify
     * that compacting checkpoints will not cause the size to explode
     */
@Test
public void offlineCompactionCps() throws Exception {
    SegmentGCOptions gcOptions = defaultGCOptions().setOffline();
    ScheduledExecutorService executor = newSingleThreadScheduledExecutor();
    FileStore fileStore = fileStoreBuilder(getFileStoreFolder()).withMaxFileSize(1).withGCOptions(gcOptions).withStatisticsProvider(new DefaultStatisticsProvider(executor)).build();
    SegmentNodeStore nodeStore = SegmentNodeStoreBuilders.builder(fileStore).build();
    try {
        // Create ~2MB of data
        NodeBuilder extra = nodeStore.getRoot().builder();
        NodeBuilder content = extra.child("content");
        for (int i = 0; i < 10000; i++) {
            NodeBuilder c = content.child("c" + i);
            for (int j = 0; j < 1000; j++) {
                c.setProperty("p" + i, "v" + i);
            }
        }
        nodeStore.merge(extra, EmptyHook.INSTANCE, CommitInfo.EMPTY);
        fileStore.flush();
        fileStore.compact();
        fileStore.cleanup();
        // Compacts to 548Kb
        long size0 = fileStore.getStats().getApproximateSize();
        int cpNo = 4;
        Set<String> cps = new HashSet<String>();
        for (int i = 0; i < cpNo; i++) {
            cps.add(nodeStore.checkpoint(60000));
        }
        assertEquals(cpNo, cps.size());
        for (String cp : cps) {
            assertTrue(nodeStore.retrieve(cp) != null);
        }
        long size1 = fileStore.getStats().getApproximateSize();
        assertTrue("the size should grow or stay the same", size1 >= size0);
    // TODO the following assertion doesn't say anything useful. The
    // conveyed message is "the repository can shrink, grow or stay the
    // same, as long as it remains in a 10% margin of the previous size
    // that I took out of thin air". It has to be fixed or removed.
    // fileStore.compact();
    // fileStore.cleanup();
    // long size2 = fileStore.getStats().getApproximateSize();
    // assertSize("with checkpoints compacted", size2, size1 * 9/10, size1 * 11 / 10);
    } finally {
        fileStore.close();
    }
}