Presently the libcephsqlite library becomes unusable (by design, at the
time) when the RADOS instance it uses is blocklisted. Unfortunately,
it's fairly common for this to happen during disruptive events. For the
ceph-mgr, it's unacceptable to require manual intervention via the
`ceph mgr fail` command.
So, this commit reworks libcephsqlite to reconnect to RADOS when its
cluster handle is blocklisted. This is safe as any open "file" by
sqlite3 has its own ptr to the open cluster handle. So those open files
will all continually fail until sqlite3 closes the handle (on database
connection shutdown). The application can then reopen the database if
desired using the fresh RADOS handle.
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
projects / ceph.git / commit