japan | As you may have heard , I ’ m planning a trip to Japan
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QUESTION
I have master-slave (primary-standby) streaming replication set up on 2 physical nodes. Although the replication is working correctly and walsender and walreceiver both work fine, the files in the pg_wal
folder on the slave node are not getting removed. This is a problem I have been facing every time I try to bring the slave node back after a crash. Here are the details of the problem:
postgresql.conf on master and slave/standby node
...ANSWER
Answered 2021-Jun-14 at 15:00You didn't describe omitting pg_replslot during your rsync, as the docs recommend. If you didn't omit it, then now your replica has a replication slot which is a clone of the one on the master. But if nothing ever connects to that slot on the replica and advances the cutoff, then the WAL never gets released to recycling. To fix you just need to shutdown the replica, remove that directory, restart it, (and wait for the next restart point to finish).
Do they need to go to wal_archive folder on the disk just like they go to wal_archive folder on the master node?
No, that is optional not necessary. It is set by archive_mode = always
if you want it to happen.
QUESTION
There seem to be lots of similar questions, but I cannot find the answer I need. So hopefully someone is able to help me.
Here are my two dataframes:
...ANSWER
Answered 2021-Jun-13 at 10:52Instead of merge
I think you should rbind
the two datasets. For clarity you can then get the data in wide format so that you have only 1 row for each country.
QUESTION
I want to work with 4 national football teams (England, Belgium, Germany and France) and n dates
...ANSWER
Answered 2021-Jun-12 at 20:26We can use tidyverse
methods.
- Extract the selected team from each row of 'Matches' with
str_extract
- Keep only the rows where there is a match i.e. NA rows are removed with
filter
- Use
pivot_wider
to reshape from long to 'wide' afterselect
ing the columns of interest - specify thevalues_fn
aslength
andvalues_fill
as 0 to change the defaultNA
to 0
QUESTION
I would like to group keys in a dictionary based on their respective similarity. I want to look for similarity within different keys, and if they are similar enough, group them. Probably by using some sort of similarity score. I am thus specifically not interested in how they values within those dictionary match up (in the example below I kept them the same). I have been looking at similarity scores using sklearn cosine_similarity, but I could not find a way to apply this to keys in a dictionary. Anyone any clues on this?
I made a test dictionary to show what I mean. Some keys are very similar, and I would like to group those. How to group those is beyond the point now, but let's say I would like to add the numbers up.
As always, many thanks!
...ANSWER
Answered 2021-Jun-12 at 19:44QUESTION
I have a pandas DataFrame which looks like this
...ANSWER
Answered 2021-Jun-10 at 13:44You can use get_level_values
to filter.
QUESTION
A couple of days it was working well the ServiceURL value is "https://smba.trafficmanager.net/apac" which was clearly the location is "APAC" but recently sometimes the ServiceURL value change to "https://smba.trafficmanager.net/jp" and I believe this map for japan.
...ANSWER
Answered 2021-Feb-28 at 18:36For better understanding copying comments to answer @Eze
For each user the the service url will be different based on the region. This is by design.
QUESTION
How to arrange the filtered QListwidget items in the following order,
- List item starting with the search term.
- List item containing anywhere in the search term and finally.
- List item ends in the search item.
For example, In My Program, my search term is "I", I want to arrange item starts with "I" ("India", "Iceland", "Iran"), then item containing anywhere ("America", "China", "Fiji","Russia"), finally items end with search term "I" ("Brunei", "Mali")
...ANSWER
Answered 2021-Jun-09 at 05:57There are few ways to do go about what you are trying to acheive. One is to sort the list based on a key.
In your case, it could be
QUESTION
I am looking for an efficient approach to build a tree from the following data structure in JavaScript. Each entry always has length 5 and there never exists any gaps (i.e. nulls) between the entries.
...ANSWER
Answered 2021-Jun-07 at 14:33You can group the arrays on the first element of each subarray, and then call to_tree
to the grouped arrays if they are not empty:
QUESTION
I would like the last field to have 50px border radius on the right. Why is this not working?
...ANSWER
Answered 2021-Jun-07 at 09:07Add this css on your code
QUESTION
I have the following data in a json file. I want this data to be shown in dropdown lists, as: In first drop down, I can select the country. In second drop down, I can select from the states of the selected country. Then, the population of the place is shown in text below on the html page.
...ANSWER
Answered 2021-Jun-07 at 08:40Not sure how you want it but here is what I have done. I have used .map()
for filtering the unique country and parse it to the country dropdown. Btw, I also used the filtering at the last part for getting the population result once you have the country and state selected.
Check it out .map() and .filter for more info
And here is the working JsFiddle
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