Comparison between Alibaba Cloud Elasticsearch and self-managed Elasticsearch clusters-Elasticsearch(ES)-阿里云帮助中心

Alibaba Cloud Elasticsearch is a fully managed Elasticsearch service that is 100% compatible with open source Elasticsearch, delivers targeted kernel performance optimizations, and includes the commercial X-Pack plug-in for free. It is ready to use out of the box and supports high availability, auto scaling, and pay-as-you-go billing. This topic compares Alibaba Cloud Elasticsearch with self-managed Elasticsearch clusters on Elastic Compute Service (ECS) across five dimensions: overall costs, cluster management, capability support, security, and availability.

Item	Alibaba Cloud Elasticsearch	Self-managed Elasticsearch on ECS
Resource cost	Alibaba Cloud Elasticsearch instance fee: for example, a cluster of three nodes with 2-core, 4 GB (`sn1ne.large` specification), each with 100 GB of storage, costs approximately CNY 13,000 per year. Supports auto scaling, so you can flexibly change node specifications, node count, disk type, and disk capacity.	ECS instance fee: for example, three ECS instances with 2-core, 4 GB (`ecs.sn1ne.large`) and 100 GB data disks cost approximately CNY 11,200 per year. You must handle ECS supply-chain constraints during peak traffic and idle resources during off-peak hours, which may lead to resource waste.
Network fees	Internal network access within the same region is free of charge. Cross-region Internet access is free of traffic charges. Alibaba Cloud Elasticsearch provides Internet access for free, with a default bandwidth of 5 Gbps.	Internal network access within the same region is free of charge. Cross-region Internet access requires you to pay for the outbound traffic yourself. For detailed pricing, see Public bandwidth.
Labor and time	Alibaba Cloud ELK (Elasticsearch, Logstash, and Kibana) is fully managed, ready to use out of the box, and billed on demand. Visual, GUI-based cluster O&M and management capabilities keep operational overhead extremely low.	You must purchase machines and build the Elasticsearch cluster manually. Iteration is slow and time costs are high. You must manage resources and perform cluster O&M yourself, which requires a dedicated Elasticsearch engineering team and results in high labor costs.
Risk cost	The cloud service guarantees 99.9% service reliability, keeps IT risk to a minimum, and makes upper-layer business risk manageable.	A self-managed Elasticsearch cluster provides no minimum reliability guarantee. Reducing business risk requires strong technical expertise and significant investment.
Feature cost	All advanced features of the commercial X-Pack plug-in are included for free. Free OSS-based data backup is provided.	You must pay for the commercial X-Pack suite, which is valued at more than CNY 36,000. You must back up data yourself, and backup storage is billed separately.

Item	Alibaba Cloud Elasticsearch	Self-managed Elasticsearch on ECS
Usability	Ready to use out of the box. With auto scaling you can flexibly adjust cluster configuration with a single click. Supports one-click cluster version upgrades. Eyou intelligent operations and maintenance: performs health checks across more than 20 diagnostic items for clusters, nodes, indexes, and more, and intelligently diagnoses and analyzes exceptions. Advanced monitoring and alerting service: provides richer monitoring metrics through Grafana and supports custom alert rules and the alerting service.	Deployment is complex and resources must be adjusted manually. Data must be migrated before a cluster version upgrade. O&M is difficult and requires running commands to check the health of clusters, nodes, indexes, and more. Provides only basic monitoring capabilities. Complex metrics require secondary encapsulation.
Scenario support	All advanced commercial X-Pack features are included for free. Supports scenario-based configuration templates that provide optimized parameter settings. Search scenario capabilities: an NLP word segmentation plug-in from Alibaba DAMO Academy, a vector search plug-in, and a self-developed SQL plug-in are provided. Log scenario capabilities: the high-performance Indexing Service delivers read/write separation, and Openstore intelligent hybrid storage delivers storage-compute separation, enabling low-cost storage of massive log volumes. For more information, see AliES kernel-enhanced edition.	Capabilities must be developed in-house or integrated from open source.
Performance	Based on the enhanced kernel, a read/write-separation and storage-compute-separation architecture delivers higher performance at lower cost. More than 10 deeply customized kernel-enhancement engine features improve cluster read and write performance.	You must ensure performance yourself, which is technically difficult to implement.
Availability	Supports automatic data backup. Data and service reliability reach 99.9%. Backed by the cloud-native, self-developed AliES enhanced kernel engine, features such as a cluster throttling plug-in and slow query isolation ensure cluster stability. Supports multi-zone deployment, providing an active zone-redundancy architecture across zones in the same city.	You must back up data manually and ensure cluster availability yourself. Implementing disaster-recovery deployment is technically difficult.
Security	By default, an Elasticsearch cluster is accessed within a virtual private cloud (VPC). X-Pack security components are included for free. Field-level access control is supported. Supports HTTPS-based encryption in transit and encryption at rest.	Only basic ECS-level security is provided, so a self-managed Elasticsearch cluster carries relatively high security risk. X-Pack security components must be purchased separately.