diff options
Diffstat (limited to 'src/mongo/s/d_migrate.cpp')
| -rw-r--r-- | src/mongo/s/d_migrate.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/mongo/s/d_migrate.cpp b/src/mongo/s/d_migrate.cpp index 5d9dd0dbbc4..a391cbcb8cb 100644 --- a/src/mongo/s/d_migrate.cpp +++ b/src/mongo/s/d_migrate.cpp @@ -561,10 +561,11 @@ namespace mongo { } BSONObj o = dl.obj(); - + // use the builder size instead of accumulating 'o's size so that we take into consideration - // the overhead of BSONArray indices - if ( a.len() + o.objsize() + 1024 > BSONObjMaxUserSize ) { + // the overhead of BSONArray indices, and *always* append one doc + if ( a.arrSize() != 0 && + a.len() + o.objsize() + 1024 > BSONObjMaxUserSize ) { filledBuffer = true; // break out of outer while loop break; } |