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conf: update description of reversed_reads_auto_bypass_cache in scylla.yaml

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Message-Id: <20220111123937.10750-1-kbraun@scylladb.com>
This commit is contained in:
Kamil Braun
2022-01-11 13:39:37 +01:00
committed by Tomasz Grabiec
parent fe0366f6bc
commit 4c3fb9ac68
1 changed files with 2 additions and 16 deletions
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18
conf/scylla.yaml
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@@ -518,22 +518,8 @@ commitlog_total_space_in_mb: -1
# Keep at 12 for new clusters.
murmur3_partitioner_ignore_msb_bits: 12
# Use a new implementation of reversed reads in sstables when performing
# reversed queries. Bypasses the cache for reversed reads even when
# `bypass cache` is not explicitly specified in the query.
# The new implementation does not require unbounded memory
# (compared to the old implementation which had to fetch entire partitions
# into memory) but does not work with the cache yet. Turn this option off
# if your partitions are small so the old implementation is good enough;
# your queries can then utilize the cache and potentially be faster
# (since they don't need to use sstables as much). You can also turn
# this option off and explicitly perform `bypass cache` queries to
# use the new method.
# This option is temporary and will be removed as soon as the cache
# and sstable reverse read algorithms are updated to handle reversed
# queries correctly.
# The option can be updated without restarting Scylla.
# reversed_reads_auto_bypass_cache: true
# Bypass in-memory data cache (the row cache) when performing reversed queries.
# reversed_reads_auto_bypass_cache: false
# Use a new optimized algorithm for performing reversed reads.
# Set to `false` to fall-back to the old algorithm.