I have just installed MariaDB via homebrew on my Mac. At the end of the installation I got the following error:
Warning: The post-install step did not complete successfully
You can try again using `brew postinstall mariadb`
If I run brew postinstall mariadb I get:
==> /usr/local/Cellar/mariadb/5.5.34/bin/mysql_install_db --verbose --user=andrew --basedir=/usr/loca
MariaDB is hosted on launchpad; You can find the latest source and
email lists at http://launchpad.net/maria
Please check all of the above before mailing us! And remember, if
you do mail us, you should use the /usr/local/Cellar/mariadb/5.5.34/scripts/mysqlbug script!
READ THIS: https://github.com/mxcl/homebrew/wiki/troubleshooting
Which isn't helpful! The tutorial I was following told me to run unset TEMPDIR, then mysql_install_db --user=mysql --basedir=$(brew --prefix mariadb); running those results in the following:
/usr/local/opt/mariadb/bin/my_print_defaults: Can't read dir of '/usr/local/etc/my.cnf.d' (Errcode: 2)
Fatal error in defaults handling. Program aborted
chown: ./data: Operation not permitted
Cannot change ownership of the database directories to the 'mysql'
user. Check that you have the necessary permissions and try again.
I suspect the problem has something to do with the /usr/local/etc/my.cnf.d folder. I've seen this referred to in a couple of things I've tried, but it doesn't exist on my machine. I have tried a few different mysql_install_db commands I've found in other tutorials, but they all throw up a (different) error message.
Thanks for any help!
Just open the config file at /usr/local/etc/my.cnf with your editor and comment out the following line:
!includedir /usr/local/etc/my.cnf.d
Having been unsuccessful with further Googling of the problem I tried manually creating a /usr/local/etc/my.cnf.d and now the mysql_install_db command seems to have worked okay. I'm not sure if this is the appropriate solution or if my.cnf.d not existing is indicative of a deeper problem with the install but, as things seem to be working, I'll mark as resolved.
[Update] As I was a little unsure in my answer whether this was the 'correct' solution I just wanted to confirm that, after a month, everything is still working fine.
None of the solution here helped, I had to do this:
The post-install step did not complete successfully MySQL Mac OS Sierra
in short,
I made a backup of the folder /usr/local/var/mysql , then removed it
removed Mariadb brew remove mariadb
reinstalled Mariadb brew install mariadb
run brew services start mariadb
After that I could access with mysql -u root
You might have an orphaned configuration file. I was able to solve this problem by deleting an old /usr/local/etc/my.cnf. YMMV.
If you're having this problem in 2021
This worked for me:
sudo mysql_install_db
sudo chown -R <YOUR USER NAME HERE> /usr/local/mysql # for example sudo chown -R jperez /usr/mysql
sudo chgrp -R admin /usr/local/mysql
After that, running mysql or mariadb will show the database prompt.
This problem seems to have recently gone away.
A simple bew upgrade resolved the problem for me.
You may want to go
/usr/local/mysql
and delete the old MySQL file and install again
i'm trying to learn mongo db on my mac. I installed mondgo db using homebrew and it appeard successful. I created the dir /data/db. when I type mongo into the terminal I get:
Error: couldn't connect to server [a bunch of numbers] at src/mongo/shell/mongo.js:145 exception:connect failed
I looked at the following answer on SO: Installing and Running MongoDB on OSX
in the check answer it says:
1) Start a terminal for your mongo server
2)Go to mongo/bin directory
What does it mean to start a terminal for your server? does that mean just open up a new terminal window?
Where can I find the mongo/bin directory?
Any other suggestions on getting mondoDB up and running would be appreciated.
you should read the documentation here: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-os-x/
And follow the instructions.
In this case the [bunch of numbers] are the hostname/ip and port number that the binary mongo has tried to connect to. What it's telling you is that there is no mongod binary listening on the hostname and port that mongo is trying to connect to.
You will need to start mongod before you are able to connect to it with a mongo shell. The documentation above outlines this further.
If you use homebrew the mongodb binaries will automatically be put on your path which means you won't need to cd into another directory like mongo/bin.
Good luck.
Probably you run the mongodb first time. Based on the documentation you must follow a few steps and then you are ready to go.
