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Posted to commits@iotdb.apache.org by qi...@apache.org on 2020/04/21 12:56:55 UTC
[incubator-iotdb] branch master updated: [IOTDB-528]modify grafana
group by (#1073)
This is an automated email from the ASF dual-hosted git repository.
qiaojialin pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-iotdb.git
The following commit(s) were added to refs/heads/master by this push:
new e89fe25 [IOTDB-528]modify grafana group by (#1073)
e89fe25 is described below
commit e89fe259135d3185e52c3e3306dc83cc8d39b612
Author: Sail <37...@users.noreply.github.com>
AuthorDate: Tue Apr 21 20:56:49 2020 +0800
[IOTDB-528]modify grafana group by (#1073)
---
.../UserGuide/7-Ecosystem Integration/1-Grafana.md | 70 ++++++++++++----
.../UserGuide/7-Ecosystem Integration/1-Grafana.md | 65 +++++++++++----
grafana/readme.md | 74 ++++++++++++-----
grafana/readme_zh.md | 95 +++++++++++++++-------
.../iotdb/web/grafana/dao/impl/BasicDaoImpl.java | 70 ++++++++++------
.../main/resources}/application.properties | 10 ++-
6 files changed, 277 insertions(+), 107 deletions(-)
diff --git a/docs/UserGuide/7-Ecosystem Integration/1-Grafana.md b/docs/UserGuide/7-Ecosystem Integration/1-Grafana.md
index 7f3cb07..5ad4e9b 100644
--- a/docs/UserGuide/7-Ecosystem Integration/1-Grafana.md
+++ b/docs/UserGuide/7-Ecosystem Integration/1-Grafana.md
@@ -18,7 +18,7 @@
under the License.
-->
-# Grafana
+# IoTDB-Grafana
<!-- TOC -->
## Outline
@@ -59,7 +59,7 @@ grafana-cli plugins install grafana-simple-json-datasource
Alternatively, you can manually download the .zip file and unpack it into your grafana plugins directory.
-* `{grafana-install-directory}\data\plugin\` (Windows)
+* `{grafana-install-directory}\data\plugins\` (Windows)
* `/var/lib/grafana/plugins` (Linux)
* `/usr/local/var/lib/grafana/plugins`(Mac)
@@ -80,27 +80,22 @@ See https://github.com/apache/incubator-iotdb
```shell
git clone https://github.com/apache/incubator-iotdb.git
-mvn clean package -pl grafana -am -Dmaven.test.skip=true
-cd grafana
```
-Copy `application.properties` from `conf/` directory to `target` directory. (Or just make sure that `application.properties` and `iotdb-grafana-{version}.war` are in the same directory.)
+### Start IoTDB-Grafana
-Edit `application.properties`
+#### Option one
-```
-# ip and port of IoTDB
-spring.datasource.url = jdbc:iotdb://127.0.0.1:6667/
-spring.datasource.username = root
-spring.datasource.password = root
-spring.datasource.driver-class-name=org.apache.iotdb.jdbc.IoTDBDriver
-server.port = 8888
-```
+Import the entire project, after the maven dependency is installed, directly run`incubatoriotdb/grafana/rc/main/java/org/apache/iotdb/web/grafana`directory` TsfileWebDemoApplication.java`, this grafana connector is developed by springboot
-### Start IoTDB-Grafana
+#### Option two
+
+In `/grafana/target/`directory
```shell
-cd grafana/target/
+cd incubator-iotdb
+mvn clean package -pl grafana -am -Dmaven.test.skip=true
+cd grafana/target
java -jar iotdb-grafana-{version}.war
```
@@ -119,6 +114,8 @@ $ java -jar iotdb-grafana-{version}.war
...
