RabbitMmq on Mac can't start - macos

I've installed rabbitmq on Mac OS X via homebrew, just a simple command:
$ brew install rabbitmq
but, when I start the server via rabbitmq-server, it occurs:
ERROR: distribution port 25672 in use on localhost (by non-Erlang process?)
I want to find some process that uses port 25672, but I can't find that really strange
anyone knows the reason, thx a lot :)

Use sudo lsof -i :25672 to find the process. sudo may or may not be needed depending on user permissions.

Related

Forticlient VPN from mac CLI

I'd like to make a script to connect to different SSL VPN's from MAC OS X. I cannot find any info as to how to connect VPN's via command line? Can anyone please help me with this?
Thanks!
There is actually a way. First, install openfortivpn via brew:
brew install openfortivpn
Then, connect as such:
sudo openfortivpn <server_ip>:<server_port> -u <username> -p <password>
After some research I have come to conclusion there is no FortiClient CLI for MAC OS. In other words there is no commands for FortiClient in terminal. Still you can use terminal for Backup/Restore/Export for FortiClient VPN configuration. You can use this link for reference:
FortiClient XML Reference Guide

Lost control over my MariaDB installation

I installed MariaDB on my mac with Macports but lost control over it, mysteriously. I can list the processes and I can login using a user with no privileges. But if I try to stop the database using the usual macports command (sudo port unload mariadb-10.1-server) I get the following error:
/opt/local/etc/LaunchDaemons/org.macports.mariadb-10.1-server/org.macports.mariadb-10.1-server.plist: Could not find specified service
I've tried installing and uninstalling but this doesn't change. How can I do a fresh install of MariaDB on my mac?
Perhaps you inadvertently installed another version of mariadb-server? You can check with:
port echo active |grep mariadb-
It is also possible that the server was started without using launchd and so can't be stopped with the command you were using. You can check with:
sudo launchctl list |grep macports
'org.macports.mariadb-10.1-server' will be in the list if it is running under launchd.
I've deleted the directory where this installation was and reinstalled from Macports. That solved the problem.

Service command on Mac OS X

I used to be able to execute on the Mac OS X (10.10.5) command line:
$ sudo service tomcat7 status
However, I must have accidentally deleted the package associated with service command and I am unable to find the name of the service package to reinstall. Any pointers would be greatly helpful.
I can't find service in either /sbin/ or /bin/ or /usr/sbin/
I think you need launchctl.
sudo launchctl load /Library/LaunchDaemons/org.apache.tomcat.plist
See https://www.joel.lopes-da-silva.com/2008/05/13/installing-tomcat-on-mac-os-x/
If you want to start mysql on OSX which is installed through brew, please use this command:
brew services start mysql#5.6
Update the mysql version based on the system mysql version.