First, create main db directory:
sudo mkdir -p /data/db
Make sure that you have a read and write permission on that directory:
sudo chown `id -u` /data/db
And to listen to default port, run:
mongod
Finally keep in mind that after the run "mongod" command do not close console tab. Open a new tab (Cmd + T) and run other commands on the new window. To close the mongod session simply hit the Ctrl + C on the previous tab.
when everything mentioned above did not work. I did the following thing (in Mac)
cd ~
mkdir -p data/db
After creating directory in home(which will be definitely allowed) most imp command is below
mongod --dbpath ~/data/db &
So that it could take the path of db which was in home directory (as we are not able to create in / dir.
To avoid it running frequently, put the above command in .bash_profile file in home directory so that it will automatically run the above command whenever we try to use terminal in Mac
Note: Whenever we open the terminal it will execute the above command so that we can access the mongodb (I understand this should be taken place in background but it works fine)
We need to press enter/return key to get the regular command line terminal and continue doing our work
These steps worked for me well on Mac, you can give a shot, make sure you install brew first and put these lines in terminal line by line:
brew update
brew install mongodb
brew install mongodb --with-openssl
brew install mongodb --devel
sudo mkdir -p /data/db
sudo chown -R [your username] /data/db
(Replace with your username with what you can get by typing whoami in the terminal)
mongod
Run you app, for example localhost:8000
Upon restarting my Mac I got the dreaded Postgres error:
psql: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
The reason this happened is because my macbook froze completely due to an unrelated issue and I had to do a hard reboot using the power button. After rebooting I couldn't start Postgres because of this error.
WARNING: If you delete postmaster.pid without making sure there are really no postgres processes running you, could permanently corrupt your database. (PostgreSQL should delete it automatically if the postmaster has exited.).
SOLUTION: This fixed the issue--I deleted this file, and then everything worked!
/usr/local/var/postgres/postmaster.pid
--
and here is how I figured out why this needed to be deleted.
I used the following command to see if there were any PG processes running. for me there were none, I couldn't even start the PG server:
ps auxw | grep post
I searched for the file .s.PGSQL.5432 that was in the error message above. i used the following command:
sudo find / -name .s.PGSQL.5432 -ls
this didn't show anything after searching my whole computer so the file didn't exist, but obviously psql "wanted it to" or "thought it was there".
I took a look at my server logs and saw the following error:
cat /usr/local/var/postgres/server.log
at the end of the server log I see the following error:
FATAL: pre-existing shared memory block (key 5432001, ID 65538) is still in use
HINT: If you're sure there are no old server processes still running, remove the shared memory block or just delete the file "postmaster.pid".
Following the advice in the error message, I deleted the postmaster.pid file in the same directory as server.log. This resolved the issue and I was able to restart.
So, it seems that my macbook freezing and being hard-rebooted caused Postgres to think that it's processes were still running even after reboot. Deleting this file resolved. Lots of people have similar issues but most the answers had to do with file permissions, whereas in my case things were different.
None of the above worked for me. I had to reinstall Postgres the following way :
Uninstall postgresql with brew : brew uninstall postgresql
brew doctor (fix whatever is here)
brew cleanup
Remove all Postgres folders :
rm -r /usr/local/var/postgres
rm -r ~/Library/Application\ Support/Postgres
Reinstall postgresql with brew : brew install postgresql
Start server : brew services start postgresql
You should now have to create your databases... (createdb)
If you're on macOS and installed postgres via homebrew, try restarting it with
brew services restart postgresql
If you're on Ubuntu, you can restart it with either one of these commands
sudo service postgresql restart
sudo /etc/init.d/postgresql restart
Maybe this is unrelated but a similar error appears when you upgrade postgres to a major version using brew; using brew info postgresql found out this that helped:
To migrate existing data from a previous major version of PostgreSQL run:
brew postgresql-upgrade-database
Here is my way:
launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
rm /usr/local/var/postgres/postmaster.pid
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
The following commands helped me out. The issue was with the PostgreSQL data version. Once upgraded, it started working fine for me.
brew upgrade postgresql
brew postgresql-upgrade-database
brew services restart postgresql
if your postmaster.pid is gone and you can't restart or anything, do this:
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
as explained here initially
For me, the solution was simply restart my computer. I first tried restarting with Brew services and when that didn't work, restarting seemed like the next best option to try before looking into some of the more involved solutions. Everything worked as it should after.
Another class of reasons why this can happen is due to Postgres version updates.
