Question

我们有一个事件生成机制，可生成＆amp;将事件保存在flatfile中（或者说DB文件使其变得简单）。

要在数据库中查看此事件，我们将完成生成事件的运行＆amp;然后我们使用＆＃34; SQuirreL SQL Client 3.5.0＆＃34;。

当此db文件的大小很小时，SQuirreL Client工作正常。但当大小接近20MB时，它拒绝打开数据库＆amp;抛出异常 -

尝试打开SQL连接时发生意外错误。

以下是StackTrace供您参考：

java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.sql.SQLException: Out of Memory
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:202)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.awaitConnection(OpenConnectionCommand.java:132)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.access$100(OpenConnectionCommand.java:45)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand$2.run(OpenConnectionCommand.java:115)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.RuntimeException: java.sql.SQLException: Out of Memory
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.executeConnect(OpenConnectionCommand.java:171)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.access$000(OpenConnectionCommand.java:45)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand$1.run(OpenConnectionCommand.java:104)
    ... 5 more
Caused by: java.sql.SQLException: Out of Memory
    at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
    at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source)
    at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source)
    at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source)
    at net.sourceforge.squirrel_sql.fw.sql.SQLDriverManager.getConnection(SQLDriverManager.java:133)
    at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.executeConnect(OpenConnectionCommand.java:167)
    ... 7 more
Caused by: org.hsqldb.HsqlException: Out of Memory
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.persist.ScriptRunner.runScript(Unknown Source)
    at org.hsqldb.persist.ScriptRunner.runScript(Unknown Source)
    at org.hsqldb.persist.Log.processLog(Unknown Source)
    at org.hsqldb.persist.Log.open(Unknown Source)
    at org.hsqldb.persist.Logger.openPersistence(Unknown Source)
    at org.hsqldb.Database.reopen(Unknown Source)
    at org.hsqldb.Database.open(Unknown Source)
    at org.hsqldb.DatabaseManager.getDatabase(Unknown Source)
    at org.hsqldb.DatabaseManager.newSession(Unknown Source)
    ... 12 more

Answer 1

尝试增加分配给SQuirreL的内存。在文本编辑器中打开脚本或批处理文件，并更改分配的内存量。查找-Xmx256m并将256替换为更大的数字。

在Windows上，文件为squirrel-sql.bat，在Linux上为squirrel-sql.sh

＆＃34;尝试打开SQL连接时发生意外错误。＆＃34;使用SQuirreL SQL Client 3.5.0打开InMemory数据库时

1 个答案: