Den Clusterstatus prüfen
Anleitung zum Prüfen des Status eines etcd-Clusters
Voraussetzungen
Gesamtstatus prüfen
Mit endpoint status den Gesamtstatus jedes über die Option --endpoints angegebenen Endpunkts prüfen:
etcdctl endpoint status (--endpoints=$ENDPOINTS|--cluster)
Optionen
--cluster[=false]: use all endpoints from the cluster member list
Funktionsfähigkeit prüfen
Mit endpoint health die Funktionsfähigkeit jedes über die Option --endpoints angegebenen Endpunkts prüfen:
etcdctl endpoint health (--endpoints=$ENDPOINTS|--cluster)
Optionen
--cluster[=false]: use all endpoints from the cluster member list
KV-Hash prüfen
Mit endpoint hashkv den Hash des KV-Verlaufs jedes über die Option --endpoints angegebenen Endpunkts prüfen:
etcdctl endpoint hashkv (--endpoints=$ENDPOINTS|--cluster) [rev=$REV]
Optionen
--cluster[=false]: use all endpoints from the cluster member list
--rev=0: maximum revision to hash (default: latest revision)
Von übergeordneten Befehlen geerbte Optionen
--endpoints="127.0.0.1:2379": gRPC endpoints
-w, --write-out="simple": set the output format (fields, json, protobuf, simple, table)
Beispiele
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 |
+------------------+------------+---------------+