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        • Viewing and Modifying Basic Settings of a DCS Instance - Distributed Cache Service

          Viewing and Modifying Basic Settings of a DCS Instance - Distributed Cache Service

          Viewing and Modifying Basic Settings of a DCS Instance On the DCS console, you can view and modify DCS instance basic information. Viewing and Modifying Basic Information of a DCS Instance Log in to the DCS console. Click in the upper left corner of the management console and select

          Help > Distributed Cache Service > User Guide > Managing Instances
        • Viewing Slow Queries of a DCS Redis Instance - Distributed Cache Service

          Viewing Slow Queries of a DCS Redis Instance - Distributed Cache Service

          Viewing Slow Queries of a DCS Redis Instance Redis logs queries that exceed a specified execution time. You can view the slow logs on the DCS console to identify performance issues. Configure slow queries with the following parameters: slowlog-log-slower-than: The maximum time allowed

          Help > Distributed Cache Service > User Guide > Diagnosing and Analyzing an Instance
        • Changing Cluster DCS Instances to be Across AZs - Distributed Cache Service

          Changing Cluster DCS Instances to be Across AZs - Distributed Cache Service

          Changing Cluster DCS Instances to be Across AZs To implement disaster recovery, cluster instances (whose master and standby nodes are) in a single AZ can be deployed across AZs by migrating the standby nodes to other AZs. Notes and Constraints Available only for single-AZ cluster

          Help > Distributed Cache Service > User Guide > Changing an Instance
        • Viewing Audit Logs of a DCS Redis Instance - Distributed Cache Service

          Viewing Audit Logs of a DCS Redis Instance - Distributed Cache Service

          Viewing Audit Logs of a DCS Redis Instance Command audit logs on the DCS console record client operations on DCS. The storage, query, and analysis of audit logs are provided by Log Tank Service (LTS). Currently, only Proxy Cluster DCS Redis 4.0 and later instances in the CN Beijing4

          Help > Distributed Cache Service > User Guide > Diagnosing and Analyzing an Instance
        • Creating a Custom Parameter Template for a DCS Instance - Distributed Cache Service

          Creating a Custom Parameter Template for a DCS Instance - Distributed Cache Service

          Creating a Custom Parameter Template for a DCS Instance System default parameter templates vary by Redis version and instance type. A system default parameter template contains default instance parameter configurations. Parameter templates can be customized for parameter configurations

          Help > Distributed Cache Service > User Guide > Managing Instances > Configuring DCS Instance Parameter Templates
        • Migrating Data from Self-Hosted Redis to DCS - Distributed Cache Service

          Migrating Data from Self-Hosted Redis to DCS - Distributed Cache Service

          Migrating Data from Self-Hosted Redis to DCS Migrating Self-Built Redis Online Self-Hosted Redis Migration with Backup Files Self-Hosted Redis Migration with redis-cli (AOF) Self-Hosted Redis Migration with redis-cli (RDB) Self-Hosted Redis Cluster Migration with redis-shake (Online

          Help > Distributed Cache Service > User Guide > Migrating Instance Data
        • Example 1: Creating a DCS Redis Instance - Distributed Cache Service

          Example 1: Creating a DCS Redis Instance - Distributed Cache Service

          Example 1: Creating a DCS Redis Instance Scenario This section describes how to create a DCS Redis instance by calling APIs. For details about how to call APIs, see Calling APIs. A 2 GB single-node DCS Redis 5.0 instance is used as an example. The instance uses the Arm CPU architecture

          Help > Distributed Cache Service > API Reference > Examples
        • Common Issues of Creating DCS Instances Using an API - Distributed Cache Service

          Common Issues of Creating DCS Instances Using an API - Distributed Cache Service

          Common Issues of Creating DCS Instances Using an API This topic describes common issues that may occur when you create DCS instances using APIs. Table 1 Common issues of creating DCS instances Issue Solution Setting the Replica Quantity When Purchasing an Instance Using an API If

          Help > Distributed Cache Service > API Reference > Examples
        • Troubleshooting High Memory Usage of a DCS Redis Instance - Distributed Cache Service

          Troubleshooting High Memory Usage of a DCS Redis Instance - Distributed Cache Service

          Troubleshooting High Memory Usage of a DCS Redis Instance Symptom Redis provides fast database services. If the memory is insufficient, keys may be frequently evicted, the response time may increase, and the QPS may be unstable, affecting service running. This is normal due to Redis

          Help > Distributed Cache Service > Troubleshooting
        • Troubleshooting High Bandwidth Usage of a DCS Redis Instance - Distributed Cache Service

          Troubleshooting High Bandwidth Usage of a DCS Redis Instance - Distributed Cache Service

          Troubleshooting High Bandwidth Usage of a DCS Redis Instance Overview Redis instances are close to application services, and therefore they process a large amount of data access requests and use network bandwidth. The maximum bandwidth varies depending on the instance specifications

