locker | A distributed lock service in Go using etcd | Key Value Database library
kandi X-RAY | locker Summary
kandi X-RAY | locker Summary
A distributed lock service client for etcd.
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Top functions reviewed by kandi - BETA
- Lock locks a node
- New creates a new Etcd client
locker Key Features
locker Examples and Code Snippets
Community Discussions
Trending Discussions on locker
QUESTION
I've two observables, one is a data observable that holds the data and I've one locker observable. When the locker value has value 'lock' the data observable should send his data to his subscribers. When we unlock the data observable it should then send the last next value to the subscribers.
I've included a diagram that shows what I want. When the B source is L (locked) it should hold the value, when the B source is U it should pass the A value and return also the last know value on change.
Hope that someone can help me out with finding the right operator for this.
...ANSWER
Answered 2022-Mar-22 at 16:06Looks like you could do that with combineLatest()
:
QUESTION
I am trying to write the following function:
...ANSWER
Answered 2022-Mar-22 at 07:09When you constrain both X
and Y
to any
, you lose all interface-implementor relationship. The only thing that is known at compile time is that X
and Y
are different types, and you can't assign one to the another within the function body.
A way to make it compile is to use an explicit assertion:
QUESTION
I am trying to use JsonSchema
to validate rows in an RDD, in order to filter out invalid rows.
Here is my code:
...ANSWER
Answered 2022-Mar-10 at 15:05OK so a coworker helped me find a solution.
Sources:
- https://nathankleyn.com/2017/12/29/using-transient-and-lazy-vals-to-avoid-spark-serialisation-issues/
- https://www.waitingforcode.com/apache-spark/serialization-issues-part-2/read#serializable_factory_wrapper
Code:
QUESTION
I am trying to see how spoken-word and read-word frequency correlate with performance on a word game. here is my reproducible sample:
...ANSWER
Answered 2022-Mar-09 at 22:28Perhaps something like this?
QUESTION
I am trying to see how word frequency correlates with phonotactic probability using R, but there are a few issues. First, and most generally, I don't know merge these two graphs together (i want them to appear on the same axis).
This leads to a second problem because the first graph's y values are in probabilities, and the second is a count, so the scales are not the same. Should I combine data frames first, or is there a simpler way to merge two graphs?
Here is the reproducible sample, and the code for my graphs:
...ANSWER
Answered 2022-Mar-09 at 20:44One way could be to use a second y axis. Although this method is to be used critically, in this situation I think it is appropriate:
QUESTION
movies = [[1939, 'Gone With the Wind', 'drama'],
[1943, 'Casablanca', 'drama'],
[1961, 'West Side Story', 'musical'],
[1965, 'The Sound of Music', 'musical'],
[1969, 'Midnight Cowboy', 'drama'],
[1972, 'The Godfather', 'drama'],
[1973, 'The Sting', 'comedy'],
[1977, 'Annie Hall', 'comedy'],
[1981, 'Chariots of Fire', 'drama'],
[1982, 'Gandhi', 'historical'],
[1984, 'Amadeus', 'historical'],
[1986, 'Platoon', 'action'],
[1988, 'Rain Man', 'drama'],
[1990, 'Dances with Wolves', 'western'],
[1991, 'The Silence of the Lambs', 'drama'],
[1992, 'Unforgiven', 'western'],
[1993, 'Schindler s List', 'historical'],
[1994, 'Forrest Gump', 'comedy'],
[1995, 'Braveheart', 'historical'],
[1997, 'Titanic', 'historical'],
[1998, 'Shakespeare in Love', 'comedy'],
[2001, 'A Beautiful Mind', 'historical'],
[2002, 'Chicago', 'musical'],
[2009, 'The Hurt Locker', 'action'],
[2010, 'The Kings Speech', 'historical'],
[2011, 'The Artist', 'comedy'],
[2012, 'Argo', 'historical'],
[2013, '12 Years a Slave', 'drama'],
[2014, 'Birdman', 'comedy'],
[2016, 'Moonlight', 'drama'],
[2017, 'The Shape of Water', 'fantasy'],
[2018, 'Green Book', 'drama'],
[2019, 'Parasite', 'drama'],
[2020, 'Nomadland', 'drama'] ]
category = input("Enter a category: ")
for x in movies:
if category in x[2]:
print("\n",x[1])
if category not in x:
print("No matches")
...ANSWER
Answered 2022-Mar-04 at 04:24From what I understood, when you input as action
, you get the list of movies and then a No matches
like this:
QUESTION
I have a React Native project ver .66.4 with React-native-video 5.2.0 and React-native-video-controls 2.8.1
I have a VideoPlayer component that has custom controls built into the ref. This component works perfectly in iOS, but it doesn't work on Android. The controls don't update when pressed (play doesn't turn into pause) and in fullscreen it seems there's a view or something blocking the buttons.
