Shards & Replication Topology
ring nkv-prod-eu · 3 shards · 256 hash partitions · replication factor 3 · TLS 1.3 / gRPC Stream
shards
3 / 3
all members voting
partitions
256
vnodes / shard: 85·85·86
max repl lag
11.6 ms
slo < 25 ms
last verification
—
merkle tree, depth 12
divergence
0 keys
anti-entropy queue empty
Interactive Shard Map
click a node to inspect · animated edges = live replication traffic · leader pulse = current lease holder
leader / live
catching up
forwarded writes
RAFT heartbeat
Shard #1 — Stockholm
- node id
- sto-relay-01
- role
- leader
- endpoint
- sto.nkv.swedenpnoo.xyz:9143
- vnodes
- 85
Storage & Load
- dataset
- 2.41 TB (50.0 %)
- keys
- 3,140,882,441
- write iops
- 18,402 /s
- cpu
- 41 %
Replication Health
- lag to leader
- 0.0 ms (local)
- applied index
- 18,442,910
- merkle root
- a91f…7c3e
- anti-entropy
- idle
Partition Distribution
table → partition assignment · hash function xxh3-64 · ranges shown in hex
rows: 0
| partition id | table / namespace | hash range | primary shard | replicas | sync status | repl lag | size |
|---|
Replication Streams
sto-relay-01 → hel-follower-02
STREAMING
3.8 ms · 402 MB/schecksum crc32c ok
sto-relay-01 → fra-follower-03
CATCHING UP
11.6 ms · 154 MB/slag 4,801 entries
hel-follower-02 → fra-follower-03
STREAMING
7.4 ms · 288 MB/schecksum crc32c ok
aggregate replication bandwidth
844 MB/s
Ring Configuration
replication factor
RF = 3
min. in-sync: 2 (quorum)
consistency
STRONG
linearizable reads on leader
hinted handoff
on · 3 h TTL
max 8 GiB per node
anti-entropy
merkle / 15 min
depth 12 · xxh3-64 leaves
topology epoch47 · committed 2026-04-02T09:14:41Z
last full verification2026-04-02T09:13:07Z
verification resultMATCH (256/256 partitions)