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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/03/17 06:13:02 UTC
[GitHub] [shardingsphere] TeslaCN opened a new issue #16145: Connect to ShardingSphere-Proxy PostgreSQL by postgresql:42.3.1 caused ERROR: Failed to switch schema, please terminate current transaction
TeslaCN opened a new issue #16145:
URL: https://github.com/apache/shardingsphere/issues/16145
## Bug Report
Connect to ShardingSphere-Proxy PostgreSQL by JDBC driver `postgresql:42.2.5` cannot reproduce this issue.
### Which version of ShardingSphere did you use?
master - 47e6d19fae76d2d904dbf65c253dcd6a97f4ac22
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy PostgreSQL
### Expected behavior
No error occur.
### Actual behavior
```
Mar 17, 2022 2:08:19 PM org.postgresql.Driver connect
FINE: Connecting with URL: jdbc:postgresql://127.0.0.1:55432/sbtest?prepareThreshold=1&loggerLevel=debug
Mar 17, 2022 2:08:19 PM org.postgresql.jdbc.PgConnection <init>
FINE: PostgreSQL JDBC Driver 42.3.1
Mar 17, 2022 2:08:19 PM org.postgresql.jdbc.PgConnection setDefaultFetchSize
FINE: setDefaultFetchSize = 0
Mar 17, 2022 2:08:19 PM org.postgresql.jdbc.PgConnection setPrepareThreshold
FINE: setPrepareThreshold = 1
Mar 17, 2022 2:08:19 PM org.postgresql.core.v3.ConnectionFactoryImpl openConnectionImpl
FINE: Trying to establish a protocol version 3 connection to 127.0.0.1:55432
Mar 17, 2022 2:08:19 PM org.postgresql.core.v3.ConnectionFactoryImpl tryConnect
FINE: Receive Buffer Size is 65,536
Mar 17, 2022 2:08:19 PM org.postgresql.core.v3.ConnectionFactoryImpl tryConnect
FINE: Send Buffer Size is 1,313,280
Mar 17, 2022 2:08:19 PM org.postgresql.Driver connect
FINE: Connection error:
org.postgresql.util.PSQLException: ERROR: Failed to switch schema, please terminate current transaction.
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2674)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2364)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:354)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:314)
at org.postgresql.core.SetupQueryRunner.run(SetupQueryRunner.java:55)
at org.postgresql.core.v3.ConnectionFactoryImpl.runInitialQueries(ConnectionFactoryImpl.java:849)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:286)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:51)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:225)
at org.postgresql.Driver.makeConnection(Driver.java:466)
at org.postgresql.Driver.connect(Driver.java:265)
at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:681)
at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:229)
at icu.wwj.PrepareThreshold.getConnection(PrepareThreshold.java:33)
at icu.wwj.PrepareThreshold.main(PrepareThreshold.java:13)
Exception in thread "main" org.postgresql.util.PSQLException: ERROR: Failed to switch schema, please terminate current transaction.
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2674)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2364)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:354)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:314)
at org.postgresql.core.SetupQueryRunner.run(SetupQueryRunner.java:55)
at org.postgresql.core.v3.ConnectionFactoryImpl.runInitialQueries(ConnectionFactoryImpl.java:849)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:286)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:51)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:225)
at org.postgresql.Driver.makeConnection(Driver.java:466)
at org.postgresql.Driver.connect(Driver.java:265)
at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:681)
at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:229)
at icu.wwj.PrepareThreshold.getConnection(PrepareThreshold.java:33)
at icu.wwj.PrepareThreshold.main(PrepareThreshold.java:13)
```
### Reason analyze (If you can)
The SQL `SET extra_float_digits = 3` which will be routed to all data sources was sent after `begin`.
### Example codes for reproduce this issue (such as a github link).
```java
try (Connection connection = getConnection()) {
connection.setAutoCommit(false);
try (PreparedStatement preparedStatement = connection.prepareStatement("/*$0*/insert into sbtest1 /* $0 */ -- $0 \n (id, k, c, pad) \r values \r\n(?, ?, 'apsbd$31a', '$99')/*$0*/ \n--$0")) {
preparedStatement.setInt(1, -1);
preparedStatement.setInt(2, ThreadLocalRandom.current().nextInt());
preparedStatement.executeUpdate();
}
try (PreparedStatement preparedStatement = connection.prepareStatement("select * from sbtest1 where id = ?")) {
preparedStatement.setInt(1, -1);
try (ResultSet resultSet = preparedStatement.executeQuery()) {
while (resultSet.next()) {
System.out.println("c=" + resultSet.getString("c").trim() + ", pad=" + resultSet.getString("pad").trim());
}
}
}
connection.rollback();
}
```
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[GitHub] [shardingsphere] tristaZero closed issue #16145: Connect to ShardingSphere-Proxy PostgreSQL by postgresql:42.3.1 caused ERROR: Failed to switch schema, please terminate current transaction
Posted by GitBox <gi...@apache.org>.
tristaZero closed issue #16145:
URL: https://github.com/apache/shardingsphere/issues/16145
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[GitHub] [shardingsphere] TeslaCN commented on issue #16145: Connect to ShardingSphere-Proxy PostgreSQL by postgresql:42.3.1 caused ERROR: Failed to switch schema, please terminate current transaction
Posted by GitBox <gi...@apache.org>.
TeslaCN commented on issue #16145:
URL: https://github.com/apache/shardingsphere/issues/16145#issuecomment-1070374891
I found this issue is caused by https://github.com/pgjdbc/pgjdbc/pull/1977.
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[GitHub] [shardingsphere] tristaZero closed issue #16145: Connect to ShardingSphere-Proxy PostgreSQL by postgresql:42.3.1 caused ERROR: Failed to switch schema, please terminate current transaction
Posted by GitBox <gi...@apache.org>.
tristaZero closed issue #16145:
URL: https://github.com/apache/shardingsphere/issues/16145
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[GitHub] [shardingsphere] tristaZero commented on issue #16145: Connect to ShardingSphere-Proxy PostgreSQL by postgresql:42.3.1 caused ERROR: Failed to switch schema, please terminate current transaction
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #16145:
URL: https://github.com/apache/shardingsphere/issues/16145#issuecomment-1073211611
@TeslaCN Nice work.
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