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

Example 1 with RegionStats

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

the class RegionHeartbeatSender method collectRegionStats.

public RegionStats collectRegionStats(final TimeInterval timeInterval) {
    final RegionStats stats = new RegionStats();
    stats.setRegionId(region.getId());
    // Leader Peer sending the heartbeat
    stats.setLeader(new Peer(region.getId(), this.storeId, this.regionEngine.getStoreEngine().getSelfEndpoint()));
    // Leader considers that these peers are down
    // TODO
    // Pending peers are the peers that the leader can't consider as working followers
    // TODO
    // Bytes written for the region during this period
    stats.setBytesWritten(bytesWritten());
    // Bytes read for the region during this period
    stats.setBytesRead(bytesRead());
    // Keys written for the region during this period
    stats.setKeysWritten(keysWritten());
    // Keys read for the region during this period
    stats.setKeysRead(keysRead());
    // Approximate region size
    // TODO very important
    // Approximate number of keys
    ApproximateKVStats rangeStats = store().getApproximateKVStatsInRange(region.getStartKey(), region.getEndKey());
    stats.setApproximateKeys(rangeStats.getKeysCnt());
    stats.setApproximateSize(rangeStats.getSizeInBytes());
    // Actually reported time interval
    stats.setInterval(timeInterval);
    if (log.isDebugEnabled()) {
        log.info("Collect [RegionStats]: {}.", stats);
    }
    return stats;
}

Example 2 with RegionStats

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

the class StatsCollector method collectRegionStats.

public RegionStats collectRegionStats(final Region region, final TimeInterval timeInterval) {
    final RegionStats stats = new RegionStats();
    stats.setRegionId(region.getId());
    // Leader Peer sending the heartbeat
    stats.setLeader(new Peer(region.getId(), this.storeEngine.getStoreId(), this.storeEngine.getSelfEndpoint()));
    // Leader considers that these peers are down
    // TODO
    // Pending peers are the peers that the leader can't consider as working followers
    // TODO
    // Bytes written for the region during this period
    stats.setBytesWritten(getRegionBytesWritten(region, true));
    // Bytes read for the region during this period
    stats.setBytesRead(getRegionBytesRead(region, true));
    // Keys written for the region during this period
    stats.setKeysWritten(getRegionKeysWritten(region, true));
    // Keys read for the region during this period
    stats.setKeysRead(getRegionKeysRead(region, true));
    // Approximate region size
    // TODO very important
    // Approximate number of keys
    // ApproximateKVStats rangeStats = this.rawKVStore.getApproximateKVStatsInRange(
    // region.getStartKey(), region.getEndKey());
    // stats.setApproximateKeys(rangeStats.getKeysCnt());
    // stats.setApproximateSize(rangeStats.getSizeInBytes());
    // Actually reported time interval
    stats.setInterval(timeInterval);
    LOG.info("Collect [RegionStats]: {}.", stats);
    return stats;
}

Example 3 with RegionStats

use of io.dingodb.store.row.metadata.RegionStats 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;
}