Package org.apache.cassandra.io.sstable.format

Examples of org.apache.cassandra.io.sstable.format.SSTableReader

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        cf.delete(new DeletionInfo(cellname(2), cellname(3), cf.getComparator(), 1, (int) (System.currentTimeMillis() / 1000)));
        cf.delete(new DeletionInfo(cellname(5), cellname(7), cf.getComparator(), 1, (int) (System.currentTimeMillis() / 1000)));
        rm.applyUnsafe();
        cfs.forceBlockingFlush();

        SSTableReader sstable = cfs.getSSTables().iterator().next();
        cfs.clearUnsafe();
        transferSSTables(sstable);

        // confirm that a single SSTable was transferred and registered
        assertEquals(1, cfs.getSSTables().size());
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            }
        }, true);

        // filter pre-cleaned entries locally, and ensure that the end result is equal
        cleanedEntries.keySet().retainAll(keys);
        SSTableReader cleaned = SSTableUtils.prepare()
            .ks(keyspace.getName())
            .cf(cfs.name)
            .generation(0)
            .write(cleanedEntries);
        SSTableReader streamed = cfs.getSSTables().iterator().next();
        SSTableUtils.assertContentEquals(cleaned, streamed);

        // Retransfer the file, making sure it is now idempotent (see CASSANDRA-3481)
        cfs.clearUnsafe();
        transferSSTables(streamed);
        SSTableReader restreamed = cfs.getSSTables().iterator().next();
        SSTableUtils.assertContentEquals(streamed, restreamed);
    }
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        // write temporary SSTables, but don't register them
        Set<String> content = new HashSet<>();
        content.add("test");
        content.add("test2");
        content.add("test3");
        SSTableReader sstable = new SSTableUtils(KEYSPACE1, CF_STANDARD).prepare().write(content);
        String keyspaceName = sstable.getKeyspaceName();
        String cfname = sstable.getColumnFamilyName();

        content = new HashSet<>();
        content.add("transfer1");
        content.add("transfer2");
        content.add("transfer3");
        SSTableReader sstable2 = SSTableUtils.prepare().write(content);

        // transfer the first and last key
        IPartitioner p = StorageService.getPartitioner();
        List<Range<Token>> ranges = new ArrayList<>();
        ranges.add(new Range<>(p.getMinimumToken(), p.getToken(ByteBufferUtil.bytes("test"))));
        ranges.add(new Range<>(p.getToken(ByteBufferUtil.bytes("transfer2")), p.getMinimumToken()));
        // Acquiring references, transferSSTables needs it
        sstable.acquireReference();
        sstable2.acquireReference();
        new StreamPlan("StreamingTransferTest").transferFiles(LOCAL, makeStreamingDetails(ranges, Arrays.asList(sstable, sstable2))).execute().get();

        // confirm that the sstables were transferred and registered and that 2 keys arrived
        ColumnFamilyStore cfstore = Keyspace.open(keyspaceName).getColumnFamilyStore(cfname);
        List<Row> rows = Util.getRangeSlice(cfstore);
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        // write a lot more data so the data is spread in more than 1 chunk.
        for (int i = 1; i <= 6000; i++)
            mutator.mutate("key" + i, "col" + i, System.currentTimeMillis());
        cfs.forceBlockingFlush();
        Util.compactAll(cfs, Integer.MAX_VALUE).get();
        SSTableReader sstable = cfs.getSSTables().iterator().next();
        cfs.clearUnsafe();

        IPartitioner p = StorageService.getPartitioner();
        List<Range<Token>> ranges = new ArrayList<>();
        ranges.add(new Range<>(p.getToken(ByteBufferUtil.bytes("key1")), p.getToken(ByteBufferUtil.bytes("key1000"))));
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        ranges.add(new Range<Token>(t(6), StorageService.getPartitioner().getMinimumToken()));
        // empty range (should be ignored)
        ranges.add(new Range<Token>(t(9), t(91)));

        // confirm that positions increase continuously
        SSTableReader sstable = store.getSSTables().iterator().next();
        long previous = -1;
        for (Pair<Long,Long> section : sstable.getPositionsForRanges(ranges))
        {
            assert previous <= section.left : previous + " ! < " + section.left;
            assert section.left < section.right : section.left + " ! < " + section.right;
            previous = section.right;
        }
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        }
        store.forceBlockingFlush();
        CompactionManager.instance.performMaximal(store);

