Migrating Buckets to Collections & Scopes via Eventing

Couchbase Server
1

Hi,

I am migrating my Couchbase from version 6.6.0 to 7.6.1 and Sync Gateway from 2.8 to 3.1.6.

Here are a few questions:

We have imported the data to 7.6.1, and we have written a function in Eventing to move data from the default collection to another collection based on the document type.

In the latest collection, we are missing the _sync properties. I have used the reference below to move/copy the data to different collections:

Now, my questions are:

  1. Can I use a similar sync_json config for the sync function? I have tried, but I am facing issues.

json

Copy code

{
    "bootstrap": {
        "server": "couchbase://url",
        "username": "username",
        "password": "password",
        "use_tls_server": false
    },
    "bucket_credentials": {
        "mybucket": {
            "username": "username",
            "password": "password"
        }
    }
}

I am using the above config in the sync function. I had to use this curl command with the curl --location -g --request POST flag to create Sync Gateway users/sync function. When I try to configure it in the Sync Gateway JSON file, I face issues. (can i use the same way old style but i want to use bootstrap)
2. After copying the document from the default collection to another collection, how can I retain the _sync properties (mainly rev and channels)? (do i need to make any changes in the sync json)
3. I encounter the error “Changes cannot be saved. SyncGateway is enabled on: {{bucket}}, deployment of source bucket mutating handler will cause Intra Bucket Recursion.” I am trying to delete the document from the default collection after moving it to a different collection.
4.

2

My main problem is i am cloning the document from default collection another collection using coucubase eventing but i am missing the _sync properties

Although i have update the database config like below

{
“name”: “gh-ucil-test”,
“bucket”: “gh-ucil-test”,
“scopes”: {
“_default”: {
“collections”: {
“dbc_task_progress”: {
“sync”: “function(doc, oldDoc, meta) { channel("legacy") }”,
“import_filter”: “function(doc) { return doc.type == "mobile" }”
},
“dbc_company_configuration”: {
“sync”: “function(doc, oldDoc, meta) { channel("collection1") }”,
“import_filter”: “function(doc) { return doc.type == "mobile" }”
}
}
}
},
“num_index_replicas”: 0
}’

3

I was able to solve this.

How do I convert a Sync Gateway JSON configuration from version 2.8 to 3.1.6? Is it converted automatically in the latest version? We want to use collections (the count is around 30). How do I configure the sync function for collections? Any inputs?

4

The above answer is also clear.
We are using an Eventing function to move data from one collection to another. After moving the data, I want to delete it from the default collection. I am also using Sync Gateway.

5

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