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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/10/21 08:54:11 UTC
[GitHub] [shardingsphere] wangyu3619 opened a new issue, #21683: query error
wangyu3619 opened a new issue, #21683:
URL: https://github.com/apache/shardingsphere/issues/21683
when i query data ,throw this exception.
i debug the code ,find that the ShardingSphereSchema do have the informations about my ShardingSphereTables.
i use ShardingSphere-jdbc 5.2.0 in Standalone mode in my springboot project.
can you help me?
java.lang.NullPointerException: null
at org.apache.shardingsphere.sharding.merge.dql.orderby.OrderByValue.getOrderValuesCaseSensitiveFromTables(OrderByValue.java:74)
at org.apache.shardingsphere.sharding.merge.dql.orderby.OrderByValue.getOrderValuesCaseSensitive(OrderByValue.java:64)
at org.apache.shardingsphere.sharding.merge.dql.orderby.OrderByValue.<init>(OrderByValue.java:58)
at org.apache.shardingsphere.sharding.merge.dql.orderby.OrderByStreamMergedResult.orderResultSetsToQueue(OrderByStreamMergedResult.java:56)
at org.apache.shardingsphere.sharding.merge.dql.orderby.OrderByStreamMergedResult.<init>
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[GitHub] [shardingsphere] strongduanmu commented on issue #21683: query error
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #21683:
URL: https://github.com/apache/shardingsphere/issues/21683#issuecomment-1287552972
Please check whether your actualTable exists first, ShardingSphere will load metadata according to actualTable.
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[GitHub] [shardingsphere] wangyu3619 commented on issue #21683: query error
Posted by GitBox <gi...@apache.org>.
wangyu3619 commented on issue #21683:
URL: https://github.com/apache/shardingsphere/issues/21683#issuecomment-1287572472
actual-data-nodes all exists？but how to config when i use shardingsphere in time rolling tables circumstance. I can't find instructions for dynamically refreshing metadatas in 5.2.0
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[GitHub] [shardingsphere] wangyu3619 commented on issue #21683: query error
Posted by GitBox <gi...@apache.org>.
wangyu3619 commented on issue #21683:
URL: https://github.com/apache/shardingsphere/issues/21683#issuecomment-1287564100
The tables exist.when i config two rules，i can only get the metadata of logictable center_stat_info .but when i change the name of logic table node_stat_info to another one ，i can get the tables infomations of node_stat_info by sharingspheredatasource
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[GitHub] [shardingsphere] wangyu3619 commented on issue #21683: query error
Posted by GitBox <gi...@apache.org>.
wangyu3619 commented on issue #21683:
URL: https://github.com/apache/shardingsphere/issues/21683#issuecomment-1288623813
@strongduanmu how to config when i use shardingsphere in time rolling tables circumstance. I can't find instructions for dynamically refreshing metadatas in 5.2.0
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[GitHub] [shardingsphere] strongduanmu commented on issue #21683: query error
Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #21683:
URL: https://github.com/apache/shardingsphere/issues/21683#issuecomment-1287567015
From your screenshot, the actual table starting with 2023 does not exist. You need to ensure that the table configured in actual-data-nodes all exists.
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[GitHub] [shardingsphere] ZZemptypoint commented on issue #21683: query error
Posted by "ZZemptypoint (via GitHub)" <gi...@apache.org>.
ZZemptypoint commented on issue #21683:
URL: https://github.com/apache/shardingsphere/issues/21683#issuecomment-1414701135
@wangyu3619 In fact, actual tables can be defined ahead of time, for example
```groovy
actual-data-nodes: db1.center_stat_info_$->{2022..2050}q$->{1..4}
```
will generate table names `enter_stat_info_2022q1`, `enter_stat_info_2022q2`...`enter_stat_info_2050q4` and so on in ShardingSphere `availableTargetNames`,
but physical table such as `enter_stat_info_2050q4` does not need to be exist in database.
you can create physical table everyday in any way.
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[GitHub] [shardingsphere] wangyu3619 commented on issue #21683: query error
Posted by GitBox <gi...@apache.org>.
wangyu3619 commented on issue #21683:
URL: https://github.com/apache/shardingsphere/issues/21683#issuecomment-1286737462
i debug the code ,find that the ShardingSphereDataSource data source does not contain all my sharding tables infomation.
**this is my configs:**
`spring.shardingsphere.datasource.master.type=com.zaxxer.hikari.HikariDataSource
spring.shardingsphere.datasource.master.driver-class-name=org.mariadb.jdbc.Driver
spring.shardingsphere.datasource.master.jdbc-url=jdbc:mysql://127.0.0.1:3306/test-new-oms?useSSL=false&useServerPrepStmts=false&rewriteBatchedStatements=true&zeroDateTimeBehavior=convertToNull&characterEncoding=UTF-8
spring.shardingsphere.datasource.master.username=root
spring.shardingsphere.datasource.master.password=root
spring.shardingsphere.datasource.master.binding-tables=node_stat_info,stat_center_info
spring.shardingsphere.rules.sharding.tables.node_stat_info.actual-data-nodes=master.node_stat_info_$->{2022..2030}$->{['01','02','03','04','05','06','07','08','09','10','11','12']}$->{['01','02','03','04','05','06','07','08','09','10','11','12','13','14','15','16','17','18','19','20','21','22','23','24','25','26','27','28','29','30','31']}
spring.shardingsphere.rules.sharding.tables.center_stat_info.actual-data-nodes=master.stat_center_info_$->{2022..2030}$->{['01','02','03','04','05','06','07','08','09','10','11','12']}$->{['01','02','03','04','05','06','07','08','09','10','11','12','13','14','15','16','17','18','19','20','21','22','23','24','25','26','27','28','29','30','31']}
spring.shardingsphere.rules.sharding.tables.node_stat_info.table-strategy.standard.sharding-column=sampling_time
spring.shardingsphere.rules.sharding.tables.node_stat_info.table-strategy.standard.sharding-algorithm-name=sharding-by-day
spring.shardingsphere.rules.sharding.tables.center_stat_info.table-strategy.standard.sharding-column=sampling_time
spring.shardingsphere.rules.sharding.tables.center_stat_info.table-strategy.standard.sharding-algorithm-name=sharding-by-day
spring.shardingsphere.rules.sharding.sharding-algorithms.sharding-by-day.type=CLASS_BASED
spring.shardingsphere.rules.sharding.sharding-algorithms.sharding-by-day.props.strategy=standard
spring.shardingsphere.rules.sharding.sharding-algorithms.sharding-by-day.props.algorithmClassName=com.config.ShardingByDayTime`
i configed two rules ,but i can find only one shardingTable`s infomations in the ShardingSphereSchema.
I crete a table every day.
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[GitHub] [shardingsphere] wangyu3619 commented on issue #21683: query error
Posted by GitBox <gi...@apache.org>.
wangyu3619 commented on issue #21683:
URL: https://github.com/apache/shardingsphere/issues/21683#issuecomment-1286738671
i need help.
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