          Help > Distributed Cache Service > Troubleshooting
        • Troubleshooting High CPU Usage of a DCS Redis Instance - Distributed Cache Service

          Troubleshooting High CPU Usage of a DCS Redis Instance - Distributed Cache Service

          Troubleshooting High CPU Usage of a DCS Redis Instance Symptom The CPU usage of a Redis instance increases dramatically within a short period of time. If the CPU usage is too high, connections may time out, and master/standby switchover may be triggered. Possible Causes The service

          Help > Distributed Cache Service > Troubleshooting
        • Does DCS for Redis Support Redis Clusters? - Distributed Cache Service

          Does DCS for Redis Support Redis Clusters? - Distributed Cache Service

          Does DCS for Redis Support Redis Clusters? Yes. DCS Redis 4.0 and later basic edition instances support native clusters (Redis Cluster) Parent topic: Feature

          Help > Distributed Cache Service > FAQs > Feature
        • Does DCS for Redis Support Cross-AZ Deployment? - Distributed Cache Service

          Does DCS for Redis Support Cross-AZ Deployment? - Distributed Cache Service

          Does DCS for Redis Support Cross-AZ Deployment? Master/Standby, read/write splitting, and cluster DCS Redis instances can be deployed across availability zones (AZs). If instance nodes in an AZ are faulty, nodes in other AZs will not be affected. The standby node automatically becomes

          Help > Distributed Cache Service > FAQs > Security
        • Does DCS for Redis Support Command Audits? - Distributed Cache Service

          Does DCS for Redis Support Command Audits? - Distributed Cache Service

          Does DCS for Redis Support Command Audits? Auditing commands affects read and write performance. Currently, only Proxy Cluster DCS Redis 4.0 and later instances support command audit logs in certain regions. For details, see Viewing Audit Logs of a DCS Redis Instance. Parent topic

          Help > Distributed Cache Service > FAQs > Redis Commands
        • What Memcached Version Is Compatible with DCS for Memcached? - Distributed Cache Service

          What Memcached Version Is Compatible with DCS for Memcached? - Distributed Cache Service

          What Memcached Version Is Compatible with DCS for Memcached? DCS for Memcached is based on Redis 3.0 and is compatible with Memcached 1.5.1. Parent topic: Memcached Usage

          Help > Distributed Cache Service > FAQs > Memcached Usage
        • How Does DCS Delete Expired Keys? - Distributed Cache Service

          How Does DCS Delete Expired Keys? - Distributed Cache Service

          How Does DCS Delete Expired Keys? Question What are the rules for scheduled deletion of expired keys on a daily basis? Can I customize the rules? Mechanisms for Deleting Expired Keys Lazy free deletion: The deletion strategy is controlled in the main I/O event loop. Before a read/

          Help > Distributed Cache Service > FAQs > Big/Hot Key Analysis and Expired Key Scan
        • What DCS Instance Type Changes Are Supported? - Distributed Cache Service

          What DCS Instance Type Changes Are Supported? - Distributed Cache Service

          What DCS Instance Type Changes Are Supported? Table 1 Instance type change options supported by different DCS instances Version Supported Type Change Precautions Redis 3.0 From single-node to master/standby The instance cannot be connected for several seconds and remains read-only

          Help > Distributed Cache Service > FAQs > Instance Scaling and Upgrade
        • Upgrading Major Version of a DCS Redis 3.0 Instance - Distributed Cache Service

          Upgrading Major Version of a DCS Redis 3.0 Instance - Distributed Cache Service

          Upgrading Major Version of a DCS Redis 3.0 Instance DCS has discontinued Redis 3.0. Redis 3.0 has aged, and is out of updates in the open community. You are advised to upgrade your DCS Redis 3.0 instances as soon as possible. DCS for Redis of higher versions are compatible with Redis

          Help > Distributed Cache Service > User Guide > Changing an Instance
        • Scanning and Deleting Expired Keys in a DCS Redis Instance - Distributed Cache Service

          Scanning and Deleting Expired Keys in a DCS Redis Instance - Distributed Cache Service

          Scanning and Deleting Expired Keys in a DCS Redis Instance There are two ways to delete a key in Redis. Use the DEL command to directly delete a key. Use commands such as EXPIRE to set a timeout on a key. After the timeout elapses, the key becomes inaccessible but is not deleted immediately

          Help > Distributed Cache Service > User Guide > Diagnosing and Analyzing an Instance
        • Enabling Public Access of a DCS Redis 3.0 Instance - Distributed Cache Service

          Enabling Public Access of a DCS Redis 3.0 Instance - Distributed Cache Service

          Enabling Public Access of a DCS Redis 3.0 Instance If public access has been enabled for the instance, skip this section. If public access is not enabled, follow the instructions in this section. You can enable or disable SSL encryption when enabling public access. Before accessing

          Help > Distributed Cache Service > User Guide > Accessing a DCS Redis Instance > Public Access to a DCS Redis 3.0 Instance (Discontinued)
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