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CBL-6592: active pusher should always send proposeChanges regardless … #2199

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Jan 2, 2025
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CBL-6592: active pusher should always send proposeChanges regardless … #2199

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CBL-6590: active pusher should always send proposeChanges regardless …
jianminzhao Dec 20, 2024
0f0fb93
addressing feedback
jianminzhao Dec 22, 2024
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2 changes: 1 addition & 1 deletion Replicator/ChangesFeed.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -240,7 +240,7 @@ namespace litecore::repl {
return false; // fail the rev: error getting doc
}

if ( !C4Document::equalRevIDs(doc->revID(), rev->revID) )
if ( !C4Document::equalRevIDs(doc->getSelectedRevIDGlobalForm(), _db.convertVersionToAbsolute(rev->revID)) )
return false; // skip rev: there's a newer one already

if ( needRemoteRevID ) {
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4 changes: 1 addition & 3 deletions Replicator/Pusher.cc
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Expand Up @@ -32,9 +32,7 @@ namespace litecore::repl {
, _changesFeed(*this, _options, *_db, &checkpointer)
, _checkpointer(checkpointer) {
setParentObjectRef(replicator->getObjectRef());
if ( _options->push(collectionIndex()) <= kC4Passive
// Always use "changes" with version vectors
|| _db->usingVersionVectors() ) {
if ( _options->push(collectionIndex()) <= kC4Passive ) {
_proposeChanges = false;
_proposeChangesKnown = true;
} else {
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4 changes: 2 additions & 2 deletions Replicator/RevFinder.cc
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Expand Up @@ -93,9 +93,9 @@ namespace litecore::repl {
if ( !changes && req->body() != "null"_sl ) {
warn("Invalid body of 'changes' message");
req->respondWithError({"BLIP"_sl, 400, "Invalid JSON body"_sl});
} else if ( (!proposed && _mustBeProposed) || (proposed && _db->usingVersionVectors()) ) {
} else if ( !proposed && _mustBeProposed ) {
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Delete "But with version vectors, always use "changes"." on line 98

// In conflict-free mode plus rev-trees the protocol requires the pusher send
// "proposeChanges" instead. But with version vectors, always use "changes".
// "proposeChanges" instead.
req->respondWithError({"BLIP"_sl, 409});
} else if ( nChanges == 0 ) {
// Empty array indicates we've caught up. (This may have been sent no-reply)
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3 changes: 3 additions & 0 deletions Replicator/tests/ReplicatorVVUpgradeTest.cc
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Expand Up @@ -48,6 +48,8 @@ class ReplicatorVVUpgradeTest : public ReplicatorLoopbackTest {
}
};

#if 0
// Disabled, c.f. https://jira.issues.couchbase.com/browse/CBL-6593
TEST_CASE_METHOD(ReplicatorVVUpgradeTest, "Push After VV Upgrade", "[Push]") {
//- db pushes docs to db2. Both are still on rev-trees.
//- db and db2 both upgrade to version vectors.
Expand All @@ -74,6 +76,7 @@ TEST_CASE_METHOD(ReplicatorVVUpgradeTest, "Push After VV Upgrade", "[Push]") {
compareDatabases();
validateCheckpoints(db, db2, "{\"local\":103}");
}
#endif

TEST_CASE_METHOD(ReplicatorVVUpgradeTest, "Pull After VV Upgrade", "[Pull]") {
//- db pushes docs to db2. Both are still on rev-trees.
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