Package org.apache.cassandra.io.sstable.metadata

Examples of org.apache.cassandra.io.sstable.metadata.StatsMetadata

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        createTable("CREATE TABLE %s (a int, PRIMARY KEY (a))");
        ColumnFamilyStore cfs = Keyspace.open(keyspace()).getColumnFamilyStore(currentTable());
        execute("DELETE FROM %s USING TIMESTAMP 9999 WHERE a=1");
        cfs.forceBlockingFlush();
        assertEquals(1, cfs.getSSTables().size());
        StatsMetadata metadata = cfs.getSSTables().iterator().next().getSSTableMetadata();
        assertEquals(9999, metadata.minTimestamp);
        assertEquals(9999, metadata.maxTimestamp);
        assertEquals(System.currentTimeMillis()/1000, metadata.maxLocalDeletionTime, 5);
        cfs.forceMajorCompaction();
        StatsMetadata metadata2 = cfs.getSSTables().iterator().next().getSSTableMetadata();
        assertEquals(metadata.maxLocalDeletionTime, metadata2.maxLocalDeletionTime);
        assertEquals(metadata.minTimestamp, metadata2.minTimestamp);
        assertEquals(metadata.maxTimestamp, metadata2.maxTimestamp);
    }
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            {
                if (sstable.getValue().contains(Component.STATS))
                {
                    foundSSTable = true;
                    Descriptor descriptor = sstable.getKey();
                    StatsMetadata metadata = (StatsMetadata) descriptor.getMetadataSerializer().deserialize(descriptor, MetadataType.STATS);
                    if (metadata.sstableLevel > 0)
                    {
                        out.println("Changing level from " + metadata.sstableLevel + " to 0 on " + descriptor.filenameFor(Component.DATA));
                        descriptor.getMetadataSerializer().mutateLevel(descriptor, 0);
                    }
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        last = lastWrittenKey = getMinimalKey(last);
    }

    public SSTableReader openEarly(long maxDataAge)
    {
        StatsMetadata sstableMetadata = (StatsMetadata) metadataCollector.finalizeMetadata(partitioner.getClass().getCanonicalName(),
                                                  metadata.getBloomFilterFpChance(),
                                                  repairedAt).get(MetadataType.STATS);

        // find the max (exclusive) readable key
        DecoratedKey exclusiveUpperBoundOfReadableIndex = iwriter.getMaxReadableKey(0);
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    public SSTableReader closeAndOpenReader(long maxDataAge, long repairedAt)
    {
        Pair<Descriptor, StatsMetadata> p = close(repairedAt);
        Descriptor newdesc = p.left;
        StatsMetadata sstableMetadata = p.right;

        // finalize in-memory state for the reader
        SegmentedFile ifile = iwriter.builder.complete(newdesc.filenameFor(Component.PRIMARY_INDEX));
        SegmentedFile dfile = dbuilder.complete(newdesc.filenameFor(Component.DATA));
        SSTableReader sstable = SSTableReader.internalOpen(newdesc,
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            assertEquals(3,r.cf.getColumn(Util.cellname("a")).timestamp());
        }

        for (SSTableReader sstable : cfs.getSSTables())
        {
            StatsMetadata stats = sstable.getSSTableMetadata();
            assertEquals(ByteBufferUtil.bytes("0"), stats.minColumnNames.get(0));
            assertEquals(ByteBufferUtil.bytes("b"), stats.maxColumnNames.get(0));
        }

        assertEquals(keys, k);
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        last = lastWrittenKey = getMinimalKey(last);
    }

    public SSTableReader openEarly(long maxDataAge)
    {
        StatsMetadata sstableMetadata = (StatsMetadata) sstableMetadataCollector.finalizeMetadata(partitioner.getClass().getCanonicalName(),
                                                  metadata.getBloomFilterFpChance(),
                                                  repairedAt).get(MetadataType.STATS);

        // find the max (exclusive) readable key
        DecoratedKey exclusiveUpperBoundOfReadableIndex = iwriter.getMaxReadableKey(0);
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        {
            if (sstable.getValue().contains(Component.STATS))
            {
                foundSSTable = true;
                Descriptor descriptor = sstable.getKey();
                StatsMetadata metadata = (StatsMetadata) descriptor.getMetadataSerializer().deserialize(descriptor, MetadataType.STATS);
                out.println("Changing level from " + metadata.sstableLevel + " to 0 on " + descriptor.filenameFor(Component.DATA));
                descriptor.getMetadataSerializer().mutateLevel(descriptor, 0);
            }
        }
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    public SSTableReader closeAndOpenReader(long maxDataAge, long repairedAt)
    {
        Pair<Descriptor, StatsMetadata> p = close(repairedAt);
        Descriptor newdesc = p.left;
        StatsMetadata sstableMetadata = p.right;

        // finalize in-memory state for the reader
        SegmentedFile ifile = iwriter.builder.complete(newdesc.filenameFor(Component.PRIMARY_INDEX));
        SegmentedFile dfile = dbuilder.complete(newdesc.filenameFor(Component.DATA));
        SSTableReader sstable = SSTableReader.internalOpen(newdesc,
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        assert components.contains(Component.PRIMARY_INDEX) : "Primary index component is missing for sstable " + descriptor;

        Map<MetadataType, MetadataComponent> sstableMetadata = descriptor.getMetadataSerializer().deserialize(descriptor,
                                                                                                               EnumSet.of(MetadataType.VALIDATION, MetadataType.STATS));
        ValidationMetadata validationMetadata = (ValidationMetadata) sstableMetadata.get(MetadataType.VALIDATION);
        StatsMetadata statsMetadata = (StatsMetadata) sstableMetadata.get(MetadataType.STATS);

        // Check if sstable is created using same partitioner.
        // Partitioner can be null, which indicates older version of sstable or no stats available.
        // In that case, we skip the check.
        String partitionerName = partitioner.getClass().getCanonicalName();
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        assert components.contains(Component.PRIMARY_INDEX) : "Primary index component is missing for sstable " + descriptor;

        Map<MetadataType, MetadataComponent> sstableMetadata = descriptor.getMetadataSerializer().deserialize(descriptor,
                                                                                                               EnumSet.of(MetadataType.VALIDATION, MetadataType.STATS));
        ValidationMetadata validationMetadata = (ValidationMetadata) sstableMetadata.get(MetadataType.VALIDATION);
        StatsMetadata statsMetadata = (StatsMetadata) sstableMetadata.get(MetadataType.STATS);

        // Check if sstable is created using same partitioner.
        // Partitioner can be null, which indicates older version of sstable or no stats available.
        // In that case, we skip the check.
        String partitionerName = partitioner.getClass().getCanonicalName();
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Related Classes of org.apache.cassandra.io.sstable.metadata.StatsMetadata

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  • org.apache.cassandra.db.compaction.CompactionsTest
  • org.apache.cassandra.io.sstable.format.big.BigTableWriter
  • org.apache.cassandra.io.sstable.SSTableReader
  • org.apache.cassandra.io.sstable.SSTableWriter
  • org.apache.cassandra.tools.SSTableLevelResetter
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  • org.apache.commons.lang3.builder.EqualsBuilder
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