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diff --git a/chapters/conclusion.tex b/chapters/conclusion.tex index 13457b5..eb4cf72 100644 --- a/chapters/conclusion.tex +++ b/chapters/conclusion.tex @@ -61,6 +61,21 @@ update support. In particular, our framework must also support the following additional features, \begin{enumerate} + \item \textbf{Automatic Tuning of Insertion Rejection Rate.} \\ + The tail latency control system discussed + in Chapter~\ref{chap:tail-latency} is based upon setting a + rejection rate parameter for inserts, which must be tuned for + the data structure being dynamized. The current version treats + this as a user-specified constant parameter, but it would be + ideal for this parameter to be automatically determined based + on the performance of the framework. In particular, we noted in + Chapter~\ref{chap:tail-latency} that having it fixed to a single + value is sub-optimal for some data structures, and there also + exist opportunities to dynamically adjust it based on the actual + rate of inserts into the system to achieve better throughput. The + design of a system for doing this automatic rejection rate tuning is + an important next step for the framework. + \item \textbf{Support for external storage.} \\ While we did have an implementation of sampling framework discussed in Chapter~\ref{chap:sampling} that used an external @@ -69,6 +84,7 @@ following additional features, to extend it with support for external structures, as well as evaluate whether our proposed techniques still function effectively in this context. + \item \textbf{Crash recovery.} \\ It is critical for a database index to support crash recovery, so that it can be recovered to a state consistent with the rest of @@ -77,6 +93,7 @@ following additional features, inefficient crash recovery is straightforward: All operations can be logged and replayed in the event of a crash. But this is highly inefficient, and so a better scheme must be devised. + \item \textbf{Distributed systems support.} \\ The append-only and decomposed nature of dynamized indices make them seem a natural fit in a distributed systems context. This was |