X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Fdoc%2Fmon-wishlist.txt;fp=src%2Fceph%2Fsrc%2Fdoc%2Fmon-wishlist.txt;h=3d29a3f6260d2cbcb72242a87b23225cb15f4001;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git diff --git a/src/ceph/src/doc/mon-wishlist.txt b/src/ceph/src/doc/mon-wishlist.txt new file mode 100644 index 0000000..3d29a3f --- /dev/null +++ b/src/ceph/src/doc/mon-wishlist.txt @@ -0,0 +1,57 @@ +Monitor Wish List (issue #10509) +================================ + +Low-hanging fruit +----------------- + +* audit helpers that put() messages but do not get() them. + where possible, get rid of those put(). No one expects helpers to + put() messages and that may lead to double frees. (issue #9378) + +Medium complexity +----------------- + +* get rid of QuorumServices. It seemed like a neat idea, but we only have + one or two and they just add complexity and noise. (issue #10506) + +Time consuming / complex +------------------------ + +* Split the OSDMonitor.cc file into auxiliary files. This will mean: + + 1. Logically split subsystems (osd crush, osd pool, ...) + 2. Split the big badass functions, especially prepare/process_command() + +* Have Tracked Ops on the monitor, similarly to the OSDs. (issue #10507) + + 1. Instead of passing messages back and forth, we will pass OpRequests + 2. We may be able to get() the message when we create the OpRequest and + put() it upon OpRequest destruction. This will help controlling the + lifespan of messages and reduce leaks. + 3. There will be a fair amount of work changing stuff from Messages to + OpRequests, and we will need to make sure that we reach a format that + is easily supported throughout the monitor + + Possible format, off the top of my head: + + MonOpRequest: + + int op = m->get_type(); + Message *m = m.get(); + + template + T* get_message() { return (T*)m.get(); } + +* Move to Ref'erenced messages instead of pointers all around. This would + also help with the Tracked Ops thing, as we'd be able to simply ignore all + the get() and put() stuff behind it. (issue #3500) + +Delicate / complex +------------------ + +* Finer-grained Paxos::is_readable() and/or PaxosService::is_readable() + (issue #10508) + + Rationale: a given service S should be able to read its committed state + even though a Paxos proposal is happening, as long as the on-going + proposal is not a value of service S.