ab513bf0ca
* 1. init ddl tables create tidb_ddl_job, tidb_ddl_reorg, tidb_ddl_history tables with raw meta write, these 3 tables is use to replace the ddl job queue and reorg and history hash table * 2. setup concurrent ddl env and add ddl worker pool adds the ddl worker pool definition, the ddl job manager will find a job and ship it to a worker in the worker pool. Also, this commit provides a sessionctx wrapper, only use in ddl relate. it just wraps begin, commit and execute * 3. add ddl manager to handle ddl job * 4. reorg handler for concurrent ddl just implements the partner of the reorg information. * 5. manage ddl jobs for concurrent ddl add the partner of add job, delete job and many others related to history job because many of the functions need a session now, we just change the caller * 6. add metrics for concurrent ddl add metrics * 7. support multiple tables * 8. fix test * 9. migrate ddl between table and queue support switch between the old and new ddl framework, migrate the existing ddl job between queue and table * 10. check tikv version and set reorg worker count according cpu count * *: add featuretag on tests Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com> * use a determined table id for 3 tables * remove ctx value * add GetSchemaVersionWithNonEmptyDiff function * address tangenta and zimulala comment * use only one etcd path * make ActionRenameTable support multi-schema * reset sql digest to make top sql work correct * add comment * fix test * remove 0 for schema version lock Co-authored-by: xiongjiwei <xiongjiwei1996@outlook.com> Co-authored-by: Ti Chi Robot <ti-community-prow-bot@tidb.io> Co-authored-by: wjHuang <huangwenjun1997@gmail.com>
31 lines
979 B
Go
31 lines
979 B
Go
// Copyright 2020 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package versioninfo
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const (
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// CommunityEdition is the default edition for building.
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CommunityEdition = "Community"
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)
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// Version information.
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var (
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TiDBBuildTS = "None"
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TiDBGitHash = "None"
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TiDBGitBranch = "None"
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TiDBEdition = CommunityEdition
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// TiKVMinVersion is the minimum version of TiKV that can be compatible with the current TiDB.
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TiKVMinVersion = "6.2.0-alpha"
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)
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