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| author | Jay Doane <jaydoane@apache.org> | 2020-04-15 10:19:58 -0700 |
|---|---|---|
| committer | Jay Doane <jay.s.doane@gmail.com> | 2020-04-15 10:21:55 -0700 |
| commit | 36364516d32a368b5c58ee197f9c3fbb82394f81 (patch) | |
| tree | a29bbb8d5e1e03d7b3eb95c58687deca54ee4450 /rel/overlay | |
| parent | 6bc6f9c285acba015614e08a62edffbd9a2f3699 (diff) | |
| download | couchdb-36364516d32a368b5c58ee197f9c3fbb82394f81.tar.gz | |
Enable configurable binary chunk size
Currently, the size of binary chunks used for values is fixed at the FDB
imposed limit of 100kB, although they recommend using 10KB [1], (also
note they subtly change units).
This makes that value configurable, allowing e.g. benchmarks to compare
performance of runs with varying chunk size. The cost is a ~10µs config
lookup penalty each time data needs to be chunked.
[1] https://www.foundationdb.org/files/record-layer-paper.pdf
Diffstat (limited to 'rel/overlay')
| -rw-r--r-- | rel/overlay/etc/default.ini | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/rel/overlay/etc/default.ini b/rel/overlay/etc/default.ini index e10a5a0c7..dfc67f7fb 100644 --- a/rel/overlay/etc/default.ini +++ b/rel/overlay/etc/default.ini @@ -239,6 +239,9 @@ port = 6984 ; ; Enable or disable automatic stale index removal in the auto-updater ;index_updater_remove_old_indices = false +; +; Byte size of binary chunks written to FDB values. Defaults to FDB max limit. +;binary_chunk_size = 100000 ; [rexi] ; buffer_count = 2000 |