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added admonition for xdcr #905

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Merged
merged 2 commits into from
Aug 7, 2025
Merged

added admonition for xdcr #905

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0f4233f
added admonition for xdcr
iamfortune Aug 7, 2025
c7c70a2
Update sync-with-couchbase-server.adoc
iamfortune Aug 7, 2025
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1 change: 0 additions & 1 deletion modules/ROOT/pages/server-compatibility/server-compatibility-xdcr.adoc
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Expand Up @@ -86,7 +86,6 @@ It pushes data from the primary data center to the secondary data centers, where
image::{image-xdcr-data-replication-to-read-only}[,std-image-size]
====


[#lbl-prov-drc]
== Disaster Recovery Scenario

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8 changes: 5 additions & 3 deletions modules/ROOT/pages/sync/sync-with-couchbase-server.adoc
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Expand Up @@ -56,6 +56,8 @@ Mobile applications require additional metadata in order to manage security and

{sgw-t} stores this information using {cbs} XATTRs (see {cbs} documentation on {server-data-xattr-fundamentals--xref}).

CAUTION: Bi-directional XDCR is only supported in Sync Gateway 4.0.
For earlier versions, upgrade to 4.0 to use bi-directional XDCR.

=== Extended Attributes (XATTRs)

Expand Down Expand Up @@ -138,9 +140,9 @@ SELECT meta().xattrs._sync FROM scope.collection WHERE meta().id = "mydocId"
----
====

WARNING: {sgw} maintains the sync metadata internally, and its structure can change at any time.
Applications must not use it for business logic.
The direct use of the {sqlpp} query or modifying the internal sync metadata contents to drive the business logic is unsupported and must not be used in production environments.
WARNING: {sgw-t} maintains the sync metadata internally, and its structure can change at any time.
Applications must not use it for business logic.
The direct use of the {sqlpp} query or modifying the internal sync metadata contents to drive the business logic is unsupported and must not be used in production environments.
The sync metadata includes the `_sync` extended attribute (XATTR) in use case documents and all `_sync:` prefixed documents in Sync Gateway connected Buckets.

=== Enable Shared Bucket Access
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