Postgres.app Could not start on port 5432

I'm using http://postgresapp.com. In the menubar it gives the error " Could not start on port 5432." Similarly if I try to start the server from the terminal, I get:
psql: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
I also ran pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
and got the output server starting but still get the same errors when connecting to psql.
If you are running your server on a macOS machine and installed Postgres through Homebrew, you can stop the current instance like this:
brew services stop postgresql
Then click the Elephant in the native menu-bar at the top of the screen and it should successfully startup.
You can stop the process by finding the PID with
lsof -i :5432
and then killing it with
kill -9 <PID>
If you've installed Postgres via another method (for example, from www.postgresql.org) and it's starting automatically at startup, you can prevent that Postgres from starting via the following:
sudo launchctl unload /Library/LaunchDaemons/com.edb.launchd.postgresql-X.X.plist
sudo rm -f /Library/LaunchDaemons/com.edb.launchd.postgresql-X.X.plist
TIP: use tab to autocomplete after the com.edb.launchd part to figure out what version is loading.
Restart Postgres.app and you should be good to go.
(from http://forums.enterprisedb.com/posts/list/1831.page;jsessionid=70621DC48C99EDE663A6A594B05F1A02#6782)
I was just having this exact issue. When I ran which psql it was pointing at the Postgres client tools installed with Lion:
/usr/bin/psql
Using a hint from Frank Wiles I ran ps auxw | grep post to confirm that postgres was running and that it was running on the right port, that also showed me the postgres.app path:
/Applications/Postgres.app/Contents/MacOS/bin/postgres.
So I edited by .bash_profile to export that directory. On first effort I added it to the end of the path. When I ran echo $PATH I could see that usr/bin was the first thing in the path, and which psql still gave the /usr/bin path. At that point a friend guided me in the right direction:
export PATH="/Applications/Postgres.app/Contents/MacOS/bin:${PATH}"
Start a new terminal window, then run which psql -- it should point to the postgres.app location and psql should fire up the postgres shell. Works fine now.
I have tried just about every solution to this problem that is out there. For me it always happens when my MacBook's battery dies, even if the computer is already sleeping. I was poking around in ~/Library/Application\ Support/Postgres/var-9.4 and I discovered another postmaster.pid file that I had not seen before. I deleted it, and now everything is back up and running! I am running the Postgres.app version, not the brew version.
Steps I took:
Make sure postgres.app is not running.
Run rm ~/Library/Application\ Support/Postgres/var-9.$X/postmaster.pid
If you don't have a var-9.$X directory, just run rm ~/Library/Application\ Support/Postgres/postmaster.pid
Restart postgres.app
Get back to developing cool stuff.
This command is a one-liner that instantly kills all PostgresSQL processes.
sudo kill -kill $(sudo lsof -t -i :5432)
This fixed all my problems on Mac OSX Mojave 10.14.1.
You my have another instance of postgres running, that is the only application interested in this port. You should use netstat and ps to determine this. Then stop the instance and uninstall it, you mayhave installed enterpiseDb for example, that is what I did.
I generally face this issue on my mac, and this fixes it for me always
rm /usr/local/var/postgres/postmaster.pid
brew services restart postgresql
Hope this is helpful
I had a similar problem where I could not connect to the Postgres.app even though the app itself said that it is running on port 5432.
I am not sure why, but even when I quit the app and checked that no postgres processes was running with ps -a. these files existed:
/tmp/.s.PGSQL.5432
and
/tmp/.s.PGSQL.5432.lock
My solution was to delete these files and then start the postgres.app again.
This is what worked for me:
$ sudo pkill -u postgres
Props to this resource:
https://github.com/PostgresApp/PostgresApp/issues/197#issuecomment-474534056
It can also happen that the PID is taken.
This ocurred to me when the Computer suffered an unexpected reboot.
If so, you must go to:
˜/Library/Application Support/Postgres/var-9.4
You can check that path in Postgres.app Preferences dialog.
And then, just remove the pid file
sudo rm postmaster.pid
And the server starts up right away.
When trying to open the Postgres app was getting that same error regarding post 5432 (on Mac OSX 10.10.5)
I did:
$ lsof -i | grep LISTEN
Saw which PID was running postgres at that port, did:
$ killall {pid} and then $ brew uninstall postgres
After that, restarted my Mac, and ran:
$ lsof -i | grep LISTEN again just to make sure. Saw no postgres running anywhere and was able to open the Postgres app without getting that warning.
Then I reinstalled postgres with $ brew install postgres
ANOTHER OPTION:
(I also tried this one time when the above approach didn't work and I could not kill any of the PID)
$ ps auxw | grep post
Saw a slew postgres processes, which I then sudo kill <PID>
Everything working fine now.
For those using mac, this code worked for me like charm.
sudo pkill -u postgres
At a guess, something else had taken port 5432 so the app chose to run on 5433 instead.
Why not just connect to Pg on port 5433, if that's where it's running? You have a /tmp/.s.PGSQL.5432 socket file, so you can connect with psql -p 5433 for UNIX domain socket connections. It'll also be listening on the same port with TCP/IP, so you can use psql -h localhost -p 5433 for TCP/IP and have your apps connect to port 5433 instead of 5432.
Change your .psqlrc to set the new port as default and you can forget it isn't on the default port.
I had similar problem when trying to use postgresql with rails. Updating my Gemfile to use new version of gem pg solve this problem for me. (gem pg version 0.16.0 works). In the Gemfile use:
gem 'pg', '0.16.0'
then run the following to update the gem
bundle install --without production
bundle update
bundle install
Mine failed to start up suddenly, and when I checked Console.app I saw:
com.heroku.postgres-service:
FATAL: could not create shared memory segment: Cannot allocate memory
DETAIL: Failed system call was shmget(key=5432001, size=3874816, 03600).
HINT: This error usually means that PostgreSQL's request for a shared memory segment exceeded available memory or swap space, or exceeded your kernel's SHMALL parameter. You can either reduce the request size or reconfigure the kernel with larger SHMALL. To reduce the request size (currently 3874816 bytes), reduce PostgreSQL's shared memory usage, perhaps by reducing shared_buffers or max_connections.
The PostgreSQL documentation contains more information about shared memory configuration.
It turns out Postgres wouldn't start up because I had Wireshark (and X11) running. It worked fine after I quit Wireshark.
Good luck!
I resolved this problem by
Identifying what was running on port 5432 by using "netstat" in the CL, which was postgreSQL not Postgres
I located the directory that contained postgreSQL, which was root/Library/PostgreSQL
I ensured an instants of the application wasn't running via Activity Monitor
Then I deleted the folder and rebooted! Everything was fine!
Somehow I totally forgot that this socket file will be hidden because of the dot. Make sure you use ls -A /tmp/.s.PGSQL.5432 if you are checking to see if the socket is actually there.
You most likely has a PostgreSQL installed, deleted it and installed it again. PostgreSQL typically used port 5432 but if not available, increases to the next available one, in this case 5433. So, you probably chose this port on your second install.
I think you should check file:
/etc/services
and adjust rows below for your expected port number:
postgresql 5432/udp # PostgreSQL Database
postgresql 5432/tcp # PostgreSQL Database
After this you should restart your computer (simplest way).
I had the same issues:
psql: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
In my case it was a corrupt host file on my mac. I was missing:
127.0.0.1 localhost
A quick easy way to check is to open terminal and type:
ping localhost
or:
scutil -r localhost
More info here
Hope it helps.
Netstat, ps aux, etc ... none showed 5432 in use. Checked /Library. Found PG9.6 old install still there. Did rm -rf and bang. Version 11 works fine.
I was losing my mind over this problem! i kept running
lsof -i | grep 5432
and nothing was showing up!
finally i ran it using sudo and a potgres client showed up.
so if anyone else has tried the lsof and went nowhere, try it with sudo.
sudo lsof -i | grep 5432
and then
sudo kill <the_pid_from_postgresql_found_from_lsof>
The same problem just happened to me. I had Postgres.app 9.2.4.1 running since a while. When I updated Mac OS X to 10.8.5, after the mandatory reboot it was not working anymore. I tried several things, including updating to 9.2.4.3 and neither after another reboot it was working.
I had to open the file /Users/$USER/Library/Application Support/Postgres/var/postgresql.conf and to:
uncomment line unix_socket_permissions = 0777
uncomment and adapt line unix_socket_directory = '/tmp'
After a restart, Postgres.app was running like a charm.
A file named "postmaster.pid" (in my $PGDATA directory) were preventing postgresql to start. It was a zombie file, placed there 10 days ago and when I brutally shut down the computer (pulling the plug, literally), no clean up process had the opportunity to remove that file.
beside all the helpful answers, you might also want to take a look at official page instructions :
postgressapp.com/documentation/remove.html
I had this same issue and mine was caused by some configuration issues I was having. Clearing the user configurations and reinstalling postgres in brew worked for me!
brew uninstall postgresql
rm -rf /usr/local/var/postgres
I ran the following:
psql --version then brew services stop postgresql#<VERSION>
finally, start your Postgres app on your Mac.

