技術標籤：sparkSpark Sql

載入 metastore_db issue

Database Class Loader started - derby.database.classpath=''
21/01/20 06:30:33 ERROR PoolWatchThread: Error in trying to obtain a connection. Retrying in 7000ms
java.sql.SQLException: A read-only user or a user in a read-only database is not permitted to disable read-only mode on a connection.
	at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
	at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)
	at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
	at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
	at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
	at org.apache.derby.impl.jdbc.EmbedConnection.setReadOnly(Unknown Source)
	at com.jolbox.bonecp.ConnectionHandle.setReadOnly(ConnectionHandle.java:1324)
	at com.jolbox.bonecp.ConnectionHandle.<init>(ConnectionHandle.java:262)
	at com.jolbox.bonecp.PoolWatchThread.fillConnections(PoolWatchThread.java:115)
	at com.jolbox.bonecp.PoolWatchThread.run(PoolWatchThread.java:82)
	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)
Caused by: ERROR 25505: A read-only user or a user in a read-only database is not permitted to disable read-only mode on a connection.
	at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
	at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
	at org.apache.derby.impl.sql.conn.GenericAuthorizer.setReadOnlyConnection(Unknown Source)
	at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.setReadOnly(Unknown Source)
	... 8 more

 

這是因為 metastore_db 生成使用者，和讀取使用者不是 同一個使用者， 使用如下命令改變許可權即可解決。

chmod 777 -R metastore_db