我在Azure上运行SQL Server。我有一个表，我存储了我监控的每个区域和通道的故障率和计数。如果任何地区/频道的失败率高于2％且连续三天的计数超过5，我需要将我的采样率从5％调整到7.5％。我尝试使用平均值，但是如果我有两天的大数量然后是一个小计数，那么这不能正确地给我结果。
我尝试使用过去三天的平均故障率和平均故障数，但这不起作用。例如： 12.57％和20计数 10.25％和4计数 10.71％和3计数
即使比率高于2％，计数也连续三天没有超过5。但是如果你取平均值，那么就得到了这个 -
11.17％和9个计数是假的。
表 -
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
TimeOutPane tp = new TimeOutPane();
tp.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
tp.executeTimeout();
}
});
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(tp);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
} catch (IOException ex) {
ex.printStackTrace();
}
}
});
}
public class TimeOutPane extends JPanel {
private BufferedImage background;
private float progress = 0;
private long startedAt;
private int timeout = 5000;
private Timer timer;
public TimeOutPane() throws IOException {
background = ImageIO.read(new File("/Volumes/Disk02/Dropbox/Ponies/url.png"));
}
public void setTimeout(int timeout) {
this.timeout = timeout;
}
public int getTimeout() {
return timeout;
}
public void setProgress(float progress) {
this.progress = progress;
repaint();
}
public float getProgress() {
return progress;
}
public void executeTimeout() {
if (timer == null) {
timer = new Timer(40, new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
long diff = System.currentTimeMillis() - startedAt;
float progress = diff / (float) timeout;
if (diff >= timeout) {
progress = 1f;
timer.stop();
}
setProgress(progress);
}
});
} else if (timer.isRunning()) {
timer.stop();
}
startedAt = System.currentTimeMillis();
timer.start();
}
@Override
public Dimension getPreferredSize() {
return background == null ? new Dimension(200, 200) : new Dimension(background.getWidth(), background.getHeight());
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
if (background != null) {
Graphics2D g2d = (Graphics2D) g.create();
applyQualityRenderingHints(g2d);
int x = (getWidth() - background.getWidth()) / 2;
int y = (getHeight() - background.getHeight()) / 2;
g2d.drawImage(background, x, y, this);
g2d.setComposite(AlphaComposite.SrcOver.derive(0.5f));
g2d.setColor(Color.BLACK);
int radius = Math.max(getWidth(), getHeight()) / 2;
g2d.fillArc(-radius, -radius, radius * 4, radius * 4, 90, (int) (360f * (1f - progress)));
g2d.dispose();
}
}
public void applyQualityRenderingHints(Graphics2D g2d) {
g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
}
}
}
当前存储过程 -
CREATE TABLE [dbo].[dfc_LoanRateRecords](
[Id] [int] IDENTITY(1,1) NOT NULL,
[rateDate] [datetime] NOT NULL,
[usOnlineRate] [float] NOT NULL,
[usOnlineCount] [int] NOT NULL,
[usRetailRate] [float] NOT NULL,
[usRetailCount] [int] NOT NULL,
[cdnOnlineRate] [float] NOT NULL,
[cdnOnlineCount] [int] NOT NULL,
[cdnRetailRate] [float] NOT NULL,
[cdnRetailCount] [int] NOT NULL,
[ukOnlineRate] [float] NOT NULL,
[ukOnlineCount] [int] NOT NULL,
[ukRetailRate] [float] NOT NULL,
[ukRetailCount] [int] NOT NULL,
CONSTRAINT [PK_dbo.dfc_LoanRateRecords] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
)
数据 -
ALTER PROCEDURE [dbo].[dfc_sp_average_loan_failure]
AS
BEGIN
SELECT
(CASE WHEN AVG(usOnlineRate) > 2.00 AND AVG(usOnlineCount) > 5 THEN 7.5 ELSE 5.0 END) AS usOnlineRate
,(CASE WHEN AVG(usRetailRate) > 2.00 AND AVG(usRetailCount) > 5 THEN 7.5 ELSE 5.0 END) AS usRetailRate
,(CASE WHEN AVG(cdnOnlineRate) > 2.00 AND AVG(cdnOnlineCount) > 5 THEN 7.5 ELSE 5.0 END) AS cdnOnlineRate
,(CASE WHEN AVG(cdnRetailRate) > 2.00 AND AVG(cdnRetailCount) > 5 THEN 7.5 ELSE 5.0 END) AS cdnRetailRate
,(CASE WHEN AVG(ukOnlineRate) > 2.00 AND AVG(ukOnlineCount) > 5 THEN 7.5 ELSE 5.0 END) AS ukOnlineRate
,(CASE WHEN AVG(ukRetailRate) > 2.00 AND AVG(ukRetailCount) > 5 THEN 7.5 ELSE 5.0 END) AS ukRetailRate
FROM dfc_LoanRateRecords
WHERE rateDate BETWEEN dateadd(day, -3, GetDate()) and GetDate()