I'm having difficulty with postgresql after installing via homebrew. I'm on Mac OS X 10.9.5 (just updated today and did restart).
Note I didn't deliberately change anything from a default postgresql installation via homebrew
PROBLEM
- I can't uninstall postgresql
- I can't log in to view tables / start the "command line" of postgres
- createdb returns an error about pg_filenode.map "no such file or directory"
- initdb returns error wondering where data_directory is (I don't know)
ANY OF THESE WOULD BE SUCCESS
- Log in to psql (so I can create a database or table like I can do in mysql, browse existing tables)
- Uninstall postgres altogether (so I can re-try with postgresql.app)
I've spent almost 10 hours troubleshooting this and come up short.
I've looked at loads of answers already (including SO questions 24132418 and 14510237) though I can't include all links due to not having reputation points yet
Any pointers would be really appreciated!
Below seems lengthy because I have pasted all the logs, please let me know if I have missed some important info though
Thanks, -Mark
DETAILS
I have been working my way through an introduction to Heroku, and they said installing postgresql was a requirment, so I did that using homebrew
brew install postgresql
I didn't check it, I proceeded building my app, but the next day I run the webapp locally and get error,
Request URL: http://localhost:5000/admin/
Django Version: 1.6.5
Exception Type: OperationalError
Exception Value:
FATAL: could not open relation mapping file "global/pg_filenode.map": No such file or directory
Exception Location: /Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/psycopg2/__init__.py in connect, line 164
So I want to investigate. Now I've never used postgresql before, so I want to "get to the command line" for postgresql
Please note, I'm a complete newbie and have never used postgresql before.
In mysql I know this would be
mysql -u root -p
(and then enter password)
I'm unable to do the equivalent in postgresql
moriartymacbookair13:~ macuser$ postgres
postgres does not know where to find the server configuration file.
You must specify the --config-file or -D invocation option or set the PGDATA environment variable.
moriartymacbookair13:~ macuser$ postgres -V
postgres (PostgreSQL) 9.3.5
The more detailed heroku docs recommend installing postgresql using postgres.app I hadn't done this, I used homebrew, so I tried uninstalling postgresql
moriartymacbookair13:~ macuser$ brew uninstall postgres
Uninstalling /usr/local/Cellar/postgresql/9.3.5_1...
Error: Permission denied - /usr/local/bin/clusterdb
That didn't work, so back to where I was. To figure out what path to specify, I ran
brew info postgresql
If you scroll down to the bottom of this, you can see it advises me of the path
moriartymacbookair13:~ macuser$ brew info postgres
postgresql: stable 9.3.5 (bottled), devel 9.4beta2
http://www.postgresql.org/
Conflicts with: postgres-xc
/usr/local/Cellar/postgresql/9.3.5_1 (2927 files, 38M) *
Poured from bottle
From: https://github.com/Homebrew/homebrew/blob/master/Library/Formula/postgresql.rb
==> Dependencies
Required: openssl ✔, readline ✔
Recommended: ossp-uuid ✔
==> Options
--32-bit
Build 32-bit only
--enable-dtrace
Build with DTrace support
--no-perl
Build without Perl support
--no-tcl
Build without Tcl support
--with-python
Build with python support
--without-ossp-uuid
Build without ossp-uuid support
--devel
install development version 9.4beta2
==> Caveats
If builds of PostgreSQL 9 are failing and you have version 8.x installed,
you may need to remove the previous version first. See:
https://github.com/Homebrew/homebrew/issues/issue/2510
To migrate existing data from a previous major version (pre-9.3) of PostgreSQL, see:
http://www.postgresql.org/docs/9.3/static/upgrading.html
When installing the postgres gem, including ARCHFLAGS is recommended:
ARCHFLAGS="-arch x86_64" gem install pg
To install gems without sudo, see the Homebrew wiki.
To reload postgresql after an upgrade:
launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
Or, if you don't want/need launchctl, you can just run:
postgres -D /usr/local/var/postgres
Note: I have ignored the comment at the top:
Conflicts with: postgres-xc
/usr/local/Cellar/postgresql/9.3.5_1 (2927 files, 38M) *
Anyway there we have it, toward the end of that large output it confirms the path for me is /usr/local/var/postgres, so I tried -D
moriartymacbookair13:~ macuser$ postgres -D /usr/local/postgres
postgres cannot access the server configuration file "/usr/local/postgres/postgresql.conf": No such file or directory
So this time I specified the config file:
moriartymacbookair13:~ macuser$ postgres --config-file=/usr/local/var/postgres/postgresql.conf
postgres does not know where to find the database system data.
