Examples with Region io.dingodb.store.row.metadata.Region used on opensource projects

Example 46 with Region

use of io.dingodb.store.row.metadata.Region in project dingo by dingodb.

the class RegionRouteTable method removeRegion.

public boolean removeRegion(final long regionId) {
    final StampedLock stampedLock = this.stampedLock;
    final long stamp = stampedLock.writeLock();
    try {
        final Region region = this.regionTable.remove(regionId);
        if (region != null) {
            final byte[] startKey = BytesUtil.nullToEmpty(region.getStartKey());
            return this.rangeTable.remove(startKey) != null;
        }
    } finally {
        stampedLock.unlockWrite(stamp);
    }
    return false;
}

Example 47 with Region

use of io.dingodb.store.row.metadata.Region in project dingo by dingodb.

the class RegionRouteTable method splitRegion.

public void splitRegion(final String leftId, final Region right) {
    Requires.requireNonNull(right, "right");
    Requires.requireNonNull(right.getRegionEpoch(), "right.regionEpoch");
    final StampedLock stampedLock = this.stampedLock;
    final long stamp = stampedLock.writeLock();
    try {
        final Region left = this.regionTable.get(leftId);
        Requires.requireNonNull(left, "left");
        final byte[] leftStartKey = BytesUtil.nullToEmpty(left.getStartKey());
        final byte[] leftEndKey = left.getEndKey();
        final String rightId = right.getId();
        final byte[] rightStartKey = right.getStartKey();
        final byte[] rightEndKey = right.getEndKey();
        Requires.requireNonNull(rightStartKey, "rightStartKey");
        Requires.requireTrue(BytesUtil.compare(leftStartKey, rightStartKey) < 0, "leftStartKey must < rightStartKey");
        if (leftEndKey == null || rightEndKey == null) {
            Requires.requireTrue(leftEndKey == rightEndKey, "leftEndKey must == rightEndKey");
        } else {
            Requires.requireTrue(BytesUtil.compare(leftEndKey, rightEndKey) == 0, "leftEndKey must == rightEndKey");
            Requires.requireTrue(BytesUtil.compare(rightStartKey, rightEndKey) < 0, "rightStartKey must < rightEndKey");
        }
        final RegionEpoch leftEpoch = left.getRegionEpoch();
        leftEpoch.setVersion(leftEpoch.getVersion() + 1);
        left.setEndKey(rightStartKey);
        this.regionTable.put(rightId, right.copy());
        this.rangeTable.put(rightStartKey, rightId);
    } finally {
        stampedLock.unlockWrite(stamp);
    }
}

Example 48 with Region

use of io.dingodb.store.row.metadata.Region in project dingo by dingodb.

the class RegionHeartbeatHandler method split.

private Instruction split(RegionHeartbeatRequest request) {
    Region region = request.getRegion();
    RegionStats regionStats = request.getRegionStats();
    clusterStatsManager.addOrUpdateRegionStats(region, regionStats);
    final Set<String> stores = rowStoreMetaAdaptor.storeLocation().keySet();
    if (stores.isEmpty()) {
        return null;
    }
    if (clusterStatsManager.regionSize() >= stores.size()) {
        // one store one region is perfect
        return null;
    }
    final Pair<Region, RegionStats> modelWorker = clusterStatsManager.findModelWorkerRegion();
    if (!isSplitNeeded(request, modelWorker)) {
        return null;
    }
    final String newRegionId = rowStoreMetaAdaptor.newRegionId().seqNo().toString();
    final Instruction.RangeSplit rangeSplit = new Instruction.RangeSplit();
    rangeSplit.setNewRegionId(newRegionId);
    final Instruction instruction = new Instruction();
    instruction.setRegion(modelWorker.getKey().copy());
    instruction.setRangeSplit(rangeSplit);
    return instruction;
}

Example 49 with Region

use of io.dingodb.store.row.metadata.Region in project dingo by dingodb.

the class RowStoreMetaAdaptorImpl method mapping.

public Region mapping(RegionApp regionApp) {
    if (regionApp == null) {
        return null;
    }
    String regionId = regionApp.regionId();
    RegionView regionView = scheduleMetaAdaptor.regionView(regionApp.view());
    List<Peer> peerIds = regionView.nodeResources().stream().map(id -> new Peer(regionId, id.toString(), GeneralIdHelper.storeEndpoint(id))).collect(Collectors.toList());
    return new Region(regionId, regionApp.startKey(), regionApp.endKey(), new RegionEpoch(regionApp.version(), regionView.confVer()), peerIds);
}