SSH Differences Between Staging and INI Configuration Methods

The Question

Recently, a customer asked us:

If we move to using the INI configuration method instead of staging, would password-less SSH still be required?

The Answer

The answer is both "Yes" and "No"

No, for installation and updates/upgrades specifically. Since INI-based configurations force the tpm command to act upon the local host only for installs and updates/upgrades, password-less SSH is not required.

Yes, because there are certain commands that do rely upon password-less SSH to function. These are:

• tungsten_provision_slave
• prov-sl.sh
• multi_trepctl
• tpm diag (pre-6.0.5)
• tpm diag --hosts (>= 6.0.5)
• Any tpm-based backup and restore operations that involve a remote node

Summary

The Wrap-Up

In this blog post we discussed the SSH differences between the Staging and INI configuration methods.

To learn about Continuent solutions in general, check out https://www.continuent.com/solutions

The Library

Please read the docs!

For more information about monitoring Tungsten clusters, please visit https://docs.continuent.com.

Tungsten Clustering is the most flexible, performant global database layer available today - use it underlying your SaaS offering as a strong base upon which to grow your worldwide business!

For more information, please visit https://www.continuent.com/solutions

Want to learn more or run a POC? Contact us.