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Document slave-ignore-maxmemory in redis.conf.

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antirez 2018-08-27 12:34:29 +02:00
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commit 5941022b52
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redis.conf
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@ -602,6 +602,26 @@ slave-priority 100
#
# maxmemory-samples 5
# Starting from Redis 5, by default a slave will ignore its maxmemory setting
# (unless it is promoted to master after a failover or manually). It means
# that the eviction of keys will be just handled by the master, sending the
# DEL commands to the slave as keys evict in the master side.
#
# This behavior ensures that masters and slaves stay consistent, and is usually
# what you want, however if your slave is writable, or you want the slave to have
# a different memory setting, and you are sure all the writes performed to the
# slave are idempotent, then you may change this default (but be sure to understand
# what you are doing).
#
# Note that since the slave by default does not evict, it may end using more
# memory than the one set via maxmemory (there are certain buffers that may
# be larger on the slave, or data structures may sometimes take more memory and so
# forth). So make sure you monitor your slaves and make sure they have enough
# memory to never hit a real out-of-memory condition before the master hits
# the configured maxmemory setting.
#
# slave-ingore-maxmemory yes
############################# LAZY FREEING ####################################
# Redis has two primitives to delete keys. One is called DEL and is a blocking