Mark Callaghan

Results 59 comments of Mark Callaghan

Thanks. If there is a port for Sophia in the ForestDB Benchmark then I will try to run it in the next few months. https://github.com/couchbaselabs/ForestDB-Benchmark By the way, I am...

Yes, LMDB is very fast for read-only workloads on cached 100MB datasets. I hope the Sophia author doesn't spend too much time on this comparison. IO-bound read-only is a bit...

A MySQL storage engine is a huge effort. It would be nice if there were a cleaner API (handler.h is huge and some behavior is obscure). The LevelDB storage engine...

I am not a lawyer so I won't answer your question about use. TokuDB is distributed as open source and included in MariaDB and Percona/MySQL. My brother works at Tokutek...

Someone needs to write a Postgres version of LinkStoreMySQL. I know the use of INSERT ... ON DUPLICATE KEY UPDATE is specific to MySQL. https://github.com/mdcallag/linkbench/blob/master/src/main/java/com/facebook/LinkBench/LinkStoreMysql.java

If you make a pull request to linkbench, my fork might be the best repo as the upstream repo has been archived for lack of activity: https://github.com/mdcallag/linkbench https://github.com/facebookarchive/linkbench

The suggested schema works well for InnoDB. I am curious how it works for other DBMS. I am mostly talking about the covering secondary index on the Link table. That...

Probably because RR is the default for InnoDB. I have never gone through the work to figure out what might happen with InnoDB-style RC, PG-style RR/RC/SSI or Oracle-style RC. At...

Slightly off topic, but we are implementing a MySQL storage engine for RocksDB which will do RR and RC. RR provides PG-style semantics rather than InnoDB. On Fri, Jan 8,...

RR On Fri, Jan 8, 2016 at 10:46 AM, Josh Berkus [email protected] wrote: > Postgres Serializable semantics, or our RR ones? > > — > Reply to this email directly...