* storage/gcs: fix race condition in releasing lock
Previously we were deleting a lock without first checking if the lock we were deleting was our own. There existed a small period of time where vault-0 would lose leadership and vault-1 would get leadership. vault-0 would delete the lock key while vault-1 would write it. If vault-0 won, there'd be another leader election, etc.
This fixes the race by using a CAS operation instead.
* storage/gcs: properly break out of loop during stop
* storage/spanner: properly break out of loop during stop
We support this in the API as of 0.10.2 so read should support it too.
Trivially tested with some log info:
`core: data: data="map[string]interface {}{"zip":[]string{"zap", "zap2"}}"`
when use mysql storage, set` database = "dev-dassets-bc"` , create database and create table will throw exceptions as follows:
Error initializing storage of type mysql: failed to create mysql database: Error 1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-dassets-bc' at line 1
Error initializing storage of type mysql: failed to create mysql table: Error 1046: No database selected
cause of `-` is a MySQL built-in symbol. so add backtick for create database sql\create table sql \dml sqls.
The backwards compatibility logic was preventing updates to role
statements from taking effect. This change removes persistence of
deprecated statement fields.
* Merge Identity Entities if two claim the same alias
Past bugs/race conditions meant two entities could be created each
claiming the same alias. There are planned longer term fixes for this
(outside of the race condition being fixed in 0.10.4) that involve
changing the data model, but this is an immediate workaround that has
the same net effect: if two entities claim the same alias, assume they
were created due to this race condition and merge them.
In this situation, also automatically merge policies so we don't lose
e.g. RGPs.
* OTP SSH guide
* Fixed the required policy
* Added the step to restart the SSH server
* Update ssh-otp.html.md
Just a few edits to highlight its cloud context. Looks great otherwise!
