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Supported Model Servers

Any model server that conform to the model server protocol are supported by the inference extension.

Compatible Model Server Versions

Model Server Version Commit Notes
vLLM V0 v0.6.4 and above commit 0ad216f
vLLM V1 v0.8.0 and above commit bc32bc7
Triton(TensorRT-LLM) 25.03 and above commit 15cb989. LoRA affinity feature is not available as the required LoRA metrics haven't been implemented in Triton yet.

vLLM

vLLM is configured as the default in the endpoint picker extension. No further configuration is required.

Triton with TensorRT-LLM Backend

Triton specific metric names need to be specified when starting the EPP.

Option 1: Use Helm

Use --set inferencePool.modelServerType=triton-tensorrt-llm to install the inferencepool via helm. See the inferencepool helm guide for more details.

Option 2: Edit EPP deployment yaml

Add the following to the args of the EPP deployment

- -totalQueuedRequestsMetric - "nv_trt_llm_request_metrics{request_type=waiting}" - -kvCacheUsagePercentageMetric - "nv_trt_llm_kv_cache_block_metrics{kv_cache_block_type=fraction}" - -loraInfoMetric - "" # Set an empty metric to disable LoRA metric scraping as they are not supported by Triton yet.