# Unable to load index root ref \<uuid\>

**URL:** <https://forum.datomic.com/t/unable-to-load-index-root-ref-uuid/1203>\
**Category:** Troubleshooting\
**Created:** [October 15, 2019, 1:53pm UTC](https://forum.datomic.com/t/unable-to-load-index-root-ref-uuid/1203 "2019-10-15T13:53:13Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![max](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.datomic.com/max/32/298_2.png) [@max](https://forum.datomic.com/u/max)\
**Post date:** [October 22, 2019, 8:43am UTC](https://forum.datomic.com/t/unable-to-load-index-root-ref-uuid/1203/6 "2019-10-22T08:43:34Z")

</div>

If transient it seems to linger for long. It’s still happening three times per minute per uuid.

This is the full log entry of the latest instance:

```auto
{
    "Msg": "RestartingDaemonException",
    "Ex": {
        "Via": [
            {
                "Type": "clojure.lang.ExceptionInfo",
                "Message": "Unable to load index root ref 37cada6d-4d4b-4faa-8671-4d4f3ae0fce0",
                "Data": {
                    "Ret": {},
                    "DbId": "37cada6d-4d4b-4faa-8671-4d4f3ae0fce0"
                },
                "At": [
                    "datomic.index$require_ref_map",
                    "invokeStatic",
                    "index.clj",
                    843
                ]
            }
        ],
        "Trace": [
            [
                "datomic.index$require_ref_map",
                "invokeStatic",
                "index.clj",
                843
            ],
            [
                "datomic.index$require_ref_map",
                "invoke",
                "index.clj",
                836
            ],
            [
                "datomic.index$require_root_id",
                "invokeStatic",
                "index.clj",
                849
            ],
            [
                "datomic.index$require_root_id",
                "invoke",
                "index.clj",
                846
            ],
            [
                "datomic.adopter$start_adopter_thread$fn__21647",
                "invoke",
                "adopter.clj",
                67
            ],
            [
                "datomic.async$restarting_daemon$fn __10442$fn__ 10443",
                "invoke",
                "async.clj",
                162
            ],
            [
                "datomic.async$restarting_daemon$fn__10442",
                "invoke",
                "async.clj",
                161
            ],
            [
                "clojure.core$binding_conveyor_fn$fn__5739",
                "invoke",
                "core.clj",
                2030
            ],
            [
                "datomic.async$daemon$fn__10439",
                "invoke",
                "async.clj",
                146
            ],
            [
                "clojure.lang.AFn",
                "run",
                "AFn.java",
                22
            ],
            [
                "java.lang.Thread",
                "run",
                "Thread.java",
                748
            ]
        ],
        "Cause": "Unable to load index root ref 37cada6d-4d4b-4faa-8671-4d4f3ae0fce0",
        "Data": {
            "Ret": {},
            "DbId": "37cada6d-4d4b-4faa-8671-4d4f3ae0fce0"
        }
    },
    "Type": "Alert",
    "Tid": 198,
    "Timestamp": 1571733277389
}

```

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