背景
- 問題の発端は、Brew upgradeして再起動したせいか、Postgresが動いていない。
psql postgres
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"?
- 起動しようとした。
pg_ctl -D /usr/local/var/postgres -w start
pg_ctl: another server might be running; trying to start server anyway
waiting for server to start....FATAL: database files are incompatible with server
DETAIL: The data directory was initialized by PostgreSQL version 9.5, which is not compatible with this version 9.6.3.
stopped waiting
pg_ctl: could not start server
Examine the log output.
ちなみに今回は、9.5.4-> 9.6.3へのUpgrade。以下の解決策ないのバージョン部分は、自分のバージョンに合わせて変更が必要。
pg_config --version
PostgreSQL 9.6.3
psql -V
psql (PostgreSQL) 9.6.3
解決
基本https://gist.github.com/joho/3735740 これに従ってやってみる
解決策まとめ
1. launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
2. mv /usr/local/var/postgres /usr/local/var/postgres91
3. brew update
4. brew upgrade postgresql
5. initdb /usr/local/var/postgres -E utf8
6. pg_upgrade -b /usr/local/Cellar/postgresql/9.5.4/bin -B /usr/local/Cellar/postgresql/9.6.3/bin -d /usr/local/var/postgres95 -D /usr/local/var/postgres
(6-1.もしも失敗したら rm /usr/local/var/postgres/postmaster.pidする)
7. cp cp /usr/local/Cellar/postgresql/9.6.3/homebrew.mxcl.postgresql.plist ~/Library/LaunchAgents/
8. pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
詳細
1
launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
2
mv /usr/local/var/postgres /usr/local/var/postgres95
3, 4
brew update
brew upgrade postgresql # ここではpostgresql 9.6.3 already installedとなって変更なし
5
initdb /usr/local/var/postgres -E utf8
結果：失敗
The files belonging to this database system will be owned by user "nakamasato".
This user must also own the server process.
The database cluster will be initialized with locales
COLLATE: ja_JP.UTF-8
CTYPE: UTF-8
MESSAGES: ja_JP.UTF-8
MONETARY: ja_JP.UTF-8
NUMERIC: ja_JP.UTF-8
TIME: ja_JP.UTF-8
initdb: could not find suitable text search configuration for locale "UTF-8"
The default text search configuration will be set to "simple".
Data page checksums are disabled.
fixing permissions on existing directory /usr/local/var/postgres ... initdb: could not change permissions of directory "/usr/local/var/postgres": Operation not permitted
原因
Onwerが自分でなくRootだったので変更
解決策
sudo chown nakamasato /usr/local/var/postgres
再度Initを試みる
± initdb /usr/local/var/postgres -E utf8
The files belonging to this database system will be owned by user "nakamasato".
This user must also own the server process.
The database cluster will be initialized with locales
COLLATE: ja_JP.UTF-8
CTYPE: UTF-8
MESSAGES: ja_JP.UTF-8
MONETARY: ja_JP.UTF-8
NUMERIC: ja_JP.UTF-8
TIME: ja_JP.UTF-8
initdb: could not find suitable text search configuration for locale "UTF-8"
The default text search configuration will be set to "simple".
Data page checksums are disabled.
fixing permissions on existing directory /usr/local/var/postgres ... ok
creating subdirectories ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 128MB
selecting dynamic shared memory implementation ... posix
creating configuration files ... ok
running bootstrap script ... ok
performing post-bootstrap initialization ... 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:
pg_ctl -D /usr/local/var/postgres -l logfile start
6
pg_upgrade -b /usr/local/Cellar/postgresql/9.5.4/bin -B /usr/local/Cellar/postgresql/9.6.3/bin -d /usr/local/var/postgres95 -D /usr/local/var/postgres
結果: 失敗
*failure*
Consult the last few lines of "pg_upgrade_server.log" for
the probable cause of the failure.
There seems to be a postmaster servicing the new cluster.
Please shutdown that postmaster and try again.
Failure, exiting
対応策
ぐぐってみると、stop してから、postmaster.pidを削除するとあるので試してみる
pg_ctl -D /usr/local/var/postgres/ stop
waiting for server to shut down...........failed
ストップできない、ぐぐってみると、postmaster.pidを消せば良いようなので、以下を実行
rm /usr/local/var/postgres/postmaster.pid
再度pg_upgradeする
pg_upgrade -b /usr/local/Cellar/postgresql/9.5.4/bin -B /usr/local/Cellar/postgresql/9.6.3/bin -d /usr/local/var/postgres95 -D /usr/local/var/postgres
Performing Consistency Checks
-----------------------------
Checking cluster versions ok
Checking database user is the install user ok
Checking database connection settings ok
Checking for prepared transactions ok
Checking for reg* system OID user data types ok
Checking for contrib/isn with bigint-passing mismatch ok
Checking for roles starting with 'pg_' ok
Creating dump of global objects ok
Creating dump of database schemas
ok
Checking for presence of required libraries ok
Checking database user is the install user ok
Checking for prepared transactions ok
If pg_upgrade fails after this point, you must re-initdb the
new cluster before continuing.
Performing Upgrade
------------------
Analyzing all rows in the new cluster ok
Freezing all rows on the new cluster ok
Deleting files from new pg_clog ok
Copying old pg_clog to new server ok
Setting next transaction ID and epoch for new cluster ok
Deleting files from new pg_multixact/offsets ok
Copying old pg_multixact/offsets to new server ok
Deleting files from new pg_multixact/members ok
Copying old pg_multixact/members to new server ok
Setting next multixact ID and offset for new cluster ok
Resetting WAL archives ok
Setting frozenxid and minmxid counters in new cluster ok
Restoring global objects in the new cluster ok
Restoring database schemas in the new cluster
ok
Copying user relation files
ok
Setting next OID for new cluster ok
Sync data directory to disk ok
Creating script to analyze new cluster ok
Creating script to delete old cluster ok
Upgrade Complete
----------------
Optimizer statistics are not transferred by pg_upgrade so,
once you start the new server, consider running:
./analyze_new_cluster.sh
Running this script will delete the old cluster's data files:
./delete_old_cluster.sh
完成！
7
cp /usr/local/Cellar/postgresql/9.6.3/homebrew.mxcl.postgresql.plist ~/Library/LaunchAgents/
8
既にPostgresが動いているので必要なかった
確認
psql postgres
\list
これで前のバージョンにあったデータが全て存在するのを確認。