It should be possible to recreate all necessary state in ZK in the cold boot
scenario and recover from a total loss of ZK state without trouble (except some
process restarts). We’ve been moving replication state out of zookeeper for
this reason, etc.
We’ve taken shortcuts that still need to be
This is not moving state to zookeeper, we already have this state in
zookeeper... The location of meta region is only stored in zookeeper,
and if it is cleaned, we will be in trouble...
And I filed HBASE-26193 to fix this problem. PTAL if you have interest.
Thanks.
Andrew Purtell 于2021年8月13日周五
I checked the google doc history, it can show the difference, so I do
not think we need to move it to git. There are still lots of
unresolved comments on the doc, moving to git will lose them.
And I do not think the online meeting breaks the rule in ASF, we will
send out the meeting notes here and
In HBASE-18095, the community provided a new way to get the registry
information of a cluster, without touching ZooKeeper. The decision at
that time was to use masters(including active and backup masters) as
the connection registry endpoint.
Later, when discussing how to implement splittable meta,
On Fri, Aug 13, 2021 at 8:39 AM Andrew Purtell
wrote:
> Also let me say that your entreaty for more to join your calls is fine and
> I hope that happens, but this is Apache, and discussions should take place
> in suitably asynchronous fashion so all can participate - even those who
> have competi
Also let me say that your entreaty for more to join your calls is fine and I
hope that happens, but this is Apache, and discussions should take place in
suitably asynchronous fashion so all can participate - even those who have
competing responsibilities and commitments and cannot attend the cal
Moving state into zookeeper is the wrong direction. Absolutely not. No, no, no.
We can discuss it but it is very unlikely I would even not veto such a change.
It doesn’t seem like a problem because you have other MUCH better and more
viable options.
> On Aug 13, 2021, at 7:50 AM, Stack wrote:
Rough minutes from our meeting of Wed Aug 11 17:04:44 PDT 2021
Attendees: Francis, Duo, Francis.
We moved to discuss the proposed agenda item, how to implement the
"ROOT" Region.
Duo had a new proposal that we host meta Regions in zookeeper (either
all in a single znode or a znode per location)