        // check that all our keys are found correctly
        SSTableReader sstable = store.getSSTables().iterator().next();
        for (int j = 0; j < 100; j += 2)
        {
            DecoratedKey dk = Util.dk(String.valueOf(j));
            FileDataInput file = sstable.getFileDataInput(sstable.getPosition(dk, SSTableReader.Operator.EQ).position);
            DecoratedKey keyInDisk = sstable.partitioner.decorateKey(ByteBufferUtil.readWithShortLength(file));
            assert keyInDisk.equals(dk) : String.format("%s != %s in %s", keyInDisk, dk, file.getPath());
        }

        // check no false positives
        for (int j = 1; j < 110; j += 2)
        {
            DecoratedKey dk = Util.dk(String.valueOf(j));
            assert sstable.getPosition(dk, SSTableReader.Operator.EQ) == null;
        }
    }
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            rm.add("Standard1", cellname("0"), ByteBufferUtil.EMPTY_BYTE_BUFFER, j);
            rm.apply();
        }
        store.forceBlockingFlush();

        SSTableReader sstable = store.getSSTables().iterator().next();
        assertEquals(0, sstable.readMeter.count());

        DecoratedKey key = sstable.partitioner.decorateKey(ByteBufferUtil.bytes("4"));
        store.getColumnFamily(key, Composites.EMPTY, Composites.EMPTY, false, 100, 100);
        assertEquals(1, sstable.readMeter.count());
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            rm.applyUnsafe();
        }
        store.forceBlockingFlush();
        CompactionManager.instance.performMaximal(store);

        SSTableReader sstable = store.getSSTables().iterator().next();
        long p2 = sstable.getPosition(k(2), SSTableReader.Operator.EQ).position;
        long p3 = sstable.getPosition(k(3), SSTableReader.Operator.EQ).position;
        long p6 = sstable.getPosition(k(6), SSTableReader.Operator.EQ).position;
        long p7 = sstable.getPosition(k(7), SSTableReader.Operator.EQ).position;

        Pair<Long, Long> p = sstable.getPositionsForRanges(makeRanges(t(2), t(6))).get(0);

        // range are start exclusive so we should start at 3
        assert p.left == p3;

        // to capture 6 we have to stop at the start of 7
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                   ByteBufferUtil.EMPTY_BYTE_BUFFER, timestamp);
            rm.applyUnsafe();
        }
        store.forceBlockingFlush();

        SSTableReader sstable = store.getSSTables().iterator().next();
        Descriptor desc = sstable.descriptor;

        // test to see if sstable can be opened as expected
        SSTableReader target = SSTableReader.open(desc);
        Assert.assertEquals(target.getIndexSummarySize(), 1);
        Assert.assertArrayEquals(ByteBufferUtil.getArray(firstKey.getKey()), target.getIndexSummaryKey(0));
        assert target.first.equals(firstKey);
        assert target.last.equals(lastKey);
    }
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        rm.applyUnsafe();
        store.forceBlockingFlush();

        ColumnFamilyStore indexCfs = store.indexManager.getIndexForColumn(ByteBufferUtil.bytes("birthdate")).getIndexCfs();
        assert indexCfs.partitioner instanceof LocalPartitioner;
        SSTableReader sstable = indexCfs.getSSTables().iterator().next();
        assert sstable.first.getToken() instanceof LocalToken;

        SegmentedFile.Builder ibuilder = SegmentedFile.getBuilder(DatabaseDescriptor.getIndexAccessMode());
        SegmentedFile.Builder dbuilder = sstable.compression
                                          ? SegmentedFile.getCompressedBuilder()
                                          : SegmentedFile.getBuilder(DatabaseDescriptor.getDiskAccessMode());
        sstable.saveSummary(ibuilder, dbuilder);

        SSTableReader reopened = SSTableReader.open(sstable.descriptor);
        assert reopened.first.getToken() instanceof LocalToken;
    }
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Related Classes of org.apache.cassandra.io.sstable.format.SSTableReader

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  • org.apache.cassandra.cache.CachingOptions
  • org.apache.cassandra.cache.KeyCacheKey
  • org.apache.cassandra.db.ColumnFamilyStore
  • org.apache.cassandra.db.ColumnFamilyStoreTest
  • org.apache.cassandra.db.compaction.AntiCompactionTest
  • org.apache.cassandra.db.compaction.CompactionController
  • org.apache.cassandra.db.compaction.CompactionManager
  • org.apache.cassandra.db.compaction.CompactionsTest
  • org.apache.cassandra.db.compaction.LeveledCompactionStrategy
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