查看Redis集群所有节点内存工具

指定集群中任意一个节点&＃xff0c;查看集群中所有节点当前已用物理内存、配置的最大物理内存和系统物理内存。
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​源码&＃xff08;可从https://github.com/eyjian/redis-tools下载&＃xff09;&＃xff1a;

#!/bin/bash
# Query the memory of all nodes in a cluster
#
# Output example:
# $ ./query_redis_cluster.sh 192.168.0.31.21:6379
# [192.168.0.31.21:6379] Used: 788.57M Max: 15.00G System: 125.56G
# [192.168.0.31.22:6380] Used: 756.98M Max: 15.00G System: 125.56G
# [192.168.0.31.23:6380] Used: 743.93M Max: 15.00G System: 125.56G
# [192.168.0.31.24:6380] Used: 21.73M Max: 15.00G System: 125.56G
# [192.168.0.31.25:6380] Used: 819.11M Max: 15.00G System: 125.56G
# [192.168.0.31.24:6379] Used: 771.70M Max: 15.00G System: 125.56G
# [192.168.0.31.26:6379] Used: 920.77M Max: 15.00G System: 125.56G
# [192.168.0.31.27:6380] Used: 889.09M Max: 15.00G System: 125.27G
# [192.168.0.31.28:6379] Used: 741.24M Max: 15.00G System: 125.56G
# [192.168.0.31.29:6380] Used: 699.55M Max: 15.00G System: 125.56G
# [192.168.0.31.27:6379] Used: 752.89M Max: 15.00G System: 125.27G
# [192.168.0.31.21:6380] Used: 716.05M Max: 15.00G System: 125.56G
# [192.168.0.31.23:6379] Used: 784.82M Max: 15.00G System: 125.56G
# [192.168.0.31.26:6380] Used: 726.40M Max: 15.00G System: 125.56G
# [192.168.0.31.25:6379] Used: 726.09M Max: 15.00G System: 125.56G
# [192.168.0.31.29:6379] Used: 844.59M Max: 15.00G System: 125.56G
# [192.168.0.31.28:6380] Used: 14.00M Max: 15.00G System: 125.56G
# [192.168.0.31.22:6379] Used: 770.13M Max: 15.00G System: 125.56GREDIS_CLI&＃61;${REDIS_CLI:-redis-cli}
REDIS_IP&＃61;${REDIS_IP:-127.0.0.1}
REDIS_PORT&＃61;${REDIS_PORT:-6379}function usage()
{echo "Usage: &＃96;basename $0&＃96; redis_node" echo "Example: &＃96;basename $0&＃96; 127.0.0.1:6379"
}# with a parameter: single redis node
if test $# -ne 1; then usageexit 1
fieval $(echo "$1" | awk -F[\:] &＃39;{ printf("REDIS_IP&＃61;%s\nREDIS_PORT&＃61;%s\n",$1,$2) }&＃39;)
if test -z "$REDIS_IP" -o -z "$REDIS_PORT"; thenecho "Parameter error"usageexit 1
fi# 确保redis-cli可用
which "$REDIS_CLI" > /dev/null 2>&1
if test $? -ne 0; thenecho "\&＃96;redis-cli\&＃96; not exists or not executable"exit 1
firedis_nodes&＃61;&＃96;redis-cli -h $REDIS_IP -p $REDIS_PORT cluster nodes | awk -F[\ \:\&＃64;] &＃39;!/ERR/{ printf("%s:%s\n",$2,$3); }&＃39;&＃96;
if test -z "$redis_nodes"; then# standlone$REDIS_CLI -h $REDIS_IP -p $REDIS_PORT FLUSHALL
else# clusterfor redis_node in $redis_nodes;doif test ! -z "$redis_node"; theneval $(echo "$redis_node" | awk -F[\:] &＃39;{ printf("redis_node_ip&＃61;%s\nredis_node_port&＃61;%s\n",$1,$2) }&＃39;)if test ! -z "$redis_node_ip" -a ! -z "$redis_node_port"; then items&＃61;(&＃96;$REDIS_CLI -h $redis_node_ip -p $redis_node_port INFO MEMORY 2>&1 | tr &＃39;\r&＃39; &＃39; &＃39;&＃96;)used_memory_rss_human&＃61;0maxmemory_human&＃61;0total_system_memory_human&＃61;0for item in "${items[&＃64;]}"doeval $(echo "$item" | awk -F[\:] &＃39;{ printf("name&＃61;%s\nvalue&＃61;%s\n",$1,$2) }&＃39;)if test "$name" &＃61; "used_memory_rss_human"; thenused_memory_rss_human&＃61;$valueelif test "$name" &＃61; "maxmemory_human"; thenmaxmemory_human&＃61;$valueelif test "$name" &＃61; "total_system_memory_human"; thentotal_system_memory_human&＃61;$valuefidoneecho -e "[\033[1;33m${redis_node_ip}:${redis_node_port}\033[m]\tUsed: \033[0;32;32m$used_memory_rss_human\033[m\tMax: \033[0;32;32m$maxmemory_human\033[m\tSystem: \033[0;32;32m$total_system_memory_human\033[m" fifidone
fi