```
+If you need to configure properties, move the `grafana/src/main/resources/application.properties` to the same directory as the war package (`grafana/target`)
+
## Explore in Grafana
The default port of Grafana is 3000, see http://localhost:3000
@@ -136,4 +133,43 @@ Select `Data Sources` and then `Add data source`, select `SimpleJson` in `Type`
Add diagrams in dashboard and customize your query. See http://docs.grafana.org/guides/getting_started/
-<img style="width:100%; max-width:800px; max-height:600px; margin-left:auto; margin-right:auto; display:block;" src="https://user-images.githubusercontent.com/13203019/51664878-6e54a380-1ff5-11e9-9718-4d0e24627fa8.png">
\ No newline at end of file
+<img style="width:100%; max-width:800px; max-height:600px; margin-left:auto; margin-right:auto; display:block;" src="https://user-images.githubusercontent.com/13203019/51664878-6e54a380-1ff5-11e9-9718-4d0e24627fa8.png">
+
+## config grafana
+
+```
+# ip and port of IoTDB
+spring.datasource.url=jdbc:iotdb://127.0.0.1:6667/
+spring.datasource.username=root
+spring.datasource.password=root
+spring.datasource.driver-class-name=org.apache.iotdb.jdbc.IoTDBDriver
+server.port=8888
+# Use this value to set timestamp precision as "ms", "us" or "ns", which must to be same with the timestamp
+# precision of Apache IoTDB engine.
+timestamp_precision=ms
+
+# Use this value to set down sampling true/false
+isDownSampling=true
+# defaut sampling intervals
+interval=1m
+# aggregation function to use to downsampling the data
+# COUNT, FIRST_VALUE, LAST_VALUE, MAX_TIME, MAX_VALUE, AVG, MIN_TIME, MIN_VALUE, NOW, SUM
+function=avg
+```
+
+The specific configuration information of interval is as follows
+
+<1h: no sampling
+
+1h~1d : intervals = 1m
+
+1d~30d:intervals = 1h
+
+\>30d：intervals = 1d
+
+After configuration, please re-run war package
+
+```
+java -jar iotdb-grafana-{version}.war
+```
+
diff --git a/docs/zh/UserGuide/7-Ecosystem Integration/1-Grafana.md b/docs/zh/UserGuide/7-Ecosystem Integration/1-Grafana.md
index bf7134a..bf65ca9 100644
--- a/docs/zh/UserGuide/7-Ecosystem Integration/1-Grafana.md
+++ b/docs/zh/UserGuide/7-Ecosystem Integration/1-Grafana.md
@@ -51,7 +51,7 @@ Grafana是开源的指标量监测和可视化工具，可用于展示时序数
* 插件名称: simple-json-datasource
* 下载地址: https://github.com/grafana/simple-json-datasource
-具体下载方法是：到Grafana的插件目录中：`{Grafana文件目录}\data\plugin\`（Windows系统，启动Grafana后会自动创建`data\plugin`目录）或`/var/lib/grafana/plugins` （Linux系统，plugins目录需要手动创建）或`/usr/local/var/lib/grafana/plugins`（MacOS系统，具体位置参看使用`brew install`安装Grafana后命令行给出的位置提示。
+具体下载方法是：到Grafana的插件目录中：`{Grafana文件目录}\data\plugins\`（Windows系统，启动Grafana后会自动创建`data\plugins`目录）或`/var/lib/grafana/plugins` （Linux系统，plugins目录需要手动创建）或`/usr/local/var/lib/grafana/plugins`（MacOS系统，具体位置参看使用`brew install`安装Grafana后命令行给出的位置提示。
执行下面的命令：
@@ -83,25 +83,20 @@ Shell > grafana-server --config=/usr/local/etc/grafana/grafana.ini --homepath /u
```shell
git clone https://github.com/apache/incubator-iotdb.git
-mvn clean package -pl grafana -am -Dmaven.test.skip=true
-cd grafana
```
-编译成功后，您需将`application.properties`文件从`conf/`目录复制到`target/`目录下，并在该文件中插入以下（编辑属性值）：
+### 启动IoTDB-Grafana
-```
-# ip and port of IoTDB
-spring.datasource.url = jdbc:iotdb://127.0.0.1:6667/
-spring.datasource.username = root
-spring.datasource.password = root
-spring.datasource.driver-class-name=org.apache.iotdb.jdbc.IoTDBDriver
-server.port = 8888
-```
+#### 方案一（适合开发者）
-### 启动IoTDB-Grafana
+导入整个项目，maven依赖安装完后，直接运行`incubatoriotdb/grafana/rc/main/java/org/apache/iotdb/web/grafana`目录下`TsfileWebDemoApplication.java`，这个grafana连接器采用springboot开发
+
+#### 方案二（适合使用者）
```shell
-cd grafana/target/
+cd incubator-iotdb
+mvn clean package -pl grafana -am -Dmaven.test.skip=true
+cd grafana/target
java -jar iotdb-grafana-{version}.war
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
@@ -113,10 +108,14 @@ java -jar iotdb-grafana-{version}.war
...
