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stickermule / rump

Hot sync two Redis servers using dumps.
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Question: Is a cluster with replicas supported? #40

Open alrooney opened 3 years ago

alrooney commented 3 years ago

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Question: I have a redis cluster created from the bitnami helm chart here: https://github.com/bitnami/charts/tree/master/bitnami/redis-cluster/#installing-the-chart with 3 master nodes and 3 replica nodes. I am trying to copy data from another redis cluster (with no replicas) into this cluster but I keep getting errors like this: 

./rump -from redis://redis-telem-cache-stg-ksat-m-1-redis-cluster:6379 -to redis://10.255.8.12:6379 -ttl
r
signal: exit
rr
redis read: exit
MOVED 4042 10.255.8.14:6379

Note: Above 10.255.8.12:6379 is one of the master nodes. 

$ kk exec rails-cache-stg-redis-ksat-m-1-redis-cluster-0 -- redis-cli --cluster check 10.255.8.10:6379
Defaulting container name to rails-cache-stg-redis-ksat-m-1-redis-cluster.
Use 'kubectl describe pod/rails-cache-stg-redis-ksat-m-1-redis-cluster-0 -n default-minim-private' to see all of the containers in this pod.
10.255.8.15:6379 (fbdd5a4e...) -> 14029 keys | 5462 slots | 1 slaves.
10.255.8.12:6379 (b3718ac7...) -> 568 keys | 5461 slots | 1 slaves.
10.255.8.14:6379 (8790c578...) -> 487 keys | 5461 slots | 1 slaves.
[OK] 15084 keys in 3 masters.
0.92 keys per slot on average.
>>> Performing Cluster Check (using node 10.255.8.10:6379)
S: 8500263462d98613bc6e1172106ddcd37f5976a6 10.255.8.10:6379
   slots: (0 slots) slave
   replicates b3718ac766349261d819c9923cd915fc43d70352
M: fbdd5a4eebe77b49ec984ec953ec098fe262d320 10.255.8.15:6379
   slots:[5461-10922] (5462 slots) master
   1 additional replica(s)
S: 4b371b26a9b5b3d0f23d2c965197f0bf3cbc355b 10.255.8.11:6379
   slots: (0 slots) slave
   replicates 8790c57879627039f3d74cc599e61707d33d93d4
M: b3718ac766349261d819c9923cd915fc43d70352 10.255.8.12:6379
   slots:[10923-16383] (5461 slots) master
   1 additional replica(s)
S: f01bd775618fd6de9a18160186a48a37b469da03 10.255.8.13:6379
   slots: (0 slots) slave
   replicates fbdd5a4eebe77b49ec984ec953ec098fe262d320
M: 8790c57879627039f3d74cc599e61707d33d93d4 10.255.8.14:6379
   slots:[0-5460] (5461 slots) master
   1 additional replica(s)
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

Does rump currently support clusters with replicas? If it does can you recommend a way to diagnose/debug this further?

Thanks.