java.lang.Error: IO Error: File corrupt: last_area_pointer is before data part of file. at com.mckoi.database.Database.init(Database.java:1649) at com.mckoi.database.control.DBController.startDatabase(DBController.java:129) at com.mckoi.database.jdbcserver.DefaultLocalBootable.boot(DefaultLocalBootable.java:135) at com.mckoi.database.jdbc.MDriver.connectToLocal(MDriver.java:425) at com.mckoi.database.jdbc.MDriver.connect(MDriver.java:461) at java.sql.DriverManager.getConnection(DriverManager.java:512) at java.sql.DriverManager.getConnection(DriverManager.java:171) at helma.objectmodel.db.DbSource.getConnection(DbSource.java:41) at helma.scripting.fesi.extensions.ESDatabase.(Database.java:67) at helma.scripting.fesi.extensions.Database$GlobalGetDBConnection.callFunction(Database.java:744) at FESI.Data.ESObject.doIndirectCallInScope(ESObject.java:551) at FESI.Interpreter.ScopeChain.doIndirectCall(ScopeChain.java:144) at FESI.Data.ESObject.doIndirectCallInScope(ESObject.java:548) at FESI.Data.ESArguments.doIndirectCallInScope(ESArguments.java:100) at FESI.Interpreter.ScopeChain.doIndirectCall(ScopeChain.java:144) at FESI.Interpreter.Evaluator.doIndirectCall(Evaluator.java:482) at FESI.Interpreter.EcmaScriptEvaluateVisitor.visit(EcmaScriptEvaluateVisitor.java:779) at FESI.AST.ASTCompositeReference.jjtAccept(ASTCompositeReference.java:26) at FESI.Interpreter.EcmaScriptEvaluateVisitor.visit(EcmaScriptEvaluateVisitor.java:362) at FESI.AST.ASTVariableDeclaration.jjtAccept(ASTVariableDeclaration.java:26) at FESI.Interpreter.EcmaScriptEvaluateVisitor.visit(EcmaScriptEvaluateVisitor.java:339) at FESI.AST.ASTStatement.jjtAccept(ASTStatement.java:26) at FESI.Interpreter.EcmaScriptEvaluateVisitor.visit(EcmaScriptEvaluateVisitor.java:320) at FESI.AST.ASTStatementList.jjtAccept(ASTStatementList.java:26) at FESI.Interpreter.EcmaScriptEvaluateVisitor.evaluateFunction(EcmaScriptEvaluateVisitor.java:161) at FESI.Interpreter.Evaluator.evaluateFunction(Evaluator.java:783) at FESI.Data.ConstructedFunctionObject.callFunction(ConstructedFunctionObject.java:122) at FESI.Data.ESObject.doIndirectCallInScope(ESObject.java:551) at FESI.Interpreter.ScopeChain.doIndirectCall(ScopeChain.java:144) at FESI.Data.ESObject.doIndirectCallInScope(ESObject.java:548) at FESI.Data.ESArguments.doIndirectCallInScope(ESArguments.java:100) at FESI.Interpreter.ScopeChain.doIndirectCall(ScopeChain.java:144) at FESI.Interpreter.Evaluator.doIndirectCall(Evaluator.java:482) at FESI.Interpreter.EcmaScriptEvaluateVisitor.visit(EcmaScriptEvaluateVisitor.java:779) at FESI.AST.ASTCompositeReference.jjtAccept(ASTCompositeReference.java:26) at FESI.Interpreter.EcmaScriptEvaluateVisitor.visit(EcmaScriptEvaluateVisitor.java:339) at FESI.AST.ASTStatement.jjtAccept(ASTStatement.java:26) at FESI.Interpreter.EcmaScriptEvaluateVisitor.visit(EcmaScriptEvaluateVisitor.java:320) at FESI.AST.ASTStatementList.jjtAccept(ASTStatementList.java:26) at FESI.Interpreter.EcmaScriptEvaluateVisitor.evaluateFunction(EcmaScriptEvaluateVisitor.java:161) at FESI.Interpreter.Evaluator.evaluateFunction(Evaluator.java:783) at FESI.Data.ConstructedFunctionObject.callFunction(ConstructedFunctionObject.java:122) at FESI.Data.ESObject.doIndirectCall(ESObject.java:530) at helma.scripting.fesi.FesiEngine.invoke(FesiEngine.java:409) at helma.scripting.fesi.PhantomEngine.invoke(PhantomEngine.java:14) at helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:438) at java.lang.Thread.run(Thread.java:554)

helma.org

Thanks. What's bothering me is that there was no writing to the DB when the crash happened, though it got broken. Is that perhaps something Mckoi specific? Could the same happen to a Mysql DB?

I think it's quite possible that Mckoi was writing while you shut down without your knowing. Mysql is certainly much more mature than Mckoi, but db corruption can always happen.