```
+如果您需要配置属性，将`grafana/src/main/resources/application.properties`移动到war包同级目录下（`grafana/target`）
+
## 使用Grafana
Grafana以网页的dashboard形式为您展示数据，在使用时请您打开浏览器，访问http://\<ip\>:\<port\>
+默认地址为http://localhost:3000/
+
注：IP为您的Grafana所在的服务器IP，Port为Grafana的运行端口（默认3000）。默认登录的用户名和密码都是“admin”。
### 添加IoTDB数据源
@@ -133,3 +132,41 @@ Grafana以网页的dashboard形式为您展示数据，在使用时请您打开
<img style="width:100%; max-width:800px; max-height:600px; margin-left:auto; margin-right:auto; display:block;" src="https://user-images.githubusercontent.com/13203019/51664878-6e54a380-1ff5-11e9-9718-4d0e24627fa8.png">
+## 配置grafana
+
+```
+# IoTDB的IP和端口
+spring.datasource.url=jdbc:iotdb://127.0.0.1:6667/
+spring.datasource.username=root
+spring.datasource.password=root
+spring.datasource.driver-class-name=org.apache.iotdb.jdbc.IoTDBDriver
+server.port=8888
+# Use this value to set timestamp precision as "ms", "us" or "ns", which must to be same with the timestamp
+# precision of Apache IoTDB engine.
+timestamp_precision=ms
+
+# 是否开启降采样
+isDownSampling=true
+# 默认采样interval
+interval=1m
+# 用于对数据进行降采样的聚合函数
+# COUNT, FIRST_VALUE, LAST_VALUE, MAX_TIME, MAX_VALUE, AVG, MIN_TIME, MIN_VALUE, NOW, SUM
+function=avg
+```
+
+其中interval具体配置信息如下
+
+<1h: no sampling
+
+1h~1d : intervals = 1m
+
+1d~30d:intervals = 1h
+
+\>30d：intervals = 1d
+
+配置完后，请重新运行war包
+
+```
+java -jar iotdb-grafana-{version}.war
+```
+
diff --git a/grafana/readme.md b/grafana/readme.md
index 00ed842..c52a1de 100644
--- a/grafana/readme.md
+++ b/grafana/readme.md
@@ -7,9 +7,9 @@
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
-
+
http://www.apache.org/licenses/LICENSE-2.0
-
+
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@@ -18,7 +18,7 @@
under the License.
-->
-# Grafana
+# IoTDB-Grafana
<!-- TOC -->
## Outline
@@ -59,7 +59,7 @@ grafana-cli plugins install grafana-simple-json-datasource
Alternatively, you can manually download the .zip file and unpack it into your grafana plugins directory.
