[GitHub] [shardingsphere] strongduanmu opened a new issue, #17887: Metadata lost when execute `refresh table metadata` statement

[GitBox <gi...@apache.org>]

strongduanmu opened a new issue, #17887:
URL: https://github.com/apache/shardingsphere/issues/17887

   ## Bug Report
   
   ### Which version of ShardingSphere did you use?
   
   https://github.com/apache/shardingsphere/commit/0162b7ef9fd740f2d371336c487ac471aea20a91
   
   ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
   
   ShardingSphere-Proxy
   
   ### Expected behavior
   
   Metadata load correctly when execute `refresh table metadata` statement
   
   ### Actual behavior
   
   Metadata lost. The actual public schema contains more than 80 tables, and when I finish `refresh table metadata`, there are only two tables.
   
   <img width="1475" alt="image" src="https://user-images.githubusercontent.com/10829171/169936713-65b28ea3-fe35-44dd-8bd0-6c947ee10b4f.png">
   
   ### Reason analyze (If you can)
   
   Wrong schemaName value, causing metadata to be overwritten.
   
   ```java
       /**
        * Reload meta data.
        *
        * @param databaseName database name to be reloaded
        * @param schemaName schema name to be reloaded
        */
       public void reloadMetaData(final String databaseName, final String schemaName) {
           try {
               Map<String, ShardingSphereSchema> schemas = loadActualSchema(databaseName, schemaName);
               alterSchemas(databaseName, schemas);
               for (ShardingSphereSchema each : schemas.values()) {
                   metaDataContexts.getPersistService().ifPresent(optional -> optional.getSchemaMetaDataService().persistTables(databaseName, schemaName, each));
               }
           } catch (final SQLException ex) {
               log.error("Reload database:{} meta data of schema:{} failed", databaseName, schemaName, ex);
           }
       }
   ```
   
   ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.
   
   ### Example codes for reproduce this issue (such as a github link).
   


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[GitHub] [shardingsphere] zjcnb commented on issue #17887: Metadata lost when execute `refresh table metadata` statement

[GitBox <gi...@apache.org>]

zjcnb commented on issue #17887:
URL: https://github.com/apache/shardingsphere/issues/17887#issuecomment-1135350838

   Thx, i will chekc it.


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[GitHub] [shardingsphere] strongduanmu closed issue #17887: Metadata lost when execute `refresh table metadata` statement

[GitBox <gi...@apache.org>]

strongduanmu closed issue #17887: Metadata lost when execute `refresh table metadata` statement
URL: https://github.com/apache/shardingsphere/issues/17887


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