Examples with IgfsMetaFileRangeUpdateProcessor org.apache.ignite.internal.processors.igfs.meta.IgfsMetaFileRangeUpdateProcessor used on opensource projects

Example 1 with IgfsMetaFileRangeUpdateProcessor

use of org.apache.ignite.internal.processors.igfs.meta.IgfsMetaFileRangeUpdateProcessor in project ignite by apache.

the class IgfsFragmentizerManager method processFragmentizerRequest.

/**
 * Processes fragmentizer request. For each range assigned to this node:
 * <ul>
 *     <li>Mark range as moving indicating that block copying started.</li>
 *     <li>Copy blocks to non-colocated keys.</li>
 *     <li>Update map to indicate that blocks were copied and old blocks should be deleted.</li>
 *     <li>Delete old blocks.</li>
 *     <li>Remove range from file map.</li>
 * </ul>
 *
 * @param req Request.
 * @throws IgniteCheckedException In case of error.
 */
@SuppressWarnings("fallthrough")
private void processFragmentizerRequest(IgfsFragmentizerRequest req) throws IgniteCheckedException {
    req.finishUnmarshal(igfsCtx.kernalContext().config().getMarshaller(), null);
    Collection<IgfsFileAffinityRange> ranges = req.fragmentRanges();
    IgniteUuid fileId = req.fileId();
    IgfsEntryInfo fileInfo = igfsCtx.meta().info(fileId);
    if (fileInfo == null) {
        if (log.isDebugEnabled())
            log.debug("Failed to find file info for fragmentizer request: " + req);
        return;
    }
    if (log.isDebugEnabled())
        log.debug("Moving file ranges for fragmentizer request [req=" + req + ", fileInfo=" + fileInfo + ']');
    for (IgfsFileAffinityRange range : ranges) {
        try {
            IgfsEntryInfo updated;
            switch(range.status()) {
                case RANGE_STATUS_INITIAL:
                    {
                        // Mark range as moving.
                        updated = igfsCtx.meta().updateInfo(fileId, new IgfsMetaFileRangeUpdateProcessor(range, RANGE_STATUS_MOVING));
                        if (updated == null) {
                            igfsCtx.data().cleanBlocks(fileInfo, range, true);
                            continue;
                        }
                    // Fall-through.
                    }
                case RANGE_STATUS_MOVING:
                    {
                        // Move colocated blocks.
                        igfsCtx.data().spreadBlocks(fileInfo, range);
                        // Mark range as moved.
                        updated = igfsCtx.meta().updateInfo(fileId, new IgfsMetaFileRangeUpdateProcessor(range, RANGE_STATUS_MOVED));
                        if (updated == null) {
                            igfsCtx.data().cleanBlocks(fileInfo, range, true);
                            continue;
                        }
                    // Fall-through.
                    }
                case RANGE_STATUS_MOVED:
                    {
                        // Remove old blocks.
                        igfsCtx.data().cleanBlocks(fileInfo, range, false);
                        // Remove range from map.
                        updated = igfsCtx.meta().updateInfo(fileId, new IgfsMetaFileRangeDeleteProcessor(range));
                        if (updated == null)
                            igfsCtx.data().cleanBlocks(fileInfo, range, true);
                    }
            }
        } catch (IgfsInvalidRangeException e) {
            if (log.isDebugEnabled())
                log.debug("Failed to update file range " + "[range=" + range + "fileId=" + fileId + ", err=" + e.getMessage() + ']');
        }
    }
}