sre | Operation and maintenance , python , sre knowledge points
kandi X-RAY | sre Summary
kandi X-RAY | sre Summary
Operation and maintenance, python, sre knowledge points summary
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Top functions reviewed by kandi - BETA
- Search for a list of target numbers
- Find the first occurrence of two integers
- Find the median of two NumPy arrays
- Find the kthth nearest kth point
- Calculates the sum of candidates from the candidates
- Finds the sum between candidate and target
- Search for a range of numbers
- Return the length of the longest substring in s
- Calculate the sum of sum between root and sum
sre Key Features
sre Examples and Code Snippets
Community Discussions
Trending Discussions on sre
QUESTION
Story: in my java code i have a few ScheduledFuture's that i need to run everyday on specific time (15:00 for example), the only available thing that i have is database, my current application and openshift with multiple pods. I can't move this code out of my application and must run it from there.
Problem: ScheduledFuture works on every pod, but i need to run it only once a day. I have a few ideas, but i don't know how to implement them.
Idea #1: Set environment variable to specific pod, then i will be able to check if this variable exists (and its value), read it and run schedule task if required. I know that i have a risk of hovered pods, but that's better not to run scheduled task at all than to run it multiple times.
Idea #2: Determine a leader pod somehow, this seems to be a bad idea in my case since it always have "split-brain" problem.
Idea #3 (a bit offtopic): Create my own synchronization algorithm thru database. To be fair, it's the simplest way to me since i'm a programmer and not SRE. I understand that this is not the best one tho.
Idea #4 (a bit offtopic): Just use quartz schedule library. I personally don't really like that and would prefer one of the first two ideas (if i will able to implement them), but at the moment it seems like my only valid choice.
UPD. May be you have some other suggestions or a warning that i shouldn't ever do that?
...ANSWER
Answered 2021-May-30 at 11:20You can create cron job using openshift https://docs.openshift.com/container-platform/4.7/nodes/jobs/nodes-nodes-jobs.html and have this job trigger some endpoint in you application that will invoke your logic.
QUESTION
I've question why Input onchange in JS doesn't work in my code. if I select 1st date it doesn't call function onchange="myFunction2(this.value)" but in the 2nd form it does. First function is working only if I keep pressing enter. Also check console.log and you'll see that 1st function isn't working
...ANSWER
Answered 2021-May-26 at 09:09Here is the another way to call myFunction2.
QUESTION
I have the following json data.
users:
...ANSWER
Answered 2021-May-26 at 07:36To keep dict keys in order, you'll have to use the standard OrderedDict class.
In the snippet below, I assume you have two JSON files users.json and groups.json.
QUESTION
I'm using the speech-rule-engine to generate English text from MathML. When trying to upgrade from v3.1.1 to v3.2.0 I'm seeing tests fail for reasons I don't understand.
I created a simple two file project that illustrates the issue:
package.json ...ANSWER
Answered 2021-May-12 at 13:41Problem solved, with the help of the maintainer of SRE. The problem is not in 3.2.0, but that jest does not wait for sre to be ready. The test was only correct by a fluke in 3.1.1 as the rules were compiled into the core. The following test fails with the above setup in 3.1.1 as well as the locale is not loaded:
QUESTION
Can a previous version of an Azure Storage Blob, with blob versioning enabled, be downloaded using Powershell or Azure CLI (or other) ?
In the Azure Portal, with Blob versioning enabled, you can download the previous versions, as in the image below:
Downloading previous version from Azure portal
Using Powershell, I can retrieve/download a list of previous versions with the Get-AZStorageBlob -IncludeVersion paramater
ANSWER
Answered 2021-Mar-15 at 07:33You can filter out the previous blobs by checking against IsLatestVersion, then selecting the last blob as the previous blob. Then you can download the blob with Get-AzStorageBlobContent using the pipeline.
QUESTION
quantmode newbie here,
My end goal is to have a CSV file including monthly stock prices, I've downloaded the data using getSymbols using this code:
...ANSWER
Answered 2021-Feb-22 at 18:27First get your data from the environment:
QUESTION
Compiler: go version go1.15.6 darwin/amd64
The same piece of code behaves differently if the -race option is used at compile time.
...ANSWER
Answered 2021-Mar-02 at 09:28what happen[s] when use '-race' flag in go build
Then the program is built with the so called "race detector" enabled. Dataraces are a programming error and any program with a datarace is invalid and its behaviour is undefined. You must never write code with data races.
A data race is when two or more goroutines read and write to the same memory without proper synchronisation. Data races happen but are a major fault of the programmer.
The race detector detects unsynchronised read/writes to the same memory and reports them as a failure (which it is). Note that if the race detector detects a data race your code is buggy even if it runs "properly" without -race.
The race detector is not on always because detecting data races slows down execution drastically.
QUESTION
Application:
- Spring boot version 2.2.13.RELEASE
- postgresql version 42.2.10
- quartz version 2.3.2
- quartz-jobs version 2.3.2
I have implemented a job quartz that calls a method implemented in a @Service bean. Into this method there are interactions with two Data base (Oracle and PostgreSql). Every Db is inizialized with a Hikari Connection pool
Postgresql DB in configuration bean:
...ANSWER
Answered 2021-Feb-18 at 08:57I resolved my issue with the set the property as written in the followed article:
[https://www.theguardian.com/info/2019/dec/02/faster-postgresql-connection-recovery]
My code is added configuration HikariCP:
QUESTION
I have some minute data for the stock SRE, that is a csv file. I have imported it and created a dataframe using the data. I then created a rolling 20 day moving average but I am getting an error. The code is:
...ANSWER
Answered 2021-Jan-04 at 00:54df.sort_index(inplace = True) right before the df.rolling('20D') line should do the trick.
The .rolling() function on a TimeSeries requires the rows to be ordered by time(-index), i. e. the time(-index) should be steadly increasing. This is done to prevent huge computational costs which the user does not expect. Simply sorting by index beforehand meets that requirement.
QUESTION
I am designing a system which needs to track tables of different types. It would be highly convenient to have one authoritative list of the tables*, and the best way to have this list would - I think - be as a list of Proxies, as at times I do need the type. I suppose HLists are an option, but even after 2 years of using Haskell a fair amount, they look unwieldy, so I was reaching for Dynamic.
- Actually, it would be best to have 0 lists, and just have a way to query all available instances of a particular type class at run time, but I'm not sure there's a way to do this (last I checked).
My code currently looks like this:
...ANSWER
Answered 2020-Dec-18 at 21:28To get a TypeRep (unindexed) from a Dynamic, there's dynTypeRep
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install sre
You can use sre 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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