InfluxDB

How to get throughput( in influx db) of each sampler i have in jmeter test

由 余生长醉 提交于 2019-12-25 09:16:47
问题 I want to plot the graphs of throughput/unit time in grafana using influx db of each samplers i have in my jmeter test.I can get the overall throughput of a test/unit time (using additional tables delta and total in influx db). Can somebody help me to get this done. Or is there any way to get sampler wise throughput in influx db in the same way as we get count of sample zz “jmeter.zz.a.count".May be by using user.properties/jmeter.properties. Any kind of help in this appreciable. 回答1: Jmeter

Trouble Inserting DataFrame Into InfluxDB Using Python

由 我只是一个虾纸丫 提交于 2019-12-25 08:50:51
问题 I'm trying to insert a very large CSV file into InfluxDB and am inserting it as such in Python: influx_pd = influxdb.DataFrameClient(host, port, user, password, db, verify_ssl=False) for frame in pd.read_csv(infile, chunksize=batch_count): frame.set_index(pd.DatetimeIndex(frame[date_pk]), inplace=True) frame.dropna(axis=1, how='all') influx_pd.write_points(frame, 'patients') However, on the first call to write_points, I'm receiving this error (truncated): raise InfluxDBClientError(response

InfluxDB: store data in a single measurement

由 本秂侑毒 提交于 2019-12-25 04:15:51
问题 InfluxDB ideal way of storing data looks like the following: * temperature timestamp,iotid,value ---------------------------- 1501230195,iot1,70 * humidity timestamp,iotid,value ------------------------- 1501230195,iot1,45 * pressure timestamp,iotid,value ------------------------- 1501230195,iot1,850 How bad is to store data in a single measurement like so? * data timestamp,iotid,measure,value ---------------------------- 1501230195, iot1, temperare, 70 1501230195, iot1, humidity, 45

InfluxDB 基本认识

由 我的梦境 提交于 2019-12-24 21:43:29
一、InfluxDB 简介 　　InfluxDB 是用Go语言编写的一个开源分布式时序、事件和指标数据库，无需外部依赖。类似的数据库有Kairosdb、OpenTsdb等。 　　 三大特性： 　　　　　　 时序性（Time Series） ：与时间相关的函数的灵活使用（诸如最大、最小、求和等）； 　　　　　　 度量（Metrics） ：对实时大量数据进行计算； 　　　　　　 事件（Event） ：支持任意的事件数据，换句话说，任意事件的数据我们都可以做操作。 有以下七大特点： 　　1）schemaless(无结构)，可以是任意数量的列； 　　2）可拓展的; 　　3）支持min, max, sum, count, mean, median 等一系列函数，方便统计; 　　4）原生的HTTP支持，内置HTTP API； 　　5）强大的类SQL语法； 　　6）自带管理界面，方便使用，Built-in Explorer 自带管理工具； 　　7）Powerful Query Language 类似sql； influxdb的两个http端口： 　　port 8083 ：管理页面端口，访问localhost:8083可以进入你本机的influxdb管理页面； 　　port 8086 ：http连接influxdb client端口，一般使用该端口往本机的influxdb读写数据。 二、基本操作：

InfluxDB基本概念和操作

由 醉酒当歌 提交于 2019-12-24 15:33:59
InfluxDB基本概念和操作 InfluxDB基本概念 1、数据格式 在 InfluxDB 中，我们可以粗略的将要存入的一条数据看作 一个虚拟的 key 和其对应的 value(field value) 。格式如下： cpu_usage,host=server01,region=us-west value=0.64 1434055562000000000 虚拟的 key 包括以下几个部分： database, retention policy, measurement, tag sets, field name, timestamp。 database: 数据库名，在 InfluxDB 中可以创建多个数据库，不同数据库中的数据文件是隔离存放的，存放在磁盘上的不同目录。 retention policy: 存储策略，用于设置数据保留的时间，每个数据库刚开始会自动创建一个默认的存储策略 autogen，数据保留时间为永久，之后用户可以自己设置，例如保留最近2小时的数据。插入和查询数据时如果不指定存储策略，则使用默认存储策略，且默认存储策略可以修改。InfluxDB 会定期清除过期的数据。 measurement: 测量指标名，例如 cpu_usage 表示 cpu 的使用率。 tag sets: tags 在 InfluxDB 中会按照字典序排序，不管是 tagk 还是 tagv

InfluxDB - Query milliseconds since last data point in a time series

由 跟風遠走 提交于 2019-12-24 09:37:14
问题 Is it possible to write a InfluxDB query that will give me the number of milliseconds since the last entry in a time series? I'd like to add a single-stat panel in Grafana displaying how old the data is. 回答1: I don't think it is possible since you are not able to query the time alone. A influxdb query needs at least one non-time field in a query. You could workaround that by double saving the time in a extra field which you are able to query alone. But you still want to use now() - "the extra

InfluxDB: How to backfill measurement tags that were previously not measured (if possible at all)?

由 大憨熊 提交于 2019-12-24 06:41:21
问题 I'm started logging data from my Smart Meter using Node-RED about a month ago, it looked like this json data (the payload is the important bit): { "topic":"stat/smartmeter/all", "payload":"{ \"kwh_low_tarrif\":866.696, \"kwh_high_tarrif\":902.156, \"current_tarrif\":1, \"current_watt_draw\":485, \"gas_timestamp\":1554675307000, \"gas_total\":326.509, \"kwh_combined\":1768.852 }", "qos":0, "retain":false, "_topic":"stat/smartmeter/all", "_msgid":"db4ebc0.72b9a48" } The problem with this data

Weird C# / F# difference in a declaration, code compiling in C# but not in F#

由 本小妞迷上赌 提交于 2019-12-24 06:06:37
问题 The line is to instantiate a queue of data points for the InfluxDB driver: C# Events = new ConcurrentQueue<InfluxDatapoint<InfluxValueField>>(); F# let Events = new ConcurrentQueue<InfluxDatapoint<InfluxValueField>>() in C#, it compiles without problem, but in F#, I get this: [FS0001] The type 'InfluxValueField' is not compatible with the type 'IComparable' Following the comment from canton7, here is the source for both external elements: InfluxValueField: https://github.com/AdysTech/InfluxDB

Automatically clear old data

由 大城市里の小女人 提交于 2019-12-24 03:33:05
问题 Is it possible automatically to clear old data in Influx DB? Let's say some configuration option to keep records for 1 month only? In my server I store quite much statistics, so preventing running the free storage out I would like to have such feature. 回答1: Yes, it's simple, just add shard with Retention on 7 days. 来源： https://stackoverflow.com/questions/28232406/automatically-clear-old-data

InfluxDB - Getting only last value in query

由 你说的曾经没有我的故事 提交于 2019-12-23 07:27:53
问题 Is possible to query only for the last value (or n-th value) of the results of a query? For example, in the query: SELECT value FROM response_times WHERE time > now() - 1h limit 1000; Is possible to get only the last value, i.e. the one more far ago in time (possibly the 1000-th element)? Of course I can retrieve them all and then skip to the last one, but I don't want to waste bandwith this way. 回答1: In the API, have a look at first/last to select the first or last record of a column. You
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