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layout: page displayTitle: Uniffle Migration Guide title: Uniffle Migration Guide description: Uniffle Migration Guide license: | Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Upgrading from Coordinator 0.6 to 0.7

• Since we have reconstructed the class file under coordinator, for the rss.coordinator.access.checkers parameter, the original value org.apache.unifle.coordinator.AccessClusterLoadChecker has been replaced with org.apache.unifle.coordinator.access.checker.AccessClusterLoadChecker, org.apache.unifle.coordinator.AccessCandidatesChecker has been replaced with org.apache.unifle.coordinator.access.checker.AccessCandidatesChecker, In addition, org.apache.unifle.coordinator.access.checker.AccessQuotaChecker has been added as the default checker.

Upgrading from Server 0.7 to 0.8 (unreleased)

• The configuration key rss.server.max.concurrency.of.single.partition.writer has been renamed to rss.server.max.concurrency.of.per-partition.write. However, we will continue to support the old key until version 0.9, at which point it will be deprecated.