buddy should not create table in parallel

[githubmanticore]

Logstash sends batch of request into daemon and sends some batches in parallel multiple requests and daemon routes all these in buddy in case no table found for auto CREATE TABLE these fails at the different stages after the table got created for the 1st request.

[githubmanticore]

➤ Stan commented:

not sure how to fix that case but the simplest fix is
to use global lock at the create table buddy plugin that only one request could be processed at the time then after plugin took the lock add check under the lock that table really missed at the daemon - to make sure that previous request released the lock just not created the table already.

[githubmanticore]

➤ Sergey Nikolaev commented:

to use global lock at the create table buddy plugin

Makes sense to me. @donhardman how feasible is this?

[githubmanticore]

➤ Sergey Nikolaev commented:

Decided to handle it on the daemon's side by executing CREATE TABLE through a lock.

[githubmanticore]

➤ Stan commented:

should be fixed at 052bf89 where code at the CREATE TABLE protected by global coro mutex and only one worker allowed to pass