etcd 3.7

How to check Cluster status

Official etcd 3.7 guides for developers, operators, upgrades, APIs, and internals.

Prerequisites

Install etcd and etcdctl

Check Overall Status

endpoint status to check the overall status of each endpoint specified in --endpoints flag:

etcdctl endpoint status (--endpoints=$ENDPOINTS|--cluster)

Options

--cluster[=false]: use all endpoints from the cluster member list

Check Health

endpoint health to check the healthiness of each endpoint specified in --endpoints flag:

etcdctl endpoint health (--endpoints=$ENDPOINTS|--cluster)

Options

--cluster[=false]: use all endpoints from the cluster member list

Check KV Hash

endpoint hashkv to check the KV history hash of each endpoint specified in --endpoints flag:

etcdctl endpoint hashkv (--endpoints=$ENDPOINTS|--cluster) [rev=$REV]

Options

--cluster[=false]: use all endpoints from the cluster member list
--rev=0: maximum revision to hash (default: latest revision)

Options inherited from parent commands

--endpoints="127.0.0.1:2379": gRPC endpoints
-w, --write-out="simple": set the output format (fields, json, protobuf, simple, table)

Examples

etcdctl --write-out=table --endpoints=$ENDPOINTS endpoint status

+------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+
|    ENDPOINT      |        ID        | VERSION | DB SIZE | IS LEADER | IS LEARNER | RAFT TERM | RAFT INDEX | RAFT APPLIED INDEX | ERRORS |
+------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+
| 10.240.0.17:2379 | 4917a7ab173fabe7 |  3.5.0  |   45 kB |      true |      false |         4 |      16726 |              16726 |        |
| 10.240.0.18:2379 | 59796ba9cd1bcd72 |  3.5.0  |   45 kB |     false |      false |         4 |      16726 |              16726 |        |
| 10.240.0.19:2379 | 94df724b66343e6c |  3.5.0  |   45 kB |     false |      false |         4 |      16726 |              16726 |        |
+------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------|

etcdctl --endpoints=$ENDPOINTS endpoint health

10.240.0.17:2379 is healthy: successfully committed proposal: took = 3.345431ms
10.240.0.19:2379 is healthy: successfully committed proposal: took = 3.767967ms
10.240.0.18:2379 is healthy: successfully committed proposal: took = 4.025451ms

etcdctl --cluster endpoint hashkv  --write-out=table

+------------------+------------+---------------+
|     ENDPOINT     |    HASH    | HASH REVISION |
+------------------+------------+---------------+
| 10.240.0.17:2379 | 3892279174 |             3 |
| 10.240.0.18:2379 | 3892279174 |             3 |
| 10.240.0.19:2379 | 3892279174 |             3 |
+------------------+------------+---------------+

Source and license

Documentation imported from pig.center · Upstream documentation

Version: 3.7
License: CC-BY-4.0
Source revision: cd1a9d68fc9418f02dbf478ffac90f7891fdb53c8a4ac77c2d8284c7b12b6c3d

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