<div dir="ltr">I'm seeing OOS not being cleared for many days if not weeks, i.e. the OOS number stays the same.<div><br></div><div>Is there a way to tell if the blocks that are OOS are changing or if it's the same ones that are just taking a very long time to sync with the secondary?</div><div><br></div><div>Version: 8.9.2<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Oct 7, 2019 at 7:55 AM Digimer <<a href="mailto:lists@alteeve.ca">lists@alteeve.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Out of Sync is a question of what has changed locally versus what has<br>
reached the peer. It seems like you're generating changes on the Primary<br>
faster than the Secondary can receive them. So one answer is to speed up<br>
your replication link and/or the speed of the storage on the Secondary,<br>
depending on which is the bottle-neck.<br>
<br>
The other option is to switch to "Protocol C", which tells DRBD to not<br>
consider a write complete until it has reached both nodes. This will<br>
effectively slow down your Primary node's storage to whatever speed the<br>
Secondary can be written to, however, and may not be acceptable in your<br>
use case (see back to point 1 above).<br>
<br>
digimer<br>
<br>
On 2019-10-07 10:40 a.m., G C wrote:<br>
> I have an instance that seems to get OOS down lower and once in a while<br>
> it hits 0 but not very often. Typically my oos is about 180000-200000,<br>
> is there a way to clear this outside of the verify which takes a long<br>
> time? Is there something deeper I can dig into that would stop the oos<br>
> from occurring?<br>
> <br>
> Thank you<br>
> <br>
> <br>
> <br>
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