Topic

Time

Content

Source

Tags

When the user ' s request enters the system, a globally unique traceld will be generated on the first layer of the calling network.

The tracelD will be called with each layer and passed back continuously, so through traceld, the path of a user request in the system can be connected in series.

Spanld can locate the position of a request in the system call, and who its upstream and downstream dependencies are respectively.

Traceld is used to distinguish the sequence of calls between different services of the system, spanld is used to concatenate all the paths that a certain request traverses in the system.

Custom Events are used for collection of continuous event type data, queries, and alarms.

Custom Events is for periodic and continuous collection of time series monitoring data, queries, and alarms.

Custom Monitoring is used for periodic and continuous collection of time series monitoring data, queries, and alarms.

Custom Monitoring is used for collection of non-continuous event data, such as information about ECS instance restarts.

Alibaba Cloud provides a wealth of block storage products for ECS, including Cloud Disks (virtualized storage) and Local Disks (physically attached to the server(s) that host your ECS Instances).

Both Local Disks and Cloud Disks use a multi-copy distributed storage mechanism, which has low latency, high performance, durability, and high reliability, and supports creation, expansion and release at any time.

Cloud Disks come In several different varieties: ESSD (Enhanced Solid State) Cloud Disks. SSD (Solid State ) Cloud Disks, and high-efficiency Cloud Disks.

Two types of Cloud Disks can be attached to an ECS: System Disks and Data Disks. System Disks host the ECS instances operating system.

Improve the query efficiency SELECT statements.

Improve the efficiency of DML operations such as UPDATE.

Improve the efficiency of DDL operations.

Reduce invalid data scanning.

There is significant network delay

The write throughput of a single partition is limited, and the 10 MB/s write traffic exceeds

There is not enough space in the Logstore partition

The target partition in the Logstore is not specified

Use a third-party image creation tool to create an image from the physical server. Upload the image to the ECS console to turn it into a custom image. Then, use the custom image to create ECS instances.

Use SMC(Server Migration Center) to collect data from the origin physical server. Create an intermediate ECS instance on Alibaba Cloud and wait for the data transfer to complete. Then generate a new image directly from that intermediate ECS instance.

Use a third-party image creation tool to create an image from the physical server. The image is then uploaded to Alibaba Cloud Object Storage Service (OSS) for storage. In the ECS console, import that image from OSS, then, create an ECS instance from the custom image.

Parameter Path

Query

HTTP Header

HTTP Body

Create RAM users each employee, and set login passwords or create AccessKey credentials as needed

When creating RAM for users, give each user both web console AND AccessKey credentials: there is no need to keep these separate

When there are multiple RAM users under a cloud account, create user groups to classify and authorize RAM users with the same responsibilities

Use system policies to bind reasonable permissions policies to users or user groups, and customize policies for more fine-grained control

Make sure that the security group of the ECS instance allows outbound access to the MySQL service port.

Add the private and public IP addresses of all applications to the RDS whitelist.

Connect the two VPCs through CEN.

Configure a NAT gateway for the VPC to which the ECS instance belongs.