Error
Error Code:
58000
PostgreSQL Error 58000: Underlying OS/System Issue
Description
Error 58000 indicates a problem originating outside of PostgreSQL itself, within the underlying operating system or its environment. This typically means PostgreSQL encountered an issue with system resources, permissions, or external services while trying to perform an operation.
Error Message
system error
Known Causes
4 known causesSystem Resource Exhaustion
The operating system has run out of critical resources like memory, disk space, or file descriptors, preventing PostgreSQL from operating correctly.
File System Permissions Issue
The PostgreSQL user or process lacks the necessary read, write, or execute permissions for critical data directories, configuration files, or other system resources.
Underlying Network Failure
The system encountered issues with network communication, such as connection resets, timeouts, or an inability to reach required network services.
Operating System Configuration Errors
System-level configurations, such as kernel parameters, shared memory settings, or other limits, are not correctly set for PostgreSQL's requirements.
Solutions
3 solutions available1. Check PostgreSQL Service Status and Logs easy
Verify the PostgreSQL service is running and examine its logs for more specific error details.
1
Check the status of the PostgreSQL service. The command varies slightly depending on your operating system.
sudo systemctl status postgresql2
If the service is not active, start it.
sudo systemctl start postgresql3
Examine the PostgreSQL log files for more detailed error messages. The location of these logs can be found in your `postgresql.conf` file (look for `log_directory`). Common locations include `/var/log/postgresql/postgresql-X.Y-main.log` or within the data directory.
sudo tail -f /var/log/postgresql/postgresql-14-main.log4
Analyze the log messages for specific OS or system-level errors (e.g., disk full, permission denied, network issues) that might be causing the PostgreSQL process to fail.
text2. Verify Disk Space and Permissions medium
Ensure the PostgreSQL data directory has sufficient free space and correct file system permissions.
1
Identify the PostgreSQL data directory. This is usually specified by the `data_directory` parameter in `postgresql.conf`.
sudo -u postgres psql -c 'SHOW data_directory;'2
Check the available disk space on the partition where the data directory resides.
df -h /path/to/your/data/directory3
If disk space is low, free up space or expand the storage. This is a common cause of 'system error'.
text4
Verify that the `postgres` user (or the user running the PostgreSQL service) has read and write permissions for the data directory and all its contents.
ls -ld /path/to/your/data/directory5
If permissions are incorrect, correct them. Be cautious with recursive permission changes.
sudo chown -R postgres:postgres /path/to/your/data/directory6
Restart PostgreSQL after making any permission or disk space adjustments.
sudo systemctl restart postgresql3. Investigate System Resource Limits (ulimit) advanced
Check if system resource limits are preventing PostgreSQL from operating correctly.
1
Check the current open file descriptor limit for the `postgres` user.
sudo -u postgres ulimit -n2
Check the current process limit for the `postgres` user.
sudo -u postgres ulimit -u3
If these limits are too low, they might need to be increased. This is typically done by editing `/etc/security/limits.conf` or files within `/etc/security/limits.d/`.
# Example for increasing file descriptor limit for postgres user
postgres soft nofile 65536
postgres hard nofile 1310724
After modifying `limits.conf`, you may need to restart the PostgreSQL service or even reboot the server for the changes to take full effect.
sudo systemctl restart postgresql5
Consult PostgreSQL documentation for recommended `ulimit` settings for your specific version and workload.
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