You can confirm this is a problem by looking at the postgres logs:
tail -n 10000 /usr/local/var/log/postgres.log
and seeing entries like:
DETAIL: The data directory was initialized by PostgreSQL version 12, which is not compatible with this version 13.0.
In this case (assuming you are on Mac and using brew), just run:
brew postgresql-upgrade-database
(Oddly, it failed on run 1 and worked on run 2, so try it twice before giving up)
Hello world :)The best but strange way for me was to do next things.
1) Download postgres93.app or other version. Add this app into /Applications/ folder.
2) Add a row (command) into the file .bash_profile (which is in my home directory):
export PATH=/Applications/Postgres93.app/Contents/MacOS/bin/:$PATH
It's a PATH to psql from Postgres93.app. The row (command) runs every time console is started.
3) Launch Postgres93.app from /Applications/ folder. It starts a local server (port is "5432" and host is "localhost").
4) After all of this manipulations I was glad to run $ createuser -SRDP user_name and other commands and to see that it worked! Postgres93.app can be made to run every time your system starts.
5) Also if you wanna see your databases graphically you should install PG Commander.app. It's good way to see your postgres DB as pretty data-tables
Of, course, it's helpful only for local server. I will be glad if this instructions help others who has faced with this problem.
This problema has many sources, and thus many answers. I've experienced each one of them.
1) If you have a crash of some sort, removing the /usr/local/var/postgres/postmaster.pid file is probably required as postgres may not have handled it properly. But ensure that no process is running.
2) Craig Ringer has pointed out in other posts that Apple's bundling of postgreSQL leads to pg gem installation issues Setting the PATH environment variable is a solution.
3) Another solution, is to uninstall and reinstall the gem. A brew update may be necessary as well.
If you stumble upon this post, if you can pinpoint one of the sources, you'll save time...
I was facing a similar issue here I solved this issue as below.
Actually the postgres process is dead, to see the status of postgres run the following command
sudo /etc/init.d/postgres status
It will says the process is dead`just start the process
sudo /etc/init.d/postgres start
This happened to me after my Mac (High Sierra) froze and I had to manually restart it (press and hold the power button). All I had to do to fix it was do a clean restart.
I had the same issue.
Most of the times, the problem is the fact that there's a leftover file
/usr/local/var/postgres/postmaster.pid
which works for most people, but my case was different - I tried googling this issue for last 3 hours, uninstalled postresql on OSX through brew, purged the database, nothing worked.
Finally, I noticed that I had an issue with brew that whenever I tried to install anything, it popped:
Error: Permission denied # rb_sysopen - /private/tmp/github_api_....
or something like it at the end of an install.
I simply did sudo chmod -R 777 /private/tmp and it finally works!
I'm writing this down because this might be a solution for someone else
I faced the same problem for psql (PostgreSQL) 9.6.11.
what worked for me -
remove postmaster.pid -- rm /usr/local/var/postgresql#9.6/postmaster.pid
restart postgres -- brew services restart postgresql#9.6
If postmaster.pid doesn't exist or the above process doesn't work then run --
sudo chmod 700 /usr/local/var/postgresql#9.6
For those running into this issue on M1 macs, try deleting this file and then restarting the brew service:
rm /opt/homebrew/var/postgres/postmaster.pid
My problem ended up being that I was using Gas Mask (a hosts file manager for Mac), and I didn't have an entry for localhost in the hosts file I was using.
I added:
127.0.0.1 localhost
And that resolved my problem.
I'm not entirely sure why, but my Postgres installation got a little bit screwed and some files were deleted resulting in the error OP is showing.
Despite the fact that I am able to run commands like brew service retart postgres and see the proper messages, this error persisted.
I went through the postgres documentation and found that my file /usr/local/var/postgres was totally empty. So I ran the following:
initdb /usr/local/var/postgres
It seems some configurations took place with that command.
Then it asked me to run this:
postgres -D /usr/local/var/postgres
And that told me a postmaster.pid file already exists.
I just needed to know if brew would be able to pick up the configs I just ran, so I tested it out.
ls /usr/local/var/postgres
That showed me a postmaster.pid file. I then did brew services stop postgresql, and the postmaster.pid file disappeared. Then I did brew services start postgresql, and VIOLA, the file reappeared.
Then I went ahead and ran my app, which did in fact find the server, however my databases seem to be gone.
