The memory of version 3.5.6 keeps growing. #3214
Description
版本：
-----------Pika server----------
pika_version: 3.5.6
pika_git_sha:510ae73081190fbd85ec37b40c067b2b1aa9e615
pika_build_compile_date: 2025-09-08 11:08:21
redis_version: 3.5.6
配置：
port : 9221
thread-num : 4
thread-pool-size : 16
sync-thread-num : 6
log-path : ./log/
db-path : ./db/
write-buffer-size : 256M
arena-block-size :
timeout : 60
requirepass :
masterauth :
userpass :
userblacklist :
instance-mode : classic
databases : 1
replication-num : 0
consensus-level : 0
dump-prefix :
dump-path : ./dump/
dump-expire : 0
pidfile : ./pika.pid
maxclients : 20000
target-file-size-base : 20M
expire-logs-days : 7
expire-logs-nums : 10
root-connection-num : 2
slowlog-write-errorlog : no
slowlog-log-slower-than : 10000
slowlog-max-len : 128
db-sync-path : ./dbsync/
db-sync-speed : -1
slave-priority : 100
sync-window-size : 9000
max-conn-rbuf-size : 268435456
write-binlog : yes
binlog-file-size : 104857600
max-cache-statistic-keys : 0
small-compaction-threshold : 5000
max-write-buffer-size : 10737418240
max-write-buffer-num : 2
max-client-response-size : 1073741824
compression : snappy
max-background-flushes : 1
max-background-compactions : 2
max-background-jobs : 3
max-cache-files : 5000
max-bytes-for-level-multiplier : 10
slotmigrate : no
block-cache: 10G
share-block-cache: yes
default-slot-num : 1024
cache-index-and-filter-blocks: yes
pin_l0_filter_and_index_blocks_in_cache : yes
throttle-bytes-per-second : 207200000
max-rsync-parallel-num : 4
cache-num : 16
cache-model : 1
cache-type: string, set, zset, list, hash
zset-cache-field-num-per-key : 512
zset-cache-start-direction : 0
cache-maxmemory : 17179869184
cache-maxmemory-policy : 1
cache-maxmemory-samples: 5
cache-lfu-decay-time: 1
现象：
如下图，内存一直上涨，凌晨3点~6点几乎没有请求，内存也没有降低。
日志：日志里无任何异常
ls -lh *
-rw-r--r-- 1 root root 20M Jan 7 10:12 pika.b05217f30614.root.log.INFO.20260104-025832.1
-rw-r--r-- 1 root root 241 Jan 4 10:58 pika.b05217f30614.root.log.WARNING.20260104-025832.1
lrwxrwxrwx 1 root root 49 Jan 4 10:58 pika.INFO -> pika.b05217f30614.root.log.INFO.20260104-025832.1
lrwxrwxrwx 1 root root 52 Jan 4 10:58 pika.WARNING -> pika.b05217f30614.root.log.WARNING.20260104-025832.1
cat pika.WARNING
Log file created at: 2026/01/04 02:58:32
Running on machine: b05217f30614
Running duration (h:mm:ss): 0:00:00
Log line format: [IWEF]yyyymmdd hh:mm:ss.uuuuuu threadid file:line] msg
W20260104 02:58:32.631595 1 pika_server.cc:71] 0.0.0.0
连接数也不多
netstat -anp| grep 9221|wc -l
18