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For a master/standby DCS Redis 4.0 or later basic instance, there are two domain names displayed on the instance details page of the console: a read/write address (master node) and a read-only address (standby node).
This parameter specifies the maximum number of connections on a single node (single shard).
This parameter specifies the maximum number of connections on a single node (single shard).
Self-Hosted Redis Cluster Migration with redis-shake (Online) redis-shake is an open-source tool for migrating data online or offline (by importing backup files) between Redis Clusters.
by the Redis server ≥ 0 byte 1024(IEC) dcs_cluster_redis_node 1 minute used_memory_rss Used Memory RSS RSS memory that the Redis server has used, which includes all stack and heap memory but not swapped-out memory ≥ 0 byte 1024(IEC) dcs_cluster_redis_node 1 minute used_memory_peak
Connections (Default/Limit) Bandwidth Limit (MB/s) Bandwidth Limit per Redis Server (MB/s) Reference Performance (QPS) Reference Performance per Node (QPS) Specification Code (spec_code in the API) 1 1 2 20,000 96 48 200,000 100,000 redis.ha.xu1.large.p2.1 1 1 3 30,000 144 48 300,000
This parameter specifies the maximum number of connections on a single node (single shard).
(Optional) Read-only Routing can be selected for Proxy Cluster or read/write splitting instances. To forward read requests of a specified user to the master node, replica node, or master/replica node, select Master, Replica, or Master and replica.
Two replicas mean that the instance has two nodes (one master and one standby). AZ AZs where the master node and standby node of the instance are located. Configure instance network settings. Select the created VPC and Subnet.
Importing the Backup File Import the RDB file (or files) to the cloud server. The cloud server must be connected to the target DCS instance.
Using ELB for Public Access to DCS Overview Currently, Huawei Cloud DCS Redis 4.0 and later cannot be bound with elastic IP addresses (EIPs) and cannot be accessed over public networks directly.
To enable public access to a Redis 3.0 instance, see Public Access to a DCS Redis 3.0 Instance (Discontinued). Public access to Redis 4.0 and later instances can be enabled using Elastic Load Balance (ELB).
Use persistent connections ("pconnect" in Redis terminology) to ensure performance.
Value range: master: master node slave: standby node. replication_ip String Parameter description: Replica IP address. Value range: N/A. is_replication Boolean Parameter description: Whether the replica is newly added.
Range: N/A node_type String Definition: Node master/standby role. Range: master: master node slave: standby node proxy: proxy node max_memory String Definition: Total memory size in MB. Range: N/A used_memory String Definition: Used memory size in MB.
The addresses remain unchanged before and after master/standby switchover. You can use either address to connect to the instance. Master/Standby (basic edition): Each instance has one IP address and two domain name addresses.
Check whether the following items meet standards: Bandwidth of a single instance node Memory of a single instance node Replica quantity of Redis Cluster instances Proxy quantity of Proxy Cluster instances maxclients of Proxy Cluster instances (maximum allowed connections exceeded)
QPS per shard for a Redis 6.0 enterprise (performance) instance node: 400,000/s; QPS per shard for an enterprise (storage) instance node: 70,000/s. Monitoring Provides only basic statistics. Provides more than 30 monitoring metrics and customizable alarm threshold and policies.
" }, { "name" : "(master)192.168.2.243", "status" : "RUNNING", "dcs_instance_id" : "03ca9da0-1104-40a5-b49d-5ef8e41bfd19", "dcs_cluster_redis_node" : "e797c3ba8bee782e25cdd4a90eb00517" }, { "name" : "(replica)192.168.2.164", "status" : "RUNNING", "dcs_instance_id
Metric ID Metric Name Description Value Range Monitored Object and Dimension Monitoring Period (Raw Data) bandwidth_usage Bandwidth Usage Percentage of the used bandwidth to the maximum bandwidth limit 0–200% Monitored object: Master/standby DCS Redis 4.0 or 5.0 instances Redis Server
