inflow | Simple python InfluxDB client library | Time Series Database library
kandi X-RAY | inflow Summary
kandi X-RAY | inflow Summary
Simple python InfluxDB client library
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Top functions reviewed by kandi - BETA
- Write a measurement to the database
- Return a string representation of the measurement
- Convert a dict to a comma separated string
- Returns the write URL for the object
- Convert a timestamp to a timestamp
- Convert value to line value
- Extract the error from the response
- Perform a query
- Parse the query response
- Return the method for the given query
- Build query URL
- Create multiple Measurements
- Query a given query
- Wrapper around write_func
inflow Key Features
inflow Examples and Code Snippets
Community Discussions
Trending Discussions on inflow
QUESTION
I try to create my first API in Symfony. I have a little problem with my Delete function.
My entity class:
...ANSWER
Answered 2021-Jun-03 at 13:07/**
* @Route("inflows/delete/{id}", name="delete_inflow")
*/
public function inFlowDelete(InFlows $inFlows): JsonResponse {
$em = $this->getDoctrine()->getManager();
$em->remove($inFlows);
$em->flush();
return new JsonResponse("Success!");
}
QUESTION
I am looking at the DBStats of a web application in Golang. The metrics is exported to prometheus every 10s by sqlstats.
In the application, MaxOpenConns is set to 100, and MaxIdleConns is set to 50. And when I look into the metrics, I notice the number of open connections is stable around 50. This is expected, which means we are keeping 50 idle connections. However, the number of InUse connection is hovering between 0 and 5, and is 0 for most of the time. This is strange to me, because there is a constant inflow of traffic, and I don't expect the number of InUse connections to be 0.
Also, I notice WaitCount and MaxIdleClosed are pretty large. WaitCount means there is no idle connections left and sql.DB cannot open more connections due to MaxOpenConns limit. But from the stats above, there seems to be more than enough of headroom for sql.DB to create more connections (OpenConnections is way below MaxOpenConnections ). The big number of MaxIdleClosed also suggests sql.DB is making additional connections even when there are enough idle connections.
At the same time I am observing some driver: bad connection errors in the app and we are using MySQL.
Why does the app try to open more connections when there are enough idle connections around, and how should I tune the db param to reduce the issue?
...ANSWER
Answered 2021-May-23 at 21:32However, the number of InUse connection is hovering between 0 and 5, and is 0 for most of the time. This is strange to me, because there is a constant inflow of traffic, and I don't expect the number of InUse connections to be 0.
It is not strange. The number of InUse connections moves like spikes. Since you get stats only at every 10s, you just don't see the spike.
Why does the app try to open more connections when there are enough idle connections around,
See https://github.com/go-sql-driver/mysql#important-settings
"db.SetMaxIdleConns() is recommended to be set same to (or greater than) db.SetMaxOpenConns(). When it is smaller than SetMaxOpenConns(), connections can be opened and closed very frequently than you expect."
and how should I tune the db param to reduce the issue?
Follow the recommendation of the go-sql-driver/mysql README.
Use db.SetConnMaxLifetime(), and set db.SetMaxIdleConns() same to db.SetMaxOpenConns().
QUESTION
I have a problem with calculating a function in python. I want to calculate the IRR for a number of investment, all of which are described in their own dataframe. I have a dataframe for each investment up until a certain date, so I have a multiple dataframe describing the flows of payments the investment has made up until different dates for each investment, with the last row of each dataframe containing the information of the stock of capital that each investment has until that point. I do this in order to have like a time series of the IRR for each investment. Each dataframe of which I want to calculate the IRR is in a list.
