HAST initial sync speed

[Mikolaj Golub]

On Thu, Jun 13, 2013 at 04:39:41AM -0700, intech wrote:
> Thought this threat is almost 3 years old, I want to ask if this
> MAX_SEND_SIZE adopted in freebsd 8.3 and even fbsd9.1?
> Indeed I have the same issue on 1Gb network - nodes performing sync at only
> 10MBytes/sec ?! and I can't figure out what is happening as network itself
> is not the problem, I tested it.

What version are you running? There have been several changes since
that thread was started related to the synchronization speed issue
(MAX_SEND_SIZE among them). It is recommended to use recent versions.

> And just one question fullsync is only option for HAST replication at time
> of writing, so could HAST perform at 100MB/sec in this mode, and  when we
> expect memsync and async to be released?

Synchronization is run in background by synchronization thread and
hardly depends on replication mode. Anyway, HAST from CURRENT,
STABLE/9 and STABLE/8 supports all three modes. The async mode was
merged to stable branches in Jan 2012, and reached 8.4 and 9.1 (I am
not sure about the later, one needs to check). The memsync mode was
merged in Apr 2013, after 8.4 freeze, so there is no release that
would contain it yet.

-- 
Mikolaj Golub