//Ensures how many distributed table regions it has.
private void EnsureHTableRegions()
{
lock (_lockObj)
{
if (!_regions.TryGetValue(TableName, out _regionManager))
{
Region[] regions = _client.GetTableRegions(TableName);
_regions[TableName] = _regionManager = new HTableRegionManager(regions, _hostMappingManager);
}
}
}