Using `ramalama run --rag` makes the model unable to answer things outside the RAG

[jlebon]

Issue Description

When running with a RAG,

1. The prompt changes (instead of the seal emoji, it's just >)
2. The model becomes very slow
3. But more importantly, the model seems to know nothing about things outside the RAG

Steps to reproduce the issue

Without RAG:

$ ramalama run qwen2.5-coder:14b
🦭 > how do I reverse a list in Python?
In Python, you can reverse a list in several ways. Here are three common methods:

...

With RAG:

$ echo "Jonathan's favourite food is pizza." > out.md
$ ramalama --image quay.io/ramalama/ramalama-rag rag out.md localhost/myrag:0.1

Building localhost/myrag:0.1...
adding vectordb...
138bd1bdce699c0e73dd52603b409762a680da4d9372a733ddfa84060e78fabb
$ ramalama run --rag localhost/myrag:0.1 qwen2.5-coder:14b
> What's Jonathan's favourite food?
Pizza
> how do I reverse a list in Python?
!['I don't know']

Describe the results you received

It doesn't know how to answer questions it previously did when run without the RAG.

Describe the results you expected

It knows how to answer questions it previously did when run without the RAG.

ramalama info output

{
    "Accelerator": "none",
    "Engine": {
        "Info": {
            "host": {
                "arch": "amd64",
                "buildahVersion": "1.39.2",
                "cgroupControllers": [
                    "cpu",
                    "io",
                    "memory",
                    "pids"
                ],
                "cgroupManager": "systemd",
                "cgroupVersion": "v2",
                "conmon": {
                    "package": "conmon-2.1.13-1.fc41.x86_64",
                    "path": "/usr/bin/conmon",
                    "version": "conmon version 2.1.13, commit: "
                },
                "cpuUtilization": {
                    "idlePercent": 98.76,
                    "systemPercent": 0.27,
                    "userPercent": 0.98
                },
                "cpus": 16,
                "databaseBackend": "sqlite",
                "distribution": {
                    "distribution": "fedora",
                    "variant": "silverblue",
                    "version": "41"
                },
                "eventLogger": "journald",
                "freeLocks": 2043,
                "hostname": "flux",
                "idMappings": {
                    "gidmap": [
                        {
                            "container_id": 0,
                            "host_id": 1000,
                            "size": 1
                        },
                        {
                            "container_id": 1,
                            "host_id": 100000,
                            "size": 65536
                        }
                    ],
                    "uidmap": [
                        {
                            "container_id": 0,
                            "host_id": 1000,
                            "size": 1
                        },
                        {
                            "container_id": 1,
                            "host_id": 100000,
                            "size": 65536
                        }
                    ]
                },
                "kernel": "6.13.9-200.fc41.x86_64",
                "linkmode": "dynamic",
                "logDriver": "journald",
                "memFree": 13267943424,
                "memTotal": 67100880896,
                "networkBackend": "netavark",
                "networkBackendInfo": {
                    "backend": "netavark",
                    "dns": {
                        "package": "aardvark-dns-1.14.0-1.fc41.x86_64",
                        "path": "/usr/libexec/podman/aardvark-dns",
                        "version": "aardvark-dns 1.14.0"
                    },
                    "package": "netavark-1.14.1-1.fc41.x86_64",
                    "path": "/usr/libexec/podman/netavark",
                    "version": "netavark 1.14.1"
                },
                "ociRuntime": {
                    "name": "crun",
                    "package": "crun-1.20-2.fc41.x86_64",
                    "path": "/usr/bin/crun",
                    "version": "crun version 1.20\ncommit: 9c9a76ac11994701dd666c4f0b869ceffb599a66\nrundir: /run/user/1000/crun\nspec: 1.0.0\n+SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +LIBKRUN +WASM:wasmedge +YAJL"
                },
                "os": "linux",
                "pasta": {
                    "executable": "/usr/bin/pasta",
                    "package": "passt-0^20250320.g32f6212-2.fc41.x86_64",
                    "version": ""
                },
                "remoteSocket": {
                    "exists": true,
                    "path": "/run/user/1000/podman/podman.sock"
                },
                "rootlessNetworkCmd": "pasta",
                "security": {
                    "apparmorEnabled": false,
                    "capabilities": "CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT",
                    "rootless": true,
                    "seccompEnabled": true,
                    "seccompProfilePath": "/usr/share/containers/seccomp.json",
                    "selinuxEnabled": true
                },
                "serviceIsRemote": false,
                "slirp4netns": {
                    "executable": "/usr/bin/slirp4netns",
                    "package": "slirp4netns-1.3.1-1.fc41.x86_64",
                    "version": "slirp4netns version 1.3.1\ncommit: e5e368c4f5db6ae75c2fce786e31eef9da6bf236\nlibslirp: 4.8.0\nSLIRP_CONFIG_VERSION_MAX: 5\nlibseccomp: 2.5.5"
                },
                "swapFree": 5491326976,
                "swapTotal": 8589930496,
                "uptime": "201h 32m 52.00s (Approximately 8.38 days)",
                "variant": ""
            },
            "plugins": {
                "authorization": null,
                "log": [
                    "k8s-file",
                    "none",
                    "passthrough",
                    "journald"
                ],
                "network": [
                    "bridge",
                    "macvlan",
                    "ipvlan"
                ],
                "volume": [
                    "local"
                ]
            },
            "registries": {
                "search": [
                    "registry.fedoraproject.org",
                    "registry.access.redhat.com",
                    "docker.io"
                ]
            },
            "store": {
                "configFile": "/var/home/jlebon/.config/containers/storage.conf",
                "containerStore": {
                    "number": 3,
                    "paused": 0,
                    "running": 1,
                    "stopped": 2
                },
                "graphDriverName": "overlay",
                "graphOptions": {},
                "graphRoot": "/var/home/jlebon/.local/share/containers/storage",
                "graphRootAllocated": 1022488477696,
                "graphRootUsed": 908609159168,
                "graphStatus": {
                    "Backing Filesystem": "btrfs",
                    "Native Overlay Diff": "true",
                    "Supports d_type": "true",
                    "Supports shifting": "false",
                    "Supports volatile": "true",
                    "Using metacopy": "false"
                },
                "imageCopyTmpDir": "/var/tmp",
                "imageStore": {
                    "number": 263
                },
                "runRoot": "/run/user/1000/containers",
                "transientStore": false,
                "volumePath": "/var/home/jlebon/.local/share/containers/storage/volumes"
            },
            "version": {
                "APIVersion": "5.4.1",
                "BuildOrigin": "Fedora Project",
                "Built": 1741651200,
                "BuiltTime": "Mon Mar 10 20:00:00 2025",
                "GitCommit": "b79bc8afe796cba51dd906270a7e1056ccdfcf9e",
                "GoVersion": "go1.23.7",
                "Os": "linux",
                "OsArch": "linux/amd64",
                "Version": "5.4.1"
            }
        },
        "Name": "podman"
    },
    "Image": "quay.io/ramalama/ramalama:0.7",
    "Runtime": "llama.cpp",
    "Store": "/var/home/jlebon/.local/share/ramalama",
    "UseContainer": true,
    "Version": "0.7.4"
}

