Examples with SetRegionStateInMetaResponse org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.SetRegionStateInMetaResponse used on opensource projects

Example 1 with SetRegionStateInMetaResponse

use of org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.SetRegionStateInMetaResponse in project hbase by apache.

the class MasterRpcServices method setRegionStateInMeta.

/**
 * Update state of the region in meta only. This is required by hbck in some situations to cleanup
 * stuck assign/ unassign regions procedures for the table.
 *
 * @return previous states of the regions
 */
@Override
public SetRegionStateInMetaResponse setRegionStateInMeta(RpcController controller, SetRegionStateInMetaRequest request) throws ServiceException {
    rpcPreCheck("setRegionStateInMeta");
    SetRegionStateInMetaResponse.Builder builder = SetRegionStateInMetaResponse.newBuilder();
    try {
        for (RegionSpecifierAndState s : request.getStatesList()) {
            RegionSpecifier spec = s.getRegionSpecifier();
            String encodedName;
            if (spec.getType() == RegionSpecifierType.ENCODED_REGION_NAME) {
                encodedName = spec.getValue().toStringUtf8();
            } else {
                // TODO: actually, a full region name can save a lot on meta scan, improve later.
                encodedName = RegionInfo.encodeRegionName(spec.getValue().toByteArray());
            }
            RegionInfo info = this.server.getAssignmentManager().loadRegionFromMeta(encodedName);
            LOG.trace("region info loaded from meta table: {}", info);
            RegionState prevState = this.server.getAssignmentManager().getRegionStates().getRegionState(info);
            RegionState.State newState = RegionState.State.convert(s.getState());
            LOG.info("{} set region={} state from {} to {}", server.getClientIdAuditPrefix(), info, prevState.getState(), newState);
            Put metaPut = MetaTableAccessor.makePutFromRegionInfo(info, EnvironmentEdgeManager.currentTime());
            metaPut.addColumn(HConstants.CATALOG_FAMILY, HConstants.STATE_QUALIFIER, Bytes.toBytes(newState.name()));
            List<Put> putList = new ArrayList<>();
            putList.add(metaPut);
            MetaTableAccessor.putsToMetaTable(this.server.getConnection(), putList);
            // Loads from meta again to refresh AM cache with the new region state
            this.server.getAssignmentManager().loadRegionFromMeta(encodedName);
            builder.addStates(RegionSpecifierAndState.newBuilder().setRegionSpecifier(spec).setState(prevState.getState().convert()));
        }
    } catch (Exception e) {
        throw new ServiceException(e);
    }
    return builder.build();
}