Sync Gateway Database will not go back online

Hello

I resynced my database and now that it is completed, it simply will not go back online.

I am on Couchbase 8.0 / Sync Gateway 4.0

I am following the process here:

I ran this command:

PUT syncgateway.url/test/_config?offline=true

This worked great, and took the database offline.

I then did

POST syncgateway.url/test/_resync

This started the resync process correctly.

I could then monitor the status of the resync.

GET syncgateway.url/test/_resync

{
“status”: “running”,
“start_time”: “2026-03-06T00:08:09.686035444Z”,
“last_error”: “”,
“resync_id”: “303bd7a4-a4b0-479b-92dc-355d508ad5ad”,
“docs_changed”: 452,
“docs_processed”: 11251,
“collections_processing”: {
“_default”: [
“_default”
]
}
}

Then it finished:

{
“status”: “completed”,
“start_time”: “2026-03-06T00:08:09.686035444Z”,
“last_error”: “”,
“resync_id”: “303bd7a4-a4b0-479b-92dc-355d508ad5ad”,
“docs_changed”: 112118,
“docs_processed”: 155738,
“collections_processing”: {
“_default”: [
“_default”
]
}
}

Everything worked great and the resync finished.

However, when I ran this, nothing happens.

PUT syncgateway.url/test/_config?offline=false

I get a successful “201 Created” response. But nothing happens.

If I execute

GET syncgateway.url/test/_config

{
“bucket”: “test”,
“name”: “test”,
offline”: true,
“updated_at”: “2026-03-06T00:30:33.419458568Z”,
“created_at”: “2026-01-20T21:17:53.092857467Z”
}

If I go to
syncgateway.url/test

{
“db_name”: “test”,
“update_seq”: 0,
“committed_update_seq”: 0,
“instance_start_time”: 1772757033408178,
“compact_running”: false,
“purge_seq”: 0,
“disk_format_version”: 0,
state”: “Offline”,
“server_uuid”: “ad2baa518481259d5b3ad03ed7aec763”
}

If I try to acquire a document:

{
“error”: “Service Unavailable”,
“reason”: “DB is currently under maintenance”
}

I have tried shutting the Sync Gateway server off and back on again.
Nothing I do will make it go online.

I have no errors, no connection issues, no failures.

It just “isn’t working”.

Please help, I need to get this back online.
Thank you