java.sql.SQLException: Lock wait timeout exceeded; try restarting transaction
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1094)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4208)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4140)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2597)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2758)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2820)
	at com.mysql.jdbc.StatementImpl.executeUpdate(StatementImpl.java:1759)
	at com.mysql.jdbc.StatementImpl.executeUpdate(StatementImpl.java:1679)
	at crawltwitter.DB.CredIncReqMade(DB.java:199)
	at crawltwitter.TwitterPool$T.IncReqMade(TwitterPool.java:28)
	at crawltwitter.CrawlTweets._CrawlUserTweets(CrawlTweets.java:197)
	at crawltwitter.CrawlTweets$1.run(CrawlTweets.java:28)