djession commented on issue #9966: URL: https://github.com/apache/shardingsphere/issues/9966#issuecomment-815409125
@terrymanu > What is your expectation? > Build `master` or `5.0.0-alpha` version? yesterday，building master and run it，via mysql-client-8 cli connect the shardingsphere-proxy，got exception： `Thanks for using Atomikos! Evaluate http://www.atomikos.com/Main/ExtremeTransactions for advanced features and professional support or register at http://www.atomikos.com/Main/RegisterYourDownload to disable this message and receive FREE tips & advice [INFO ] 2021-04-07 20:25:56.468 [main] o.a.s.p.i.i.AbstractBootstrapInitializer - Database name is `MySQL`, version is `8.0.23-0ubuntu0.20.04.1` [INFO ] 2021-04-07 20:25:56.780 [main] o.a.s.p.frontend.ShardingSphereProxy - ShardingSphere-Proxy start success. [DEBUG] 2021-04-07 20:34:17.120 [epollEventLoopGroup-3-1] o.a.s.db.protocol.codec.PacketCodec - Write to client 78e0025e : +-------------------------------------------------+ | 0 1 2 3 4 5 6 7 8 9 a b c d e f | +--------+-------------------------------------------------+----------------+ |00000000| 7b 00 00 00 0a 38 2e 30 2e 32 33 2d 30 75 62 75 |{....8.0.23-0ubu| |00000010| 6e 74 75 30 2e 32 30 2e 30 34 2e 31 2d 53 68 61 |ntu0.20.04.1-Sha| |00000020| 72 64 69 6e 67 53 70 68 65 72 65 2d 50 72 6f 78 |rdingSphere-Prox| |00000030| 79 20 35 2e 30 2e 30 2d 62 65 74 61 00 01 00 00 |y 5.0.0-beta....| |00000040| 00 77 66 35 70 66 58 56 6a 00 4f b7 21 02 00 08 |.wf5pfXVj.O.!...| |00000050| 00 15 00 00 00 00 00 00 00 00 00 00 6f 57 77 77 |............oWww| |00000060| 55 51 78 65 4c 4f 6b 79 00 6d 79 73 71 6c 5f 6e |UQxeLOky.mysql_n| |00000070| 61 74 69 76 65 5f 70 61 73 73 77 6f 72 64 00 |ative_password. | +--------+-------------------------------------------------+----------------+ [DEBUG] 2021-04-07 20:34:17.127 [epollEventLoopGroup-3-1] o.a.s.db.protocol.codec.PacketCodec - Read from client 78e0025e : +-------------------------------------------------+ | 0 1 2 3 4 5 6 7 8 9 a b c d e f | +--------+-------------------------------------------------+----------------+ |00000000| 3c 00 00 01 85 a6 ff 09 00 00 00 01 ff 00 00 00 |<...............| |00000010| 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| |00000020| 00 00 00 00 72 6f 6f 74 00 00 63 61 63 68 69 6e |....root..cachin| |00000030| 67 5f 73 68 61 32 5f 70 61 73 73 77 6f 72 64 00 |g_sha2_password.| +--------+-------------------------------------------------+----------------+ [DEBUG] 2021-04-07 20:34:17.130 [epollEventLoopGroup-3-1] o.a.s.db.protocol.codec.PacketCodec - Write to client 78e0025e : +-------------------------------------------------+ | 0 1 2 3 4 5 6 7 8 9 a b c d e f | +--------+-------------------------------------------------+----------------+ |00000000| 2c 00 00 02 fe 6d 79 73 71 6c 5f 6e 61 74 69 76 |,....mysql_nativ| |00000010| 65 5f 70 61 73 73 77 6f 72 64 00 77 66 35 70 66 |e_password.wf5pf| |00000020| 58 56 6a 6f 57 77 77 55 51 78 65 4c 4f 6b 79 00 |XVjoWwwUQxeLOky.| +--------+-------------------------------------------------+----------------+ [DEBUG] 2021-04-07 20:34:17.132 [epollEventLoopGroup-3-1] o.a.s.db.protocol.codec.PacketCodec - Read from client 78e0025e : +-------------------------------------------------+ | 0 1 2 3 4 5 6 7 8 9 a b c d e f | +--------+-------------------------------------------------+----------------+ |00000000| 14 00 00 03 ae 85 7e d6 fa 3b 20 a0 bc dc b6 d8 |......