This can be specified as "data_directory" in "/usr/local/var/postgres/postgresql.conf", or by the -D invocation option, or by the PGDATA environment variable.
(Out of desperation, I even tried deleting it and going again)
moriartymacbookair13:~ macuser$ initdb /usr/local/var/postgres
The files belonging to this database system will be owned by user "macuser".
This user must also own the server process.
The database cluster will be initialized with locale "en_GB.UTF-8".
The default database encoding has accordingly been set to "UTF8".
The default text search configuration will be set to "english".
Data page checksums are disabled.
initdb: directory "/usr/local/var/postgres" exists but is not empty
If you want to create a new database system, either remove or empty
the directory "/usr/local/var/postgres" or run initdb
with an argument other than "/usr/local/var/postgres".
moriartymacbookair13:~ macuser$ rm -rf /usr/local/var/postgres
moriartymacbookair13:~ macuser$ initdb /usr/local/var/postgres -E utf8
The files belonging to this database system will be owned by user "macuser".
This user must also own the server process.
The database cluster will be initialized with locale "en_GB.UTF-8".
The default text search configuration will be set to "english".
Data page checksums are disabled.
creating directory /usr/local/var/postgres ... ok
creating subdirectories ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 128MB
creating configuration files ... ok
creating template1 database in /usr/local/var/postgres/base/1 ... ok
initializing pg_authid ... ok
initializing dependencies ... ok
creating system views ... ok
loading system objects' descriptions ... ok
creating collations ... ok
creating conversions ... ok
creating dictionaries ... ok
setting privileges on built-in objects ... ok
creating information schema ... ok
loading PL/pgSQL server-side language ... ok
vacuuming database template1 ... ok
copying template1 to template0 ... ok
copying template1 to postgres ... ok
syncing data to disk ... ok
WARNING: enabling "trust" authentication for local connections
You can change this by editing pg_hba.conf or using the option -A, or
--auth-local and --auth-host, the next time you run initdb.
Success. You can now start the database server using:
postgres -D /usr/local/var/postgres
or
pg_ctl -D /usr/local/var/postgres -l logfile start
moriartymacbookair13:~ macuser$ postgres -D /usr/local/postgres
postgres cannot access the server configuration file "/usr/local/postgres/postgresql.conf": No such file or directory
moriartymacbookair13:~ macuser$ postgres --config-file=/usr/local/var/postgres/postgresql.conf
postgres does not know where to find the database system data.
This can be specified as "data_directory" in "/usr/local/var/postgres/postgresql.conf", or by the -D invocation option, or by the PGDATA environment variable.
So I took a look at that file:
In that in the conf file itself, the data variable is not defined
moriartymacbookair13:~ macuser$ ls /usr/local/var/postgres/
PG_VERSION pg_ident.conf pg_stat/ pg_xlog/
base/ pg_multixact/ pg_stat_tmp/ postgresql.conf
global/ pg_notify/ pg_subtrans/
pg_clog/ pg_serial/ pg_tblspc/
pg_hba.conf pg_snapshots/ pg_twophase/
moriartymacbookair13:~ macuser$ vim /usr/local/var/postgres/postgresql.conf
shows that the value is commented out (see line 41... almost the whole file is commented out)
35 # FILE LOCATIONS
36 #----------------------------------------------------------------------------- -
37
38 # The default values of these variables are driven from the -D command-line
39 # option or PGDATA environment variable, represented here as ConfigDir.
40
41 #data_directory = 'ConfigDir' # use data in another directory
42 # (change requires restart)
43 #hba_file = 'ConfigDir/pg_hba.conf' # host-based authentication file
44 # (change requires restart)
45 #ident_file = 'ConfigDir/pg_ident.conf' # ident configuration file
46 # (change requires restart)
47
48 # If external_pid_file is not explicitly set, no extra PID file is written.
49 #external_pid_file = '' # write an extra PID file
50 # (change requires restart)
HELP: DOES ANYONE KNOW WHAT I SHOULD SPECIFY THAT 'ConfigDir' AS for where data_directory is?