To calculate the IRR for each dataframe I made these functions:
...ANSWER
Answered 2021-Apr-26 at 18:44As I have thought, it is a problem with the optimization method. When I have tried your irr function with the second df, I have even received a warning:
QUESTION
Hi i am creating this app and then i use javascript so that whatever i input in the boxes i could see it in my DETAILS HISTORY. and i did insert cells and stuff but when i run it i could see my table data getting inserted but only a few seconds then it will disappear i dont know why i hope you cn help me <3. here below is my codes
...ANSWER
Answered 2021-Apr-07 at 11:41- You are submitting the form - you can change the button to type="button" OR
- Don't use a submit button click to perform code, instead use the submit event and preventDefault()
QUESTION
I want to switch from Axis2 1.6.4 to 1.7.9 due to various circumstances. the pom.xml and axis2.xml have been adjusted accordingly (by the Apache Migration Guide). Previously I build the project via Eclipse but now it should be build via maven. Axis2 is embedded into the project via maven-war-plugin.
Now I can't get the Endpoint to show up like before the switch to 1.7.9 . Your help would be much appreciated.
My Endpoint should be: https://localhost:8443/SoapEndpoint/services/MainService.MainServiceHttpsSoap11Endpoint/
Edit: I also switched from Java 8 to 11
pom.xml
...ANSWER
Answered 2021-Mar-30 at 09:55After some research and help the solution has been found:
There appeared a breaking change in Axis2 1.7.0 (https://issues.apache.org/jira/browse/AXIS2-5340)
Adding the following lines to the axis2.xml fixed the problem for me:
QUESTION
Currently I am working on assigning different inflow rates (float values) to each product based on the product code => There should be 2 columns: PRODUCT_CODE' and 'INFLOW_RATE'. The product code has 4 characters and the rule is as followed:
- If the code starts with 'L','H' or 'M': assign float value = 1.0 to 'INFLOW_RATE' column.
- If the codes are 'SVND' or 'SAVL': assign float value = 0.1 to 'INFLOW_RATE' column.
- Other cases: assign float value = 0.5 to 'INFLOW_RATE' column.
The sample data is as followed:
There are > 50 product codes so I believe it is best to check the conditions and assign values using wildcards. So far I managed to come up with this code:
...ANSWER
Answered 2020-Dec-10 at 16:42Create your custom function like you would do with a simple string:
QUESTION
Is it considered good practice to have my mobile clients publish messages directly to Pub/Sub?
I am looking to publish topics about user views, taps, and overall activity information directly into Pub/Sub. The volume of data inflow is quite large, so I don't want to use Cloud Functions (will overkill on no. of invocations) or Cloud Endpoints (will unnecessarily flood my logs with pretty granular activity data).
But I have been searching Google Cloud's documentation, and could not find any way to securely publish messages from frontend (web, mobile) clients. I can solve this by giving a simple service account key (that only has publishing roles), but that seems bad practice to embed account key json files into the client?
The answer to a similar question: Is it good practice to have a React Native app Publish directly to a Google Pub/Sub topic? suggested putting Pub/Sub behind Cloud Functions, which I feel would incur a lot of costs for the data I am piping through.
...ANSWER
Answered 2020-Nov-10 at 21:01This solution paper is a fairly comprehensive answer to your question. There are others of course.
https://cloud.google.com/solutions/setting-up-a-pubsub-proxy-for-mobile-clients-on-gke
QUESTION
I try to model a pump in modelica and it throws me an error saying:
...ANSWER
Answered 2020-Oct-23 at 11:18Your valve models use the nominal pressure drop and flow (parameter CvData=Modelica.Fluid.Types.CvTypes.OpPoint — the default value) to define the valve coefficients so you shouldn't modify Av and Kv. Removing these four lines will help you on the way.
QUESTION
Hi I am struggling to translate some R code into Python code.
This is my R code:
...ANSWER
Answered 2020-Oct-10 at 08:17Use the ifelse function to replicate your R code:
QUESTION
I have a big data CSV file. I managed to merge them into one CSV file. Now when I read the file its is not consistent inflow. For example :
...ANSWER
Answered 2020-Sep-11 at 03:30If I understand your ideal outcome correctly, you want to order the data.frame df by the column ID and then save this as a csv file. If so, in your code you can add a line using order() and sort by id in ascending order and then save that data frame. By putting order inside the square brackets [] it retains the rest of your data. By putting order before the comma , inside the brackets, the data becomes ordered by the row values.
Instead of:
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Install inflow
You can use inflow like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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