-* `{grafana-install-directory}\data\plugin\` (Windows)
+* `{grafana-install-directory}\data\plugins\` (Windows)
* `/var/lib/grafana/plugins` (Linux)
* `/usr/local/var/lib/grafana/plugins`(Mac)
@@ -80,27 +80,22 @@ See https://github.com/apache/incubator-iotdb
```shell
git clone https://github.com/apache/incubator-iotdb.git
-mvn clean package -pl grafana -am -Dmaven.test.skip=true
-cd grafana
```
-Copy `application.properties` from `conf/` directory to `target` directory. (Or just make sure that `application.properties` and `iotdb-grafana-{version}.war` are in the same directory.)
+### Start IoTDB-Grafana
-Edit `application.properties`
+#### Option one
-```
-# ip and port of IoTDB
-spring.datasource.url = jdbc:iotdb://127.0.0.1:6667/
-spring.datasource.username = root
-spring.datasource.password = root
-spring.datasource.driver-class-name=org.apache.iotdb.jdbc.IoTDBDriver
-server.port = 8888
-```
+Import the entire project, after the maven dependency is installed, directly run`incubatoriotdb/grafana/rc/main/java/org/apache/iotdb/web/grafana`directory` TsfileWebDemoApplication.java`, this grafana connector is developed by springboot
-### Start IoTDB-Grafana
+#### Option two
+
+In `/grafana/target/`directory
```shell
-cd grafana/target/
+cd incubator-iotdb
+mvn clean package -pl grafana -am -Dmaven.test.skip=true
+cd grafana/target
java -jar iotdb-grafana-{version}.war
```
@@ -119,6 +114,8 @@ $ java -jar iotdb-grafana-{version}.war
...
```
+If you need to configure properties, move the ` grafana/src/main/resources/application.properties` to the same directory as the war package (`grafana/target`)
+
## Explore in Grafana
The default port of Grafana is 3000, see http://localhost:3000
@@ -136,4 +133,43 @@ Select `Data Sources` and then `Add data source`, select `SimpleJson` in `Type`
Add diagrams in dashboard and customize your query. See http://docs.grafana.org/guides/getting_started/
-<img style="width:100%; max-width:800px; max-height:600px; margin-left:auto; margin-right:auto; display:block;" src="https://user-images.githubusercontent.com/13203019/51664878-6e54a380-1ff5-11e9-9718-4d0e24627fa8.png">
\ No newline at end of file
+<img style="width:100%; max-width:800px; max-height:600px; margin-left:auto; margin-right:auto; display:block;" src="https://user-images.githubusercontent.com/13203019/51664878-6e54a380-1ff5-11e9-9718-4d0e24627fa8.png">
+
+## config grafana
+
+```
+# ip and port of IoTDB
+spring.datasource.url=jdbc:iotdb://127.0.0.1:6667/
+spring.datasource.username=root
+spring.datasource.password=root
+spring.datasource.driver-class-name=org.apache.iotdb.jdbc.IoTDBDriver
+server.port=8888
+# Use this value to set timestamp precision as "ms", "us" or "ns", which must to be same with the timestamp
+# precision of Apache IoTDB engine.
+timestamp_precision=ms
+
+# Use this value to set down sampling true/false
+isDownSampling=true
+# defaut sampling intervals
+interval=1m
+# aggregation function to use to downsampling the data
+# COUNT, FIRST_VALUE, LAST_VALUE, MAX_TIME, MAX_VALUE, AVG, MIN_TIME, MIN_VALUE, NOW, SUM
+function=avg
+```
+
+The specific configuration information of interval is as follows
+
+<1h: no sampling
+
+1h~1d : intervals = 1m
+
+1d~30d:intervals = 1h
+
+\>30d：intervals = 1d
+
+After configuration, please re-run war package
+
+```
+java -jar iotdb-grafana-{version}.war
+```
+
diff --git a/grafana/readme_zh.md b/grafana/readme_zh.md
index e9ba959..bf65ca9 100644
--- a/grafana/readme_zh.md
+++ b/grafana/readme_zh.md
@@ -7,9 +7,9 @@
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
-
+
http://www.apache.org/licenses/LICENSE-2.0
-
+
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@@ -18,25 +18,25 @@
under the License.
