Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

  1. ,
    Expert tip

    MySQL doesn't support some types of characters (such as emojis) with the utf8 encoding. You need to be on MySQL 5.5+ and force utf8mb4 (everywhere, client and server). You can do this sending the query "SET NAMES utf8mb4". Check this https://goo.gl/3E2qzg

  2. ,

    Make sure you are using InnoDB storage engine and READ-COMMITTED transaction isolation level and increase the database server innodb_lock_wait_timeout variable to about 500.

Solutions on the web

via Terracotta by rahulgoe, 1 year ago
Got error 157 'Unknown error code' from NDBCLUSTER]
java.sql.SQLException: Got error 157 'Unknown error code' from NDBCLUSTER	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4237)	at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:2190)	at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:2046)	at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:3543)	at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:491)	at com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:3245)	at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:2413)	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2836)	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2825)	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2156)	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2313)	at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery(NewProxyPreparedStatement.java:116)	at org.quartz.impl.jdbcjobstore.StdJDBCDelegate.selectSchedulerStateRecords(StdJDBCDelegate.java:3276)	at org.quartz.impl.jdbcjobstore.JobStoreSupport.findFailedInstances(JobStoreSupport.java:3229)