Examples with ICachedPage org.apache.hyracks.storage.common.buffercache.ICachedPage used on opensource projects

Example 36 with ICachedPage

use of org.apache.hyracks.storage.common.buffercache.ICachedPage in project asterixdb by apache.

the class BTree method insertInterior.

private void insertInterior(ICachedPage node, int pageId, ITupleReference tuple, BTreeOpContext ctx) throws Exception {
    ctx.getInteriorFrame().setPage(node);
    int targetTupleIndex = ctx.getInteriorFrame().findInsertTupleIndex(tuple);
    FrameOpSpaceStatus spaceStatus = ctx.getInteriorFrame().hasSpaceInsert(tuple);
    switch(spaceStatus) {
        case INSUFFICIENT_SPACE:
            {
                int rightPageId = freePageManager.takePage(ctx.getMetaFrame());
                ICachedPage rightNode = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, rightPageId), true);
                rightNode.acquireWriteLatch();
                try {
                    IBTreeFrame rightFrame = ctx.createInteriorFrame();
                    rightFrame.setPage(rightNode);
                    rightFrame.initBuffer(ctx.getInteriorFrame().getLevel());
                    rightFrame.setMultiComparator(ctx.getCmp());
                    // instead of creating a new split key, use the existing
                    // splitKey
                    ctx.getInteriorFrame().split(rightFrame, ctx.getSplitKey().getTuple(), ctx.getSplitKey(), ctx, bufferCache);
                    ctx.getSmPages().add(pageId);
                    ctx.getSmPages().add(rightPageId);
                    ctx.getInteriorFrame().setSmFlag(true);
                    rightFrame.setSmFlag(true);
                    rightFrame.setPageLsn(rightFrame.getPageLsn() + 1);
                    ctx.getInteriorFrame().setPageLsn(ctx.getInteriorFrame().getPageLsn() + 1);
                    ctx.getSplitKey().setPages(pageId, rightPageId);
                } finally {
                    rightNode.releaseWriteLatch(true);
                    bufferCache.unpin(rightNode);
                }
                break;
            }
        case SUFFICIENT_CONTIGUOUS_SPACE:
            {
                ctx.getInteriorFrame().insert(tuple, targetTupleIndex);
                ctx.getSplitKey().reset();
                break;
            }
        case SUFFICIENT_SPACE:
            {
                boolean slotsChanged = ctx.getInteriorFrame().compact();
                if (slotsChanged) {
                    targetTupleIndex = ctx.getInteriorFrame().findInsertTupleIndex(tuple);
                }
                ctx.getInteriorFrame().insert(tuple, targetTupleIndex);
                ctx.getSplitKey().reset();
                break;
            }
        case TOO_LARGE:
            {
                int tupleSize = ctx.getInteriorFrame().getBytesRequiredToWriteTuple(tuple);
                throw HyracksDataException.create(ErrorCode.RECORD_IS_TOO_LARGE, tupleSize, maxTupleSize);
            }
        default:
            {
                throw new IllegalStateException("NYI: " + spaceStatus);
            }
    }
}

Example 37 with ICachedPage

use of org.apache.hyracks.storage.common.buffercache.ICachedPage in project asterixdb by apache.

the class BTree method diskOrderScan.

private void diskOrderScan(ITreeIndexCursor icursor, BTreeOpContext ctx) throws HyracksDataException {
    TreeIndexDiskOrderScanCursor cursor = (TreeIndexDiskOrderScanCursor) icursor;
    ctx.reset();
    RangePredicate diskOrderScanPred = new RangePredicate(null, null, true, true, ctx.getCmp(), ctx.getCmp());
    int maxPageId = freePageManager.getMaxPageId(ctx.getMetaFrame());
    int currentPageId = bulkloadLeafStart;
    ICachedPage page = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, currentPageId), false);
    page.acquireReadLatch();
    try {
        cursor.setBufferCache(bufferCache);
        cursor.setFileId(fileId);
        cursor.setCurrentPageId(currentPageId);
        cursor.setMaxPageId(maxPageId);
        ctx.getCursorInitialState().setPage(page);
        ctx.getCursorInitialState().setSearchOperationCallback(ctx.getSearchCallback());
        ctx.getCursorInitialState().setOriginialKeyComparator(ctx.getCmp());
        cursor.open(ctx.getCursorInitialState(), diskOrderScanPred);
    } catch (Exception e) {
        page.releaseReadLatch();
        bufferCache.unpin(page);
        throw HyracksDataException.create(e);
    }
}

Example 38 with ICachedPage

use of org.apache.hyracks.storage.common.buffercache.ICachedPage in project asterixdb by apache.

the class AppendOnlyLinkedMetadataPageManager method getRootPageId.

@Override
public int getRootPageId() throws HyracksDataException {
    ICachedPage metaNode;
    if (confiscatedPage == null) {
        metaNode = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, getMetadataPageId()), false);
    } else {
        metaNode = confiscatedPage;
    }
    ITreeIndexMetadataFrame metaFrame = frameFactory.createFrame();
    metaNode.acquireReadLatch();
    try {
        metaFrame.setPage(metaNode);
        return metaFrame.getRootPageId();
    } finally {
        metaNode.releaseReadLatch();
        if (confiscatedPage == null) {
            bufferCache.unpin(metaNode);
        }
    }
}

Example 39 with ICachedPage

use of org.apache.hyracks.storage.common.buffercache.ICachedPage in project asterixdb by apache.

the class TreeTupleSorter method compare.

private int compare(int[] tPointers, int tp1, int tp2i, int tp2j) throws HyracksDataException {
    int i1 = tPointers[tp1 * 2];
    int j1 = tPointers[tp1 * 2 + 1];
    int i2 = tp2i;
    int j2 = tp2j;
    ICachedPage node1 = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, i1), false);
    leafFrame1.setPage(node1);
    ICachedPage node2 = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, i2), false);
    leafFrame2.setPage(node2);
    try {
        frameTuple1.resetByTupleOffset(leafFrame1.getBuffer().array(), j1);
        frameTuple2.resetByTupleOffset(leafFrame2.getBuffer().array(), j2);
        return cmp.selectiveFieldCompare(frameTuple1, frameTuple2, comparatorFields);
    } finally {
        bufferCache.unpin(node1);
        bufferCache.unpin(node2);
    }
}

Example 40 with ICachedPage

use of org.apache.hyracks.storage.common.buffercache.ICachedPage in project asterixdb by apache.

the class RTree method diskOrderScan.

private void diskOrderScan(ITreeIndexCursor icursor, RTreeOpContext ctx) throws HyracksDataException {
    TreeIndexDiskOrderScanCursor cursor = (TreeIndexDiskOrderScanCursor) icursor;
    ctx.reset();
    MultiComparator cmp = MultiComparator.create(cmpFactories);
    SearchPredicate searchPred = new SearchPredicate(null, cmp);
    int currentPageId = bulkloadLeafStart;
    int maxPageId = freePageManager.getMaxPageId(ctx.getMetaFrame());
    ICachedPage page = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, currentPageId), false);
    page.acquireReadLatch();
    try {
        cursor.setBufferCache(bufferCache);
        cursor.setFileId(fileId);
        cursor.setCurrentPageId(currentPageId);
        cursor.setMaxPageId(maxPageId);
        ctx.getCursorInitialState().setOriginialKeyComparator(ctx.getCmp());
        ctx.getCursorInitialState().setPage(page);
        cursor.open(ctx.getCursorInitialState(), searchPred);
    } catch (Exception e) {
        page.releaseReadLatch();
        bufferCache.unpin(page);
        throw new HyracksDataException(e);
    }
}