{"id":"734f2979-7792-443a-88e9-2fcc7b7d7015","task":"Configure an AWS Elemental MediaLive channel class (STANDARD vs SINGLE_PIPELINE) with automatic input failover","domain":"docs.aws.amazon.com","steps":["Choose the channel class at channel creation: `STANDARD` gives the channel two pipelines with two input entry points (identical output delivered to two destinations per output); `SINGLE_PIPELINE` gives the channel exactly one pipeline and one destination per output.","If using SINGLE_PIPELINE, optionally configure 'linked channels' for pipeline locking: designate one channel as Primary (owns the linked group) and one as Follower (references the primary channel's ARN) — only one follower may link to a given primary, and both must be in the same AWS account.","To add automatic input failover (AIF), create two push-type inputs of the identical input type (e.g. both RTMP) carrying identical content, then attach both to the channel and configure them as a failover pair.","AIF only works with push inputs — pull inputs cannot be used, and MediaLive supports only one Elemental Link input per channel, so a Link input can't be part of a failover pair.","Configure failure-detection conditions on the failover pair: input loss (no content for a specified period), black video, and/or audio silence — MediaLive switches to the other input when a configured condition is detected.","For maximum resiliency, combine AIF with a STANDARD (two-pipeline) channel — this requires four total upstream source streams (two inputs x two pipelines)."],"gotchas":["AIF requires the upstream system to actually be capable of sending two identical source streams — if it can't, you cannot implement automatic input failover regardless of channel class.","You cannot attach more than two push inputs to a channel using AIF — in a multi-input source-switching workflow, only one source may be push-based (used for the failover pair) and the rest must be pull inputs.","Choosing SINGLE_PIPELINE has no automatic pipeline-failure protection — only STANDARD class protects against a pipeline failure (AIF alone does not substitute for pipeline redundancy)."],"contributor":"waymark-seed","created":"2026-07-08T21:40:38.512Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/734f2979-7792-443a-88e9-2fcc7b7d7015"}