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What Is BCS? Blockchain Service (BCS) is a blockchain platform for enterprises and developers. BCS helps you quickly deploy, manage, and maintain blockchain networks, lowering the threshold for using blockchains. In this way, you can focus on the development and innovation of your
DCS Instance Types Single-Node Redis Master/Standby Redis Proxy Cluster Redis Redis Cluster Read/Write Splitting Redis Comparing DCS Redis Instance Types Single-Node Memcached (Discontinued) Master/Standby Memcached (Discontinued)
What Is DCS? Huawei Cloud Distributed Cache Service (DCS) is an online, distributed, fast in-memory cache service compatible with Redis. It is reliable, scalable, usable out of the box, and easy to manage, meeting your requirements for high read/write performance and fast data access
DCS Instance Specifications Redis 4.0/5.0/6.0/7.0 Redis 6.0 Enterprise Edition Redis 3.0 Instance Specifications (Discontinued) Memcached Instance Specifications (Discontinued)
Selecting DCS Products Select a DCS Redis instance based on your service scenarios, performance requirements, and budget. This document provides references for selecting product editions, instance types, and instance specifications. Selecting a Product Edition Table 1 Product editions
FAQs About ECSs How Do I Determine the Number of ECSs Required? You can summarize the compute resources (such as CPUs and memory) occupied by your application software and estimate the number of required ECSs based on the compute resources provided by each ECS. Can I Exclusively Use
Restarting a DCS Instance To recover an instance in cases such as high memory fragmentation ratio or fault occurrence, try restarting the instance on the DCS console. DCS instances can be restarted in batches. Notes and Constraints The DCS instances must be in the Running or Faulty
Process of Using DCS How to Manage DCS Instances You can access Distributed Cache Service (DCS) from the web-based management console or by using RESTful application programming interfaces (APIs) through HTTPS requests. Using the console You can sign up and log in to the console,
Viewing DCS Metrics The Cloud Eye service monitors the running performance your DCS instances. Procedure Log in to the DCS console. Click in the upper left corner of the console and select the region where your instance is located. In the navigation pane, choose Cache Manager. Click
Deleting a DCS Instance On the DCS console, you can delete one or multiple DCS instances at a time. You can also delete all instance creation tasks that have failed to run. Notes and Constraints The DCS instances exist, and must be in the Running, Faulty, or Stopped state. Deleting
Common DCS Metrics This section describes common Redis metrics. Table 1 Common metrics Metric Description CPU Usage This metric indicates the maximum value in each measurement period (minute-level: every minute; second-level: every 5 seconds). For a single-node or master/standby instance
Monitored DCS Events Introduction Event monitoring provides event collection, query, and alarm reporting. These major events or DCS operation events can be collected to Cloud Eye to alarm. Namespace SYS.DCS Monitored events Table 1 DCS events Event Name Event ID Event Severity Description
Restoring DCS Instances This section describes how to restore instances on the DCS console. This function helps restore instances deleted by mistake. To migrate backup data to other DCS instances, see Backup Import Between DCS Redis Instances. Notes and Constraints You can enable
DCS Dashboard Template DCS is an in-memory database service. It is compatible with Redis, an in-memory database engine, and meets your requirements for high concurrency and fast data access. LTS collects, stores, and queries cloud resource operation records. You can use these records
Auto-renewing a DCS Instance Auto-renewal is easier and prevents DCS instances from being automatically deleted if you forget to manually renew them. The auto-renewal rules are as follows: The first auto-renewal date and billing period are calculated based on the expiration date of
Batch Operations on ECSs Batch Starting ECSs Batch Stopping ECSs Batch Restarting ECSs Batch Reinstalling OSs of ECSs Batch Changing OSs of ECSs Batch Executing Commands on ECSs Parent Topic: Batch Resource Operations
Using Commands to Generate TPC-DS Test Sets The SQL statements of the 99 TPC-DS SQL standard queries can be generated as follows: Preparations Modify the following files in the query_templates directory before generating TPC-DS query statements: Log in to the ECS and go to the /data1
Using Commands to Generate TPC-DS Test Sets The SQL statements of the 99 TPC-DS SQL standard queries can be generated as follows: Preparations Modify the following files in the query_templates directory before generating TPC-DS query statements: Log in to the ECS and go to the /data1
Querying BCS Alarm Statistics Function This API is used to query the alarm statistics of a specified metric of a BCS service. URI POST /v2/{project_id}/blockchains/{blockchain_id}/events/statistic Table 1 Path Parameters Parameter Mandatory Type Description project_id Yes String Project
Querying BCS Monitoring Data Function This API is used to query the monitoring data of a specified metric of a BCS service. URI POST /v2/{project_id}/blockchains/{blockchain_id}/metric/list Table 1 Path Parameters Parameter Mandatory Type Description project_id Yes String Project
