From 1c36769230e02844803e8e609d5792f40d805fb4 Mon Sep 17 00:00:00 2001 From: Adam C Date: Tue, 15 Jan 2013 13:33:46 +0000 Subject: [PATCH] Update source/administration/sharding.txt Per DOCS-983 - explicit warning --- source/administration/sharding.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/source/administration/sharding.txt b/source/administration/sharding.txt index 95e817940e4..c888c6dfb14 100644 --- a/source/administration/sharding.txt +++ b/source/administration/sharding.txt @@ -595,6 +595,14 @@ insert operation, and can only migrate a single chunk at a time. Chunk migrations are resource intensive and further complicated by large write volume to the migrating chunk. + .. warning:: + + Pre-splitting can only be performed on an empty collection. + When you enable sharding for a collection containing data the + collection will be automatically split for you. Subsequent + attempts to pre-split as below may lead to strange and + unpredictable chunk ranges and sizes. + To create and migrate chunks manually, use the following procedure: #. Split empty chunks in your collection by manually performing