Although I know that they may not be gone at all - the new initialization I did may have created a new data_area, and the old one isn't being pointed to. I'd have to look at where that's at and point it back over or just create my databases again.
Hope this helps! Reading the postgres docs helped me a lot. I hate reading answers that are like "Paste this in it works!" because I don't know what the hell is happening and why.
I had the same issue and it was due to an incompatible version after upgrading from version 11 to 13.2
Checking error log at:
/usr/local/var/log/postgres.log
Showed me:
DETAIL: The data directory was initialized by PostgreSQL version 11, which is not compatible with this version 13.2.
To fix I ran:
brew postgresql-upgrade-database
And then started postresql with brew:
brew services start postgresql
The causes of this error are many so first locate your log file and check it for clues. It might be at /usr/local/var/log/postgres.log or /usr/local/var/postgres/server.log or possibly elsewhere. If you installed with Homebrew you can find the location in ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist.
I had this same concern when connecting trying to start a PostgreSQL database server on MacOS Monterey.
When I run the command below to restart the PostgreSQL database server:
brew services restart PostgreSQL
It restarts but when I try to check the status of the PostgreSQL database server using the command below, I get an error:
Name Status User File
mysql started promisepreston ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
nginx started promisepreston ~/Library/LaunchAgents/homebrew.mxcl.nginx.plist
postgresql error 256 root ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
Here's what worked for me:
First, I checked the log file for the PostgreSQL database server to what was the cause of the error using the command below:
cat /usr/local/var/log/postgres.log
OR
nano /usr/local/var/log/postgres.log
The logs showed the following errors:
"root" execution of the PostgreSQL server is not permitted.
The server must be started under an unprivileged user ID to prevent
possible system security compromise. See the documentation for
more information on how to properly start the server.
2022-01-25 19:01:06.051 WAT [29053] FATAL: database files are incompatible with server
2022-01-25 19:01:06.051 WAT [29053] DETAIL: The data directory was initialized by PostgreSQL version 13, which is not compatible with this version 14.1.
For the root execution error I had to run the following command to fix file permissions that when messed us when I ran brew services with the sudo command prefix. Replace your-username with your MacOS username (in my case my username was promisepreston:
# Stop postgresql
sudo brew services stop PostgreSQL
# In case service file is copied to ~/Library/LaunchAgents as well
brew services stop postgresql
# Fix permission of homebrew files
sudo chown -R your-username:admin $(brew --prefix)/*
For the database files are incompatible with server I had to simply upgrade the existing PostgreSQL data files which were created using version 13 to the latest PostgreSQL version on my computer which was 14.1 by running the following command below:
brew postgresql-upgrade-database
Afterwhich, I restarted the PostgreSQL database server:
brew services restart PostgreSQL
And then checked the status using the command below:
brew services list
Then I got the output below showing that everything was working fine:
Name Status User File
mysql started promisepreston ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
nginx started promisepreston ~/Library/LaunchAgents/homebrew.mxcl.nginx.plist
postgresql started promisepreston ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
References: Brew PostgreSQL Starts But Process Is Not Running
I had a similar error.
All of this is done from the command line (no sudo calls at all)
I verified I had PostgreSQL installed psql -V (note that's a capital "V")
I attempted to connect to the server: psql postgres
THIS IS WHERE I EXPERIENCED THE ERROR OF THIS STACK OVERFLOW QUESTION
After doing some research about possible fixes, I obviously had PostgreSQL installed, but I didn't have a default server in place.
What I had to do was create a Custom Data Directory
As far as I can tell, creating the custom data directory is the same as having a default server in place.
Since this is a new machine (MacBook Pro 2021 using apple m1 chip), I wanted to find the easiest solution possible, and I believe this Custom Data Directory is just that. The remaining steps to fix this issue are as follows:
From the home directory, I created an empty directory mkdir myData
From the home directory, Initialized a server: initdb myData (throws a bunch of files into the myData directory)
pg_ctl -D myData -l logfile start (starts the server)
psql postgres (connects to the server)
So, as someone fairly new to PostgreSQL and databases and SQL in general, couple notes:
It is possible to "quit" the connection to the server, using \q (while connected to the server, it's also possible to type "help")
It is also possible to "stop" the server, as well with pg_ctl -D myData stop
At this point I now am certain I have PostgreSQL installed, have a server I can start and stop, and have the ability to connect to/disconnect from, that server.