~..; .....| |00000010| 8a 28 5b d4 d5 6f 74 af |.([..ot. | +--------+-------------------------------------------------+----------------+ [DEBUG] 2021-04-07 20:34:17.137 [epollEventLoopGroup-3-1] o.a.s.db.protocol.codec.PacketCodec - Write to client 78e0025e : +-------------------------------------------------+ | 0 1 2 3 4 5 6 7 8 9 a b c d e f | +--------+-------------------------------------------------+----------------+ |00000000| 07 00 00 04 00 00 00 02 00 00 00 |........... | +--------+-------------------------------------------------+----------------+ [DEBUG] 2021-04-07 20:34:17.137 [epollEventLoopGroup-3-1] o.a.s.db.protocol.codec.PacketCodec - Read from client 78e0025e : +-------------------------------------------------+ | 0 1 2 3 4 5 6 7 8 9 a b c d e f | +--------+-------------------------------------------------+----------------+ |00000000| 21 00 00 00 03 73 65 6c 65 63 74 20 40 40 76 65 |!....select @@ve| |00000010| 72 73 69 6f 6e 5f 63 6f 6d 6d 65 6e 74 20 6c 69 |rsion_comment li| |00000020| 6d 69 74 20 31 |mit 1 | +--------+-------------------------------------------------+----------------+ [DEBUG] 2021-04-07 20:34:17.144 [ShardingSphere-Command-0] o.a.s.p.f.m.c.MySQLCommandExecutorFactory - Execute packet type: COM_QUERY, value: MySQLComQueryPacket(sql=select @@version_comment limit 1) [DEBUG] 2021-04-07 20:34:19.032 [epollEventLoopGroup-3-1] o.a.s.db.protocol.codec.PacketCodec - Write to client 78e0025e : +-------------------------------------------------+ | 0 1 2 3 4 5 6 7 8 9 a b c d e f | +--------+-------------------------------------------------+----------------+ |00000000| 22 00 00 01 ff cf 07 23 43 31 39 39 39 55 6e 6b |"......#C1999Unk| |00000010| 6e 6f 77 6e 20 65 78 63 65 70 74 69 6f 6e 3a 20 |nown exception: | |00000020| 5b 6e 75 6c 6c 5d |[null] | +--------+-------------------------------------------------+----------------+ [ERROR] 2021-04-07 20:34:19.042 [ShardingSphere-Command-0] o.a.s.p.f.c.CommandExecutorTask - Exception occur: java.lang.NullPointerException: null at org.apache.shardingsphere.infra.check.SQLCheckEngine.check(SQLCheckEngine.java:49) at org.apache.shardingsphere.proxy.backend.text.TextProtocolBackendHandlerFactory.sqlCheck(TextProtocolBackendHandlerFactory.java:92) at org.apache.shardingsphere.proxy.backend.text.TextProtocolBackendHandlerFactory.newInstance(TextProtocolBackendHandlerFactory.java:78) at org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.<init>(MySQLComQueryPacketExecutor.java:52) at org.apache.shardingsphere.proxy.frontend.mysql.command.MySQLCommandExecutorFactory.newInstance(MySQLCommandExecutorFactory.java:73) at org.apache.shardingsphere.proxy.frontend.mysql.command.MySQLCommandExecuteEngine.getCommandExecutor(MySQLCommandExecuteEngine.java:60) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:92) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:71) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)` -- This is an automated message from the Apache Git Service. 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