In case helpful here are contents of the Cellar folder
moriartymacbookair13:~ macuser$ ls /usr/local/Cellar/postgresql/9.3.5_1/
COPYRIGHT homebrew.mxcl.postgresql.plist
HISTORY include/
INSTALL_RECEIPT.json lib/
README share/
bin/
(I don't understand why I have some postgres files in Cellar and some in usr/local/var)
I tried some other things too:
moriartymacbookair13:~ macuser$ sudo -u postgres pg_ctl -D /usr/local/var/postgres -w start
sudo: unknown user: postgres
That's based on other SO questions
moriartymacbookair13:~ macuser$ ls -ld /usr/local/var/postgres/
drwx------ 19 macuser admin 646B 20 Sep 19:46 /usr/local/var/postgres//
moriartymacbookair13:~ macuser$ chown -R postgres /usr/local/var/postgres
chown: postgres: illegal user name
moriartymacbookair13:~ macuser$ brew uninstall postgresql
Uninstalling /usr/local/Cellar/postgresql/9.3.5_1...
Error: Permission denied - /usr/local/bin/clusterdb
moriartymacbookair13:~ macuser$ brew uninstall postgres
Uninstalling /usr/local/Cellar/postgresql/9.3.5_1...
Error: Permission denied - /usr/local/bin/clusterdb
moriartymacbookair13:~ macuser$
As I say, I installed Postgresql only to try out heroku, so here is the error Chrome gives me from the code when I run foreman start locally.
(Note "the django app" is just a demo app https://devcenter.heroku.com/articles/getting-started-with-python#prepare-the-app)
It works for localhost:5000 home, but when I add /admin (the page that would interact with a database), I get the following error:
OperationalError at /admin/
FATAL: could not open relation mapping file "global/pg_filenode.map": No such file or directory
Request Method: GET
Request URL: http://localhost:5000/admin/
Django Version: 1.6.5
Exception Location: /Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/psycopg2/__init__.py in connect, line 164
Python Executable: /Users/macuser/Dropbox/code/heroku/awe01/bin/python
Full error traceback log here: http://dpaste.com/3CREGVQ
Note this answer https://stackoverflow.com/a/5053003/870121
recommends createdb not just initdb
And the above error is the same as if I run createdb:
moriartymacbookair13:~ macuser$ createdb /usr/local/var/postgres/
createdb: could not connect to database template1: FATAL: could not open relation mapping file "global/pg_filenode.map": No such file or directory
Steps advised here Postgres is failing with 'could not open relation mapping file "global/pg_filenode.map" ' are
Remove and re-add the launch agent
Kill the processes for <postgresql version number>
Initialize the db initdb /usr/local/var/postgres
Restart my computer
If this is relevant someone please tell me how to "Remove and re-add the launch agent"? Is is this? (based on the output of the brew info postgresql from earlier)
moriartymacbookair13:~ macuser$ launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
moriartymacbookair13:~ macuser$ killall postgresql
No matching processes belonging to you were found
moriartymacbookair13:~ macuser$ killall postgres
No matching processes belonging to you were found
moriartymacbookair13:~ macuser$ launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
FINALLY In case it inspires anyone,
moriartymacbookair13:~ macuser$ brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!
Warning: The /usr/local directory is not writable.
Even if this directory was writable when you installed Homebrew, other
software may change permissions on this directory. Some versions of the
"InstantOn" component of Airfoil are known to do this.
You should probably change the ownership and permissions of /usr/local
back to your user account.
Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.
Unexpected dylibs:
/usr/local/lib/libguide.dylib
/usr/local/lib/libKLF_OGL.dylib
Warning: Some directories in your path end in a slash.
Directories in your path should not end in a slash. This can break other
doctor checks. The following directories should be edited:
$/Users/macuser/Dropbox/code/aws/ElasticBeanstalkCommandLineTools/AWS-ElasticBeanstalk-CLI-2.6.3/AWSDevTools.sh/macosx/python2.7/ /Users/macuser/Dropbox/code/aws/ElasticBeanstalkCommandLineTools/AWS-ElasticBeanstalk-CLI-2.6.3/AWSDevTools/eb/macosx/python2.7/
Warning: /usr/bin occurs before /usr/local/bin
This means that system-provided programs will be used instead of those
provided by Homebrew. The following tools exist at both paths:
git
git-cvsserver
git-receive-pack
git-shell
git-upload-archive
git-upload-pack
Consider setting your PATH so that /usr/local/bin
occurs before /usr/bin. Here is a one-liner:
echo export PATH='/usr/local/bin:$PATH' >> ~/.bash_profile
moriartymacbookair13:~ macuser$
Earlier today I had this error createdb: could not connect to database postgres: 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"?
as per http://www.postgresql.org/docs/9.3/interactive/tutorial-createdb.html
but that error seems to have gone away now
Any advice on un or re-installing postgresql, resolving the unknown user: postgres error, setting location of #data_directory = 'ConfigDir' or any other tips... I would really appreciate it. It's been a full day lost to this now so I would appreciate anything at all.
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