} finally {
lastRetryTime = System.currentTimeMillis();
lock.unlock();
}
} else {
throw new AtomNotAvailableException(this.runTimeConf.getDbName() + " isNotAvailable"); //�����߳�fail-fast
}
} else {
if (valve.smoothThroughOnInitial()) {
return this.getConnection0(username, password);
} else {
throw new AtomNotAvailableException(this.runTimeConf.getDbName()
+ " squeezeThrough rejected on fatal reset"); //δͨ����λʱ����������
}
}
} catch (SQLException e) {
String dbType=this.runTimeConf.getDbType();