> On Apr 21, 2015, at 2:26 PM, Leif Hedstrom <zw...@apache.org> wrote: > > This feature is poorly supported, and causes grief for cache development due > to how it #ifdef’s with the system. There are plans for a new system that > would make the concept of cache hierarchies generic. In the mean time, the > suggestion is that if you need this, you use one of > > 1) Assigning content to volumes and disks via our existing configs. > > 2) Use Linux’s bcache feature, which comes with Linux 3.10 or later. I > suspect e.g. ZFS has something similar. > > 3) Use a third party system to implement the hybrid device (e.g. flash > cache or EnhanceIO. > > > This is tracked in the Jira: > > https://issues.apache.org/jira/browse/TS-3541 > > as well as > > https://issues.apache.org/jira/browse/TS-3165 > > > Unless we hear otherwise within 1 week, this will be implemented for 6.0.0. > We will update the Wiki with the library version dependencies (see below).
No objections have been made to this, so we will proceed with this proposal. — Leif