-->
-<!-- TOC -->
+
+# IoTDB-Grafana
+
## 概览
- IoTDB-Grafana
- - Grafana的安装与部署
- - 安装
- - simple-json-datasource数据源插件安装
- - 启动Grafana
- - IoTDB安装
- - IoTDB-Grafana连接器安装
- - 启动IoTDB-Grafana
- - 使用Grafana
- - 添加IoTDB数据源
- - 操作Grafana
+ - Grafana的安装与部署
+ - 安装
+ - simple-json-datasource数据源插件安装
+ - 启动Grafana
+ - IoTDB安装
+ - IoTDB-Grafana连接器安装
+ - 启动IoTDB-Grafana
+ - 使用Grafana
+ - 添加IoTDB数据源
+ - 操作Grafana
<!-- /TOC -->
-# IoTDB-Grafana
-
Grafana是开源的指标量监测和可视化工具，可用于展示时序数据和应用程序运行分析。Grafana支持Graphite，InfluxDB等国际主流时序时序数据库作为数据源。在IoTDB项目中，我们开发了Grafana展现IoTDB中时序数据的连接器IoTDB-Grafana，为您提供使用Grafana展示IoTDB数据库中的时序数据的可视化方法。
## Grafana的安装与部署
@@ -51,7 +51,7 @@ Grafana是开源的指标量监测和可视化工具，可用于展示时序数
* 插件名称: simple-json-datasource
* 下载地址: https://github.com/grafana/simple-json-datasource
-具体下载方法是：到Grafana的插件目录中：`{Grafana文件目录}\data\plugin\`（Windows系统，启动Grafana后会自动创建`data\plugin`目录）或`/var/lib/grafana/plugins` （Linux系统，plugins目录需要手动创建）或`/usr/local/var/lib/grafana/plugins`（MacOS系统，具体位置参看使用`brew install`安装Grafana后命令行给出的位置提示。
+具体下载方法是：到Grafana的插件目录中：`{Grafana文件目录}\data\plugins\`（Windows系统，启动Grafana后会自动创建`data\plugins`目录）或`/var/lib/grafana/plugins` （Linux系统，plugins目录需要手动创建）或`/usr/local/var/lib/grafana/plugins`（MacOS系统，具体位置参看使用`brew install`安装Grafana后命令行给出的位置提示。
执行下面的命令：
@@ -83,25 +83,20 @@ Shell > grafana-server --config=/usr/local/etc/grafana/grafana.ini --homepath /u
```shell
git clone https://github.com/apache/incubator-iotdb.git
-mvn clean package -pl grafana -am -Dmaven.test.skip=true
-cd grafana
```
-编译成功后，您需将`application.properties`文件从`conf/`目录复制到`target/`目录下，并在该文件中插入以下（编辑属性值）：
+### 启动IoTDB-Grafana
-```
-# ip and port of IoTDB
-spring.datasource.url = jdbc:iotdb://127.0.0.1:6667/
-spring.datasource.username = root
-spring.datasource.password = root
-spring.datasource.driver-class-name=org.apache.iotdb.jdbc.IoTDBDriver
-server.port = 8888
-```
+#### 方案一（适合开发者）
-### 启动IoTDB-Grafana
+导入整个项目，maven依赖安装完后，直接运行`incubatoriotdb/grafana/rc/main/java/org/apache/iotdb/web/grafana`目录下`TsfileWebDemoApplication.java`，这个grafana连接器采用springboot开发
+
+#### 方案二（适合使用者）
```shell
-cd grafana/target/
+cd incubator-iotdb
+mvn clean package -pl grafana -am -Dmaven.test.skip=true
+cd grafana/target
java -jar iotdb-grafana-{version}.war
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
@@ -113,10 +108,14 @@ java -jar iotdb-grafana-{version}.war
...
