wal | Write ahead log for Go
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kandi X-RAY | wal Summary
A simple and fast write ahead log for Go.
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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
Using Windows downloadable EXEs for Influx. Was connecting and working great until this morning.
I started influxd
today, and I see in the console:
ANSWER
Answered 2021-Jun-10 at 08:34You can follow below steps:
- Execute below command to check if you can access the
auth
list and see all tokens list and if you have read-write permissions :
influx.exe auth list
You can also view in dasboard: - If you are not able to see token, then you can generate a token with read/write or all access.
3. It might have also happened that the retention period that you choose must have been over due to which no measurement data is available. 4. You can create a new bucket and add token that you created in above step:
QUESTION
I'm having trouble in setting up a task migrating the data in a RDS Database (PostgreSQL, engine 10.15) into an S3 bucket in the initial migration + CDC mode. Both endpoints are configured and tested successfully. I have created the task twice, both times it ran a couple of hours at most, the first time the initial dump went fine and some of the incremental dumps took place as well, the second time only the initial dump finished and no incremental dump was performed before the task failed.
The error message is now:
...ANSWER
Answered 2021-Jun-01 at 05:03Should anyone get the same error in the future, here is what we were told by the AWS tech specialist:
There is a known (to AWS) issue with the pglogical plugin. The solution requires using the test_decoding plugin instead.
- Enforce using the test_decoding plugin on the DMS Endpoint by specifying pluginName=test_decoding in Extra Connection Attributes
- Create a new DMS task using this endpoint (using the old task may cause it to fail due to dissynchronization between the task and the logs)
It sure did resolve the issue, but we still don't know what the problem really was with the plugin that is strongly suggested everywhere in the DMS documentation (at the moment).
QUESTION
Running influxdb from a Docker container.
The YML includes Telegraf and Grafana, too.
I should point out that Grafana also is not loading in my browser.
When I run netstat -n -q
, and I look for "8086", I find these entries:
0.0.0.0:8086
[::]:8086
[::1]:8086
But I don't see 127.0.0.1:8086 as I would expect.
Here is the YAML.
...ANSWER
Answered 2021-May-30 at 10:29Well, this is a little embarrassing... I restarted Docker Desktop.
Successfully logged into InfluxDB. Dashboards appear.
QUESTION
Tried to venture in to the realm of making discord bots. Followed along with a fairly simple tutorial, tweaking it along the way to fit what I was trying to make. The bot originally worked, but I went back in to add the "Mistake" command, and suddenly it's not working. I added in console.log pretty much everywhere, trying to figure out how far everything was getting.
When I start the bot, it will spit out the "Bot Online" log. When I input a command, it will spit out the "Commands" log, but it won't register the command at all. I've tried looking for any minor typos, missing brackets, etc... but I just can't seem to figure out what's gone wrong. I'm hoping that someone here can help! Thank you!
...ANSWER
Answered 2021-May-28 at 14:57You are improperly splitting the message content. You added g
to the regex by accident.
Correct line:
QUESTION
I have a HTML table and with 6 input boxes that requires user to enter data and as the user clicks on the input box it show save so when the the user the user refresh/reloads or closes the web-page and opens the web-page back up the data must show on what he entered previously.
I tried the simple method using local storage to get data entered by user to save and display for the first input box ("FY") but doesn't work because it get into conflict when i try to get and save the data from same place. so just to see if it work made the line of code to show under the FY box if when the user enters any data it will save and show but not working. Any help will appreciated
...ANSWER
Answered 2021-May-12 at 16:32You could use the input
event listener to keep storing data to localStorage
. Replace SOME_ELEMENT
for whatever elements you want to use and SOME_DATA_KEY
with your preferred localStorage key.
Edit: Use the input
eventlistener
QUESTION
The PostgreSQL version I am trying to restore is 9.4.10. I backed up a database from the same version. The command I am using for restore is:
...ANSWER
Answered 2021-May-11 at 06:29You are trying to restore a large object into a database that already contains a large object with the same oid
.
Use a new database that does not contain any large objects yet as target for the restore.
Alternatively, drop the large objects first with
QUESTION
I wish to identify and then create a list in python all stocks (Capitalized Letters) mentioned here..
The problem I have a large text doc with many areas containing 2 3 or 4 Capitalised letters however i only want to get the ones that precede a paragraph ending (stocks-to-watcch are in the following paragraph):
i.e SE, SAM, PYPL, LAD, GLOB .....etc
Not sure if non capturing groups is the way to go or whether I can do look behinds.. if I do non capturing groups to I was thinking something like this would work but it doesn't... any help greatly appreciated
...ANSWER
Answered 2021-Apr-25 at 21:09Extract the substring between two strings:
QUESTION
I know that when dockers installs Milvus, port 19530
is the Milvus port. I would like to know what port 19121
does and if it can be installed without mapping this port?
The dockers command to install milvus is as follows:
ANSWER
Answered 2021-Apr-22 at 09:51Both of them seem to be used: https://milvus.io/docs/v0.10.1/milvus_config.md#Section-network
QUESTION
So I have one data frame with multiple columns, a good chunk of those columns are dichotomous variables of whether each case belongs to a certain group, said columns are the result of running %in% to turn them into a logical test and then codded into 0s and 1s. I ended up with only one of those columns with 1 per row, now I want create a category based on whether the row has a 1 or not. Why's my code not working (or very slow, it just seems stuck).
...ANSWER
Answered 2021-Apr-06 at 11:44It is not entirely clear what you're trying to do. From your code it seems like you're trying to overwrite the value in SECTOR
, with the ones indicated by the different sector columns (A guess based on their names).
Basically the problem here is that you are not performing any assignment. For example
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