lklkxcxc opened a new issue #4284: SQL query hung URL: https://github.com/apache/incubator-shardingsphere/issues/4284 stdout.logļ¼`[DEBUG] 15:14:08.595 [HikariPool-1 housekeeper] com.zaxxer.hikari.pool.HikariPool - HikariPool-1 - Pool stats (total=2, active=1, idle=1, waiting=0) Exception in thread "ShardingSphere-Command-13" java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOfRange(Arrays.java:3664) at java.lang.String.<init>(String.java:207) at java.nio.HeapCharBuffer.toString(HeapCharBuffer.java:567) at java.nio.CharBuffer.toString(CharBuffer.java:1241) at com.mysql.jdbc.StringUtils.toString(StringUtils.java:2253) at com.mysql.jdbc.ResultSetRow.getString(ResultSetRow.java:707) at com.mysql.jdbc.BufferRow.getString(BufferRow.java:527) at com.mysql.jdbc.ResultSetImpl.getStringInternal(ResultSetImpl.java:5245) at com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5127) at com.zaxxer.hikari.pool.HikariProxyResultSet.getString(HikariProxyResultSet.java) at org.apache.shardingsphere.core.execute.sql.execute.result.QueryResultUtil.getValueByColumnType(QueryResultUtil.java:121) at org.apache.shardingsphere.core.execute.sql.execute.result.QueryResultUtil.getValue(QueryResultUtil.java:51) at org.apache.shardingsphere.core.execute.sql.execute.result.MemoryQueryResult.getResultData(MemoryQueryResult.java:79) at org.apache.shardingsphere.core.execute.sql.execute.result.MemoryQueryResult.<init>(MemoryQueryResult.java:60) at org.apache.shardingsphere.shardingproxy.backend.communication.jdbc.execute.callback.ProxySQLExecuteCallback.createQueryResult(ProxySQLExecuteCallback.java:111) at org.apache.shardingsphere.shardingproxy.backend.communication.jdbc.execute.callback.ProxySQLExecuteCallback.executeSQL(ProxySQLExecuteCallback.java:93) at org.apache.shardingsphere.shardingproxy.backend.communication.jdbc.execute.callback.ProxySQLExecuteCallback.executeSQL(ProxySQLExecuteCallback.java:85) at org.apache.shardingsphere.shardingproxy.backend.communication.jdbc.execute.callback.ProxySQLExecuteCallback.executeSQL(ProxySQLExecuteCallback.java:54) at org.apache.shardingsphere.core.execute.sql.execute.SQLExecuteCallback.execute0(SQLExecuteCallback.java:68) at org.apache.shardingsphere.core.execute.sql.execute.SQLExecuteCallback.execute(SQLExecuteCallback.java:57) at org.apache.shardingsphere.core.execute.ShardingExecuteEngine.syncGroupExecute(ShardingExecuteEngine.java:125) at org.apache.shardingsphere.core.execute.ShardingExecuteEngine.parallelExecute(ShardingExecuteEngine.java:102) at org.apache.shardingsphere.core.execute.ShardingExecuteEngine.groupExecute(ShardingExecuteEngine.java:83) at org.apache.shardingsphere.core.execute.sql.execute.SQLExecuteTemplate.executeGroup(SQLExecuteTemplate.java:73) at org.apache.shardingsphere.shardingproxy.backend.communication.jdbc.execute.JDBCExecuteEngine.execute(JDBCExecuteEngine.java:82) at org.apache.shardingsphere.shardingproxy.backend.communication.jdbc.JDBCDatabaseCommunicationEngine.execute(JDBCDatabaseCommunicationEngine.java:93) at org.apache.shardingsphere.shardingproxy.backend.communication.jdbc.JDBCDatabaseCommunicationEngine.execute(JDBCDatabaseCommunicationEngine.java:78) at org.apache.shardingsphere.shardingproxy.backend.text.query.QueryBackendHandler.execute(QueryBackendHandler.java:54) at org.apache.shardingsphere.shardingproxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:73) at org.apache.shardingsphere.shardingproxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:86) at org.apache.shardingsphere.shardingproxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:66) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)`
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