Upstream Latest Release

No

Additional environment details

No response

Additional information

Unrelated: you need to update

ramalama/.github/ISSUE_TEMPLATE/bug_report.yaml

Line 50 in e1f8fb8

description: Have you tried running the [latest upstream release](https://github.com/containers/podman/releases/latest)

.

[ericcurtin]

Well noticed "rag" and "run" prompts are different @bmahabirbu has got this on his radar... @bmahabirbu is well equipped to comment on a lot of these queries

[bmahabirbu]

Hi @jlebon thanks for the questions hopefully my explanation's help!

1. The difference here is that under the hood RAG has to query the model serve, the rag database, and put an interactive shell on top of this. We're working on a feature that will address these differences by intercepting the llama.cpp server api endpoint to add the context and return the same interactive experience.

2. The model is slower because we are first querying the relevant information from the document vector database and then passing that as context to our model server. The context will be a few small chunks of the document that is relevant to the prompt based on semantic search. Even though the chunks are small they increase the total prompt size by a decent amount so queries can take longer depending on the hardware.

3. This was done by design! RAG allows only for questions to be answered about the documents being inputted only. You'll find all naive RAG implementation out there are like this. Any additional logic that aims to identify questions relating to the document vs without can not only increase the response time even more but also are prone to false negatives and so forth. As of now its better to assume users who use the rag function want to ask question about the document thats being inputted.

An interesting thing to note is that right now model will output 'i dont know' depending on if the question doesn't relate enough to the document. But ive noticed instances where certain models couldnt find the answer even when asked a semi relevant question about the document. Maybe instead it should output 'I couldnt find the answer in the document' to be more clear!