"Rather than building this piece by piece, I think it'd be awesome if someone drew up an end-to-end plan to implement tiered storage, so we can make sure we're discussing the whole final state, and not an implementation detail of one part of the final state?"
Do agree with jeff for this ~~~ If these feature can be supported in oss cassandra , I think it will be very popular, whether in a private deployment environment or a public cloud service (our experience can prove it). In addition, it is also a cost-cutting option for users too Jeff Jirsa <jji...@gmail.com> 于2023年9月26日周二 00:11写道： > > - I think this is a great step forward. > - Being able to move sstables around between tiers of storage is a feature > Cassandra desperately needs, especially if one of those tiers is some sort > of object storage > - This looks like it's a foundational piece that enables that. Perhaps by > a team that's already implemented this end to end? > - Rather than building this piece by piece, I think it'd be awesome if > someone drew up an end-to-end plan to implement tiered storage, so we can > make sure we're discussing the whole final state, and not an implementation > detail of one part of the final state? > > > > > > > On Sun, Sep 24, 2023 at 11:49 PM Claude Warren, Jr via dev < > dev@cassandra.apache.org> wrote: > >> I have just filed CEP-36 [1] to allow for keyspace/table storage outside >> of the standard storage space. >> >> There are two desires driving this change: >> >> 1. The ability to temporarily move some keyspaces/tables to storage >> outside the normal directory tree to other disk so that compaction can >> occur in situations where there is not enough disk space for compaction >> and >> the processing to the moved data can not be suspended. >> 2. The ability to store infrequently used data on slower cheaper >> storage layers. >> >> I have a working POC implementation [2] though there are some issues >> still to be solved and much logging to be reduced. >> >> I look forward to productive discussions, >> Claude >> >> [1] >> https://cwiki.apache.org/confluence/display/CASSANDRA/CEP-36%3A+A+Configurable+ChannelProxy+to+alias+external+storage+locations >> [2] https://github.com/Claudenw/cassandra/tree/channel_proxy_factory >> >> >> -- you are the apple of my eye !