I would like to find something like gkrellm for the Mac

I have a linux dev server I watch, and lately its chugging at some points so I'd like to keep a better eye on it. I used to use Gkrellm, but its been a pain to try get Gkrellm to build on my Mac.
Besides servering X remotely (which would not be optimal), I guess i'm looking for alternatives to Gkrellm.
I would like a program that will let me watch the I/O CPU, Memory, processes, etc of a remote server running Linux. I am on a Mac.
If you're looking for something simple, and almost certainly already installed on the Linux box, you could SSH into the Linux machine and use tools like top, vmstat, and lsof to see what it's up to.
If you still want to test Gkrellm on Mac, you can follow this procedure
# sudo port install gkrellm
If you have this error :
Error: Target org.macports.activate returned: Registry error: xorg-xproto 7.0.16_0 not registered as installed.
[...]
Error: Status 1 encountered during processing.
Do this
# sudo port clean xorg-xproto
# sudo port install xorg-xproto
And continue install
# sudo port install gkrellm
Now if you have this error :
Error: Target org.macports.configure returned: configure failure: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_gnome_gtk-doc/work/gtk-doc-1.11" && ./configure --prefix=/opt/local --with-xml-catalog=/opt/local/etc/xml/catalog " returned error 1
[...]
Error: Status 1 encountered during processing.
Do this
# sudo port clean gtk-doc
# sudo port install gtk-doc
And last
# sudo port install gkrellm
To start gkrellm
# gkrellm
You could use Growl for this purpose. It's possible to send Growl messages from a unix machine by using netgrowl.py, which masquerades as the growlnotify program, but all written in python.
You could then have a process running on the server that monitors the other bits, and posts notifications when limits are exceeded, or whatever.
It would be a hand-coded solution, but we are on Stack Overflow, so programming-related stuff is the go :)
(Oh, and the netgrowl.py page has a few links to similar projects in other languages, if that's your thing, too).
You are propably looking for a more rigid monitoring tool like zabbix. https://zabbix.org

Resources