polardbx-sql
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polardb
PolarDB-X is a cloud native distributed SQL Database designed for high concurrency, massive storage, complex querying scenarios.
I have created my own cluster last week. And I destroyed it. When I try to restart a new cluster by the same yaml script, It's stay in creating state....
[root@my_ob ~]# kubectl get polardbxcluster -w NAME GMS CN DN CDC PHASE DISK AGE quick-start 0/1 0/1 0/1 0/1 Creating 8m6s
### 题目描述： DBLink功能允许在一个数据库连接另一个远程的数据库。DBLink创建好之后，可以像访问本地数据库一样访问远程数据库（例如本地库与远程库中表的JOIN等操作）。 ### 任务目标： 1. 支持PolarDB-X创建到MySQL与PolarDB-X的DBLink 2. 支持对于远程库的DML、DQL、DDL操作 3. 尽可能的下推更多算子到远程库 4. 支持相关的系统视图、权限管理等 ### 项目技术要求： 熟悉Java语言、了解数据库内核基本结构和DBLink基本过程 ### 题目难度 高 导师信息 Sun Mengshi，ASoC Mentor, [PolarDB-X](https://github.com/ApsaraDB/galaxysql) Committer. [email protected]（联系导师请附上个人简历）
# VERSION ## About PolarDB-X deployed by pxd pxd version: 0.3.0 polardbx/galaxysql latest "Created": "2022-04-28T11:05:22.088619Z" ## About ENV CentOS Linux release 7.9.2009 (Core) Python 3.6.8 Docker version 20.10.14, build a224086...
2021-12-01 09:48:07.466 [main] ERROR com.alibaba.polardbx.CobarConfig - [] Failed to init cobar server. com.alibaba.polardbx.common.exception.TddlRuntimeException: ERR-CODE: [PXC-9001][ERR_GMS_GENERIC] failed to create default db, err is ERR-CODE: [PXC-9001][ERR_GMS_GENERIC] No found any storage inst of...
The error message is as follows： ``` ERR-CODE: [TDDL-4614][ERR_EXECUTE_ON_MYSQL] Error occurs when execute on GROUP 'SNOWBERG_PRE_000004_GROUP' ATOM 'dskey_snowberg_pre_000004_group#pxc-xdb-s-pxchzr468jpnxhjv48be8#11.61.195.2-3315#snowberg_pre_000004': Lock wait timeout exceeded; try restarting transaction. ```
# phenonmenon When I followed the [source installation guide](https://github.com/ApsaraDB/galaxysql/blob/main/docs/en/quickstart-development.md) to compile galaxyengine, I found gcc cannot support `-fuse-ld=lld` option, the error messages of CMakeFiles/CMakeError.log looks like: ``` log Linking C...
I deployed a PolarDB-X clusters using the PXD tool，the galaxysql process crashed during sysbench tests. /home/admin/drds-server/logs/tddl/XLog.log 2021-10-28 17:14:00.403 ERROR ERR-CODE: [PXC-10004][ERR_X_PROTOCOL_RESULT] Fatal error when fetch data: Expectation failed: no_error HY000...