```
+如果您需要配置属性，将`grafana/src/main/resources/application.properties`移动到war包同级目录下（`grafana/target`）
+
## 使用Grafana
Grafana以网页的dashboard形式为您展示数据，在使用时请您打开浏览器，访问http://\<ip\>:\<port\>
+默认地址为http://localhost:3000/
+
注：IP为您的Grafana所在的服务器IP，Port为Grafana的运行端口（默认3000）。默认登录的用户名和密码都是“admin”。
### 添加IoTDB数据源
@@ -133,3 +132,41 @@ Grafana以网页的dashboard形式为您展示数据，在使用时请您打开
<img style="width:100%; max-width:800px; max-height:600px; margin-left:auto; margin-right:auto; display:block;" src="https://user-images.githubusercontent.com/13203019/51664878-6e54a380-1ff5-11e9-9718-4d0e24627fa8.png">
+## 配置grafana
+
+```
+# IoTDB的IP和端口
+spring.datasource.url=jdbc:iotdb://127.0.0.1:6667/
+spring.datasource.username=root
+spring.datasource.password=root
+spring.datasource.driver-class-name=org.apache.iotdb.jdbc.IoTDBDriver
+server.port=8888
+# Use this value to set timestamp precision as "ms", "us" or "ns", which must to be same with the timestamp
+# precision of Apache IoTDB engine.
+timestamp_precision=ms
+
+# 是否开启降采样
+isDownSampling=true
+# 默认采样interval
+interval=1m
+# 用于对数据进行降采样的聚合函数
+# COUNT, FIRST_VALUE, LAST_VALUE, MAX_TIME, MAX_VALUE, AVG, MIN_TIME, MIN_VALUE, NOW, SUM
+function=avg
+```
+
+其中interval具体配置信息如下
+
+<1h: no sampling
+
+1h~1d : intervals = 1m
+
+1d~30d:intervals = 1h
+
+\>30d：intervals = 1d
+
+配置完后，请重新运行war包
+
+```
+java -jar iotdb-grafana-{version}.war
+```
+
diff --git a/grafana/src/main/java/org/apache/iotdb/web/grafana/dao/impl/BasicDaoImpl.java b/grafana/src/main/java/org/apache/iotdb/web/grafana/dao/impl/BasicDaoImpl.java
index eef7689..cc2fc37 100644
--- a/grafana/src/main/java/org/apache/iotdb/web/grafana/dao/impl/BasicDaoImpl.java
+++ b/grafana/src/main/java/org/apache/iotdb/web/grafana/dao/impl/BasicDaoImpl.java
@@ -18,21 +18,20 @@
*/
package org.apache.iotdb.web.grafana.dao.impl;
+import java.time.Duration;
import org.apache.iotdb.tsfile.utils.Pair;
import org.apache.iotdb.web.grafana.bean.TimeValues;
import org.apache.iotdb.web.grafana.dao.BasicDao;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.PropertySource;
import org.springframework.jdbc.core.ConnectionCallback;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
@@ -46,38 +45,41 @@ import java.util.Properties;
* Created by dell on 2017/7/17.