My VideoPlayer component:
...ANSWER
Answered 2022-Mar-02 at 05:30I encountered same issue and you can use TapGestureHandler
from react-native-guesture-handler
to make the clicks work.
QUESTION
I have a table look like this in DataFrame:
couriers delivery price_list Alfred Locker 2 day(s) HKD $20 Hongkong Post 2 day(s) HKD $50 ZTO Express (To-Point) 2 day(s) HKD $20 Zeek2Door (To Home) 2 day(s) HKD $40 Kerry Express 2 day(s) HKD $30I would like to rearrange the table like below:
couriers_1 delivery_1 price_list_1 couriers_2 delivery_2 price_list_2 couriers_3 delivery_3 price_list_3 couriers_4 delivery_4 price_list_4 couriers_5 delivery_5 price_list_5 Alfred Locker 2 day(s) HKD $20 Hongkong Post 2 day(s) HKD $50 ZTO Express (To-Point) 2 day(s) HKD $20 Zeek2Door (To Home) 2 day(s) HKD $40 Kerry Express 2 day(s) HKD $30How can I use Pandas to solve this? I can't figure it out!
Data:
...ANSWER
Answered 2022-Feb-24 at 07:09I think you could unstack
+ convert MultiIndex to a plain index + transpose
:
QUESTION
1/ I get my data with this code and then im trying to extract the value of the attribute "sku":
...ANSWER
Answered 2022-Jan-20 at 18:45There are different things to point out:
Instead of
find_all()
that would return a resultset usefind()
, cause there is only one script tag the would match.Intstead of converting the tag and its content into a
str()
use.text
to extract the content.Main issue is that you have to replace all
"
in your extracted text, cause per se it is no valid json if you print, it would look like:'{"@context":"http://schema.org","@type":"Product","aggregateRating"...'
Fix:
QUESTION
I'm writing a script to backup existing bit locker keys to the associated device in Azure AD, I've created a function which goes through the bit locker enabled volumes and backs up the key to Azure however would like to know how I can check that the function has completed successfully without any errors. Here is my code. I've added a try and catch into the function to catch any errors in the function itself however how can I check that the Function has completed succesfully - currently I have an IF statement checking that the last command has run "$? - is this correct or how can I verify please?
...ANSWER
Answered 2022-Jan-07 at 02:22Unfortunately, as of PowerShell 7.2.1, the automatic
$?
variable has no meaningful value after calling a written-in-PowerShell function (as opposed to a binary cmdlet) . (More immediately, even inside the function,$?
only reflects$false
at the very start of thecatch
block, as Mathias notes).If PowerShell functions had feature parity with binary cmdlets, then emitting at least one (non-script-terminating) error, such as with
Write-Error
, would set$?
in the caller's scope to$false
, but that is currently not the case.You can work around this limitation by using
$PSCmdlet.WriteError()
from an advanced function or script, but that is quite cumbersome. The same applies to$PSCmdlet.ThrowTerminatingError()
, which is the only way to create a statement-terminating error from PowerShell code. (By contrast, thethrow
statement generates a script-terminating error, i.e. terminates the entire script and its callers - unless atry
/catch
ortrap
statement catches the error somewhere up the call stack).See this answer for more information and links to relevant GitHub issues.
As a workaround, I suggest:
Make your function an advanced one, so as to enable support for the common
-ErrorVariable
parameter - it allows you to collect all non-terminating errors emitted by the function in a self-chosen variable.Note: The self-chosen variable name must be passed without the
$
; e.g., to collection in variable$errs
, use-ErrorVariable errs
; do NOT useError
/$Error
, because$Error
is the automatic variable that collects all errors that occur in the entire session.You can combine this with the common
-ErrorAction
parameter to initially silence the errors (-ErrorAction SilentlyContinue
), so you can emit them later on demand. Do NOT use-ErrorAction Stop
, because it will render-ErrorVariable
useless and instead abort your script as a whole.
You can let the errors simply occur - no need for a
try
/catch
statement: since there is nothrow
statement in your code, your loop will continue to run even if errors occur in a given iteration.- Note: While it is possible to trap terminating errors inside the loop with
try
/catch
and then relay them as non-terminating ones with$_ | Write-Error
in thecatch
block, you'll end up with each such error twice in the variable passed to-ErrorVariable
. (If you didn't relay, the errors would still be collected, but not print.)
- Note: While it is possible to trap terminating errors inside the loop with
After invocation, check if any errors were collected, to determine whether at least one key wasn't backed up successfully.
As an aside: Of course, you could alternatively make your function output (return) a Boolean (
$true
or$false
) to indicate whether errors occurred, but that wouldn't be an option for functions designed to output data.
Here's the outline of this approach:
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