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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/10/10 06:37:39 UTC
[GitHub] [shardingsphere] TeslaCN opened a new issue, #19512: ShardingSphere-Proxy MySQL cannot encode packet whose length >= 16 MB
TeslaCN opened a new issue, #19512:
URL: https://github.com/apache/shardingsphere/issues/19512
## Bug Report
### Which version of ShardingSphere did you use?
master - 00e8042d47305fec1bb4d15ba17f88ac22b0fe7c
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy MySQL
### Expected behavior
Query worked.
### Actual behavior
Client stuck.
### Reason analyze (If you can)
ShardingSphere-Proxy MySQL cannot encode packet whose length >= 16 MB.
### Example codes for reproduce this issue (such as a github link).
```java
import org.apache.commons.lang3.RandomStringUtils;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.concurrent.ThreadLocalRandom;
public class MySQLLargePacket {
public static void main(String[] args) throws Exception {
try (Connection connection = DriverManager.getConnection("jdbc:mysql://127.0.0.1:13306/bmsql", "root", "root")) {
try (Statement statement = connection.createStatement()) {
statement.execute("drop table if exists foo");
statement.execute("create table foo (id bigint primary key, str0 longtext)");
long id = ThreadLocalRandom.current().nextLong();
String str0 = RandomStringUtils.randomAlphanumeric((1 << 26) - 100);
String sql = "insert into foo (id, str0) values (" + id + ", '" + str0 + "')";
statement.execute(sql);
try (ResultSet resultSet = statement.executeQuery("select id, str0 from foo")) {
while (resultSet.next()) {
System.out.println("len: " + resultSet.getString("str0").length());
}
}
}
}
}
}
```
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[GitHub] [shardingsphere] strongduanmu closed issue #19512: ShardingSphere-Proxy MySQL cannot encode packet whose length >= 16 MB
Posted by GitBox <gi...@apache.org>.
strongduanmu closed issue #19512: ShardingSphere-Proxy MySQL cannot encode packet whose length >= 16 MB
URL: https://github.com/apache/shardingsphere/issues/19512
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[GitHub] [shardingsphere] github-actions[bot] closed issue #19512: ShardingSphere-Proxy MySQL cannot encode packet whose length >= 16 MB
Posted by GitBox <gi...@apache.org>.
github-actions[bot] closed issue #19512: ShardingSphere-Proxy MySQL cannot encode packet whose length >= 16 MB
URL: https://github.com/apache/shardingsphere/issues/19512
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[GitHub] [shardingsphere] TeslaCN commented on issue #19512: ShardingSphere-Proxy MySQL cannot encode packet whose length >= 16 MB
Posted by GitBox <gi...@apache.org>.
TeslaCN commented on issue #19512:
URL: https://github.com/apache/shardingsphere/issues/19512#issuecomment-1195085949
`org.apache.shardingsphere.db.protocol.mysql.codec.MySQLPacketCodecEngine` is also used by ShardingSphere Scaling. It might change a lot of codes to fix this issue.
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[GitHub] [shardingsphere] github-actions[bot] commented on issue #19512: ShardingSphere-Proxy MySQL cannot encode packet whose length >= 16 MB
Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on issue #19512:
URL: https://github.com/apache/shardingsphere/issues/19512#issuecomment-1272349263
Hello , this issue has not received a reply for several days.
This issue is supposed to be closed.
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[GitHub] [shardingsphere] TeslaCN commented on issue #19512: ShardingSphere-Proxy MySQL cannot encode packet whose length >= 16 MB
Posted by GitBox <gi...@apache.org>.
TeslaCN commented on issue #19512:
URL: https://github.com/apache/shardingsphere/issues/19512#issuecomment-1301596146
Refer to https://dev.mysql.com/doc/dev/mysql-server/latest/page_protocol_basic_packets.html
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