查看etcd的所有键（keys）

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#etcd #服务器

于 2023-08-29 23:30:18 首次发布

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本文介绍了如何使用ecget命令行工具（etcdctl的子命令）来获取数据库中的键范围，包括设置选项如--prefix和--keys-only，以及解决大型数据库大小问题的调试步骤。

ec get --prefix "" --keys-only > out.txt

How to debug large db size issue?

cat out.txt | tr '/' ' ' > key.txt
cat key.txt | awk '{print $2}' |uniq

在这里插入图片描述

# ec get --prefix -h
NAME:
        get - Gets the key or a range of keys

USAGE:
        etcdctl get [options] <key> [range_end] [flags]

OPTIONS:
      --consistency="l"                 Linearizable(l) or Serializable(s)
      --from-key[=false]                Get keys that are greater than or equal to the given key using byte compare
  -h, --help[=false]                    help for get
      --keys-only[=false]               Get only the keys
      --limit=0                         Maximum number of results
      --order=""                        Order of results; ASCEND or DESCEND (ASCEND by default)
      --prefix[=false]                  Get keys with matching prefix
      --print-value-only[=false]        Only write values when using the "simple" output format
      --rev=0                           Specify the kv revision
      --sort-by=""                      Sort target; CREATE, KEY, MODIFY, VALUE, or VERSION

GLOBAL OPTIONS:
      --cacert=""                               verify certificates of TLS-enabled secure servers using this CA bundle
      --cert=""                                 identify secure client using this TLS certificate file
      --command-timeout=5s                      timeout for short running command (excluding dial timeout)
      --debug[=false]                           enable client-side debug logging
      --dial-timeout=2s                         dial timeout for client connections
  -d, --discovery-srv=""                        domain name to query for SRV records describing cluster endpoints
      --discovery-srv-name=""                   service name to query when using DNS discovery
      --endpoints=[127.0.0.1:2379]              gRPC endpoints
      --hex[=false]                             print byte strings as hex encoded strings
      --insecure-discovery[=true]               accept insecure SRV records describing cluster endpoints
      --insecure-skip-tls-verify[=false]        skip server certificate verification
      --insecure-transport[=true]               disable transport security for client connections
      --keepalive-time=2s                       keepalive time for client connections
      --keepalive-timeout=6s                    keepalive timeout for client connections
      --key=""                                  identify secure client using this TLS key file
      --password=""                             password for authentication (if this option is used, --user option shouldn't include password)
      --user=""                                 username[:password] for authentication (prompt if password is not supplied)
  -w, --write-out="simple"                      set the output format (fields, json, protobuf, simple, table)

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