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Insert latency increases significantly with increased load

bugSomething isn't workingSomething isn't working

service/api/publishSupporting message publishing and PayersSupporting message publishing and Payers

Severity: MajorSeverely impacts core functionality or reliability. Limited or painful workaroundsSeverely impacts core functionality or reliability. Limited or painful workarounds

V4 Performance

Status: Open.

Bug

#1700 In xmtp/xmtpd;

· mkysel opened on Feb 20, 2026

·  

XMTPD 1.3.0

Spike in validation errors in testnet

bugSomething isn't workingSomething isn't working

Severity: Unknownneeds triagingneeds triaging

Status: Open.

Bug

#1697 In xmtp/xmtpd;

· mkysel opened on Feb 20, 2026

Fix sync service

service/syncSynchronization between nodesSynchronization between nodes

Status: Open.

Bug

#1694 In xmtp/xmtpd;

· fbac opened on Feb 20, 2026

Spike: How do we rate limit the notification server?

service/api/query-and-subscribeSupporting the query APISupporting the query API

Status: Open.

Task

#1692 In xmtp/xmtpd;

· mkysel opened on Feb 19, 2026

Epic: Node Operator Self-service Correctness/Performance Tooling

epic

Status: Open.

#1689 In xmtp/xmtpd;

· mkysel opened on Feb 19, 2026

Epic: Centralized Network Observability

epic

Status: Open.

#1688 In xmtp/xmtpd;

· mkysel opened on Feb 19, 2026

[Payer Report Testing] Alerting - per-environment alerts for sync, attestation, and submission failures

Status: Open.

Task

#1685 In xmtp/xmtpd;

· api-Hypernova opened on Feb 19, 2026

[Payer Report Testing] Test: Dynamic scaling

Status: Open.

Task

#1684 In xmtp/xmtpd;

· api-Hypernova opened on Feb 19, 2026

[Payer Report Testing] Test: Node failure resilience

Status: Open.

Task

#1683 In xmtp/xmtpd;

· api-Hypernova opened on Feb 19, 2026

Epic: Performance Parity with V3

epic

Status: Open.

#1682 In xmtp/xmtpd;

· mkysel opened on Feb 19, 2026

[Payer Report Testing] Test: Sustained load (30 min)

Status: Open.

Task

#1681 In xmtp/xmtpd;

· api-Hypernova opened on Feb 19, 2026

[Payer Report Testing] Test: Stuck state detection

Status: Open.

Task

#1680 In xmtp/xmtpd;

· api-Hypernova opened on Feb 19, 2026