当一个minio节点有一个完整的磁盘时，您会做什么？

Question

我有一个由8个minio节点组成的集群。每个节点都有一个1.6 - 1.9 TB的驱动器。节点6的空闲空间小于1兆字节，而其余节点的空闲空间约为200 TB至1TB。是否有任何方法触发已使用资源的再平衡？

Minio是通过docker运行的，下面是堆栈缺陷：

version: '3.7'
services:
  minio1:
    image: minio/minio:RELEASE.2021-03-17T02-33-02Z
    network_mode: "host"
    hostname: minio1
    volumes:
      - /opt/iqdata:/data
    ports:
      - "9001:9000"
    command: server http://minio{1...8}/data
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3
    deploy:
      replicas: 1
      restart_policy:
        delay: 10s
      placement:
          constraints:
            - node.labels.minio1==true
            
  minio2:
    image: minio/minio:RELEASE.2021-03-17T02-33-02Z
    network_mode: "host"
    hostname: minio2
    volumes:
      - /opt/iqdata:/data
    ports:
      - "9002:9000"
    command: server http://minio{1...8}/data
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3
    deploy:
      replicas: 1
      restart_policy:
        delay: 10s
      placement:
          constraints:
            - node.labels.minio2==true  

  minio3:
    image: minio/minio:RELEASE.2021-03-17T02-33-02Z
    network_mode: "host"
    hostname: minio3
    volumes:
      - /opt/iqdata:/data
    ports:
      - "9003:9000"
    command: server http://minio{1...8}/data
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3
    deploy:
      replicas: 1
      restart_policy:
        delay: 10s
      placement:
          constraints:
            - node.labels.minio3==true  

  minio4:
    image: minio/minio:RELEASE.2021-03-17T02-33-02Z
    hostname: minio4
    volumes:
      - /opt/iqdata:/data
    ports:
      - "9004:9000"
    command: server http://minio{1...8}/data
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3      
    deploy:
      replicas: 1
      restart_policy:
        delay: 10s
      placement:
          constraints:
            - node.labels.minio4==true  

  minio5:
    image: minio/minio:RELEASE.2021-03-17T02-33-02Z
    network_mode: "host"
    hostname: minio5
    volumes:
      - /opt/iqdata:/data
    ports:
      - "9005:9000"
    command: server http://minio{1...8}/data
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3      
    deploy:
      replicas: 1
      restart_policy:
        delay: 10s
      placement:
          constraints:
            - node.labels.minio5==true  

  minio6:
    image: minio/minio:RELEASE.2021-03-17T02-33-02Z
    network_mode: "host"
    hostname: minio6
    volumes:
      - /opt/iqdata:/data
    ports:
      - "9006:9000"
    command: server http://minio{1...8}/data
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3      
    deploy:
      replicas: 1
      restart_policy:
        delay: 10s
      placement:
          constraints:
            - node.labels.minio6==true  

  minio7:
    image: minio/minio:RELEASE.2021-03-17T02-33-02Z
    network_mode: "host"
    hostname: minio7
    volumes:
      - /opt/iqdata:/data
    ports:
      - "9007:9000"
    command: server http://minio{1...8}/data
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3      
    deploy:
      replicas: 1
      restart_policy:
        delay: 10s
      placement:
          constraints:
            - node.labels.minio7==true  

  minio8:
    image: minio/minio:RELEASE.2021-03-17T02-33-02Z
    network_mode: "host"
    hostname: minio8
    volumes:
      - /opt/iqdata:/data
    ports:
      - "9008:9000"
    command: server http://minio{1...8}/data
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3      
    deploy:
      replicas: 1
      restart_policy:
        delay: 10s
      placement:
          constraints:
            - node.labels.minio8==true  

secrets:
  secret_key:
    external: true
  access_key:
    external: true

Answer 1

MinIO不执行任何再平衡。如果磁盘空间不足( https://docs.min.io/docs/distributed-minio-quickstart-guide.html )，它支持扩展集群(通过添加新的磁盘池)。

但是，您的情况似乎是异常的--可能是应用程序中的错误(可能创建了同一个对象的太多版本)，或者是MinIO中的错误--这种情况不应该发生。如果没有更多的信息，就很难确定这个问题。

请知道您可以在https://slack.min.io/ 24/7/365找到我们。如果你有商业问题，请联系我们的hello@min.io或我们在https://min.io/pricing?action=talk-to-us的专家聊天功能。