Comment 5 for bug 1898786
Revision history for this message
| Benjamin Allot (ballot) wrote Re: Issue with bcache bch_mca_scan causing huge IO wait | #5 |
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1b1ed1a
(Get the code!)
Actually we cannot be sure no. The server didn't have any metrics prior to few days ago and the issue was already there.
It's worth nothing that few servers have this bcache configuration, because the cache mode is configured as writethrough and the load is pretty significant.
So no last "good" version.
Actually, we have various IO wait issue on another platform (but running xenial-hwe kernel) and we suspected bcache already. Mentioning it to show that bcache behavior seems to be related to some disk performance since quite some time.