Go to /var/log/
and run cat postgres.log
Here you will find the reason for the failure of postgres.
If it is a smart shut down then probably your icu4c version (C++ library for Unicode) is not proper which is linked with postgres. So run the following commands.
brew upgrade
brew cleanup
This should work ;)
I've had to look up this post several times to solve this issue. There's another fix, which will also applies to similar issues with other running programs.
I just discovered you can use the following two commands.
$top
This will show all the currently running actions with their pid numbers. When you find postgres and the associated pid
$kill pid_number
I just got the same issue as I have put my machine(ubuntu) for update and got below error:
could not connect to server: No such file or directory Is the server
running locally and accepting connections on Unix domain socket
"/var/run/postgresql/.s.PGSQL.5432"?
After completing the updating process when I restart my system error gone. And its work like charm as before.. I guess this was happened as pg was updating and another process started.
SUPER NEWBIE ALERT: I'm just learning web development and the particular tutorial I was following mentioned I have to install Postgres but didn't actually mention I have to run it as well... Once I opened the Postgres application everything was fine and dandy.
#Jagdish Barabari's answer gave me the clue I needed to resolve this. Turns out there were two versions of postgresql installed while only one was running. Purging all postgresql files and reinstalling the latest version resolved this issue for me.
I removed /usr/lib from the LD_LIBRARY_PATH and it worked.
I was working in dockerfile postgres:alpine.
This answer worked for me: https://stackoverflow.com/a/45454567/15067545 on my ubuntu system.
Command: sudo service postgresql restart.
I'm trying to start my app from the command line using ios-sim but this is what I get:
Started by user User
Building in workspace /Users/Shared/Jenkins/Home/jobs/UI Testing/workspace
[workspace] $ /bin/sh -xe /var/folders/h4/ws64t3bx2nnds4pg3345xrr000009c/T/hudson6341279754557259451.sh
+ /Users/myUser/Desktop/ios-sim launch /Users/Shared/Jenkins/Home/jobs/Project_Monkey_Build/workspace/build/Debug-iphonesimulator/ProjectMonkey.app
[DEBUG] Could not start simulator session: Error Domain=DTiPhoneSimulatorErrorDomain Code=5
"Operation failed with underlying error 4294956486." UserInfo=0x1001b1760
{NSLocalizedDescription=Operation failed with underlying error 4294956486.,
NSUnderlyingError=0x1001a3390 "The operation couldn’t be completed. (OSStatus error -10810.)"}
It looks like a permission problem as I can run the same command from terminal and it works fine. I've also tried to give full 777 permission to ios-sim and the MonkeyTalk directory,but still nothing.
Any idea?
It might be related to the Jenkins process not having a "display". Try running Jenkins as a user logged in to the desktop, then run the ios-sim again.
Unload Jenkins from launchd:
sudo launchctl unload /Library/LaunchDaemons/org.jenkins-ci.plist
Then run Jenkins from a terminal:
sudo su jenkins -c "JENKINS_HOME=/Users/Shared/Jenkins/Home /Library/Application\ Support/Jenkins/jenkins-runner.sh"
If this works, you can make Jenkins always run as a logged in user by moving the launchd job config file from /Library/LaunchDaemons/org.jenkins-ci.plist to ~/Library/LaunchAgents/org.jenkins-ci.plist
I know this post was from a while ago, and not sure if anyone is checking it, but I also ran into this issue recently and it turned out that there was a duplicate app already in the iphone simulator creating an issue and not letting the new app run.
I reset the simulator and it then worked. I then added the applescript to reset the simulator each time before running ios-sim. this script can be found here...
How can I reset the iOS Simulator from the command line?
Scroll down the answer that has 13 up votes next to it, not the one that was checked marked.
Hope this helps someone in the future..
It looks like the only workaround it's to run the command as super user:
sudo /Users/myUser/Desktop/ios-sim launch /Users/Shared/Jenkins/Home/jobs/Project_Monkey_Build/workspace/build/Debug-iphonesimulator/ProjectMonkey.app
I was also facing the same problem and found that jenkins user is not correctly set up to run test case on simulator. Follow instruction given on below website:
http://pivotallabs.com/ios-ci-jenkins/
see the section "SETTING UP THE JENKINS USER".
hope it will work for you as well.