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| author | William Schultz <william.schultz@mongodb.com> | 2017-06-02 11:09:56 -0400 |
|---|---|---|
| committer | William Schultz <william.schultz@mongodb.com> | 2017-06-02 17:15:09 -0400 |
| commit | 5bdb58208a4dec96e43d494ddd6495fa808a6922 (patch) | |
| tree | 75ce3899df9886c9b6f888b7ca7cd372a66fcfa5 | |
| parent | c95674f21efc379b60b682dd64fd73a6dee9d5d3 (diff) | |
| download | mongo-5bdb58208a4dec96e43d494ddd6495fa808a6922.tar.gz | |
SERVER-28924 Change DatabasesCloner to use 'nameOnly' version of
listDatabases
(3.2 backport of commit 222729e604843568bb7100be1d94b28853c2da8d)
| -rw-r--r-- | src/mongo/db/repl/data_replicator.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mongo/db/repl/data_replicator.cpp b/src/mongo/db/repl/data_replicator.cpp index aed481df509..145ffc2e92c 100644 --- a/src/mongo/db/repl/data_replicator.cpp +++ b/src/mongo/db/repl/data_replicator.cpp @@ -386,10 +386,12 @@ Status DatabasesCloner::start() { _status = Status::OK(); log() << "starting cloning of all databases"; - // Schedule listDatabase command which will kick off the database cloner per result db. + // Schedule listDatabase command which will kick off the database cloner per result db. We only + // retrieve database names since computing & fetching all database stats can be costly on the + // remote node when there are a large number of collections. Request listDBsReq(_source, "admin", - BSON("listDatabases" << true), + BSON("listDatabases" << true << "nameOnly" << true), rpc::ServerSelectionMetadata(true, boost::none).toBSON()); CBHStatus s = _exec->scheduleRemoteCommand( listDBsReq, |