*/
@Repository
+@PropertySource("classpath:application.properties")
public class BasicDaoImpl implements BasicDao {
private static final Logger logger = LoggerFactory.getLogger(BasicDaoImpl.class);
- private static final String CONFIG_PROPERTY_FILE = "application.properties";
-
private final JdbcTemplate jdbcTemplate;
private static long TIMESTAMP_RADIX = 1L;
+ @Value("${isDownSampling}")
+ private boolean isDownSampling;
+
+ @Value("${function}")
+ private String function;
+
+ @Value("${interval}")
+ private String interval;
+
+
@Autowired
public BasicDaoImpl(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
- try (InputStream inputStream = new FileInputStream(new File(CONFIG_PROPERTY_FILE))) {
- Properties properties = new Properties();
- properties.load(inputStream);
- String tsPrecision = properties.getProperty("timestamp_precision", "ms");
- switch (tsPrecision) {
- case "us":
- TIMESTAMP_RADIX = 1000;
- break;
- case "ns":
- TIMESTAMP_RADIX = 1000_000;
- break;
- default:
- TIMESTAMP_RADIX = 1;
- }
- logger.info("Use timestamp precision {}", tsPrecision);
- } catch (IOException e) {
- logger.error("Can not find properties [timestamp_precision], use default value [ms]");
- TIMESTAMP_RADIX = 1;
+ Properties properties = new Properties();
+ String tsPrecision = properties.getProperty("timestamp_precision", "ms");
+ switch (tsPrecision) {
+ case "us":
+ TIMESTAMP_RADIX = 1000;
+ break;
+ case "ns":
+ TIMESTAMP_RADIX = 1000_000;
+ break;
+ default:
+ TIMESTAMP_RADIX = 1;
}
+ logger.info("Use timestamp precision {}", tsPrecision);
}
@Override
@@ -103,14 +105,28 @@ public class BasicDaoImpl implements BasicDao {
public List<TimeValues> querySeries(String s, Pair<ZonedDateTime, ZonedDateTime> timeRange) {
Long from = zonedCovertToLong(timeRange.left);
Long to = zonedCovertToLong(timeRange.right);
- // How many rows will the result have?
+ final long hours = Duration.between(timeRange.left, timeRange.right).toHours();
+ List<TimeValues> rows = null;
String sql = String.format("SELECT %s FROM root.%s WHERE time > %d and time < %d",
s.substring(s.lastIndexOf('.') + 1), s.substring(0, s.lastIndexOf('.')),
from * TIMESTAMP_RADIX, to * TIMESTAMP_RADIX);
+ String columnName = "root." + s;
+ if (isDownSampling && (hours > 1)) {
+ if (hours < 30 * 24 && hours > 24) {
+ interval = "1h";
+ } else if (hours > 30 * 24) {
+ interval = "1d";
+ }
+ sql = String.format(
+ "SELECT " + function
+ + "(%s) FROM root.%s WHERE time > %d and time < %d group by ([%d, %d),%s)",
+ s.substring(s.lastIndexOf('.') + 1), s.substring(0, s.lastIndexOf('.')), from, to, from,
+ to, interval);
+ columnName = function + "(root." + s + ")";
+ }
logger.info(sql);
- List<TimeValues> rows = null;
try {
- rows = jdbcTemplate.query(sql, new TimeValuesRowMapper("root." + s));
+ rows = jdbcTemplate.query(sql, new TimeValuesRowMapper(columnName));
} catch (Exception e) {
logger.error(e.getMessage());
}
diff --git a/grafana/conf/application.properties b/grafana/src/main/resources/application.properties
similarity index 79%
rename from grafana/conf/application.properties
rename to grafana/src/main/resources/application.properties
index b2b982f..7847a8a 100644
--- a/grafana/conf/application.properties
+++ b/grafana/src/main/resources/application.properties
@@ -24,4 +24,12 @@ spring.datasource.driver-class-name=org.apache.iotdb.jdbc.IoTDBDriver
server.port=8888
# Use this value to set timestamp precision as "ms", "us" or "ns", which must to be same with the timestamp
# precision of Apache IoTDB engine.
-timestamp_precision=ms
\ No newline at end of file
+timestamp_precision=ms
+
+# Use this value to set down sampling true/false
+isDownSampling=true
+# defaut sampling intervals
+interval=1m
+# aggregation function to use to downsampling the data
+# COUNT, FIRST_VALUE, LAST_VALUE, MAX_TIME, MAX_VALUE, AVG, MIN_TIME, MIN_VALUE, NOW, SUM
+function=avg
\ No newline at end of file