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| author | Erik Johnston <erik@matrix.org> | 2018-05-17 16:07:20 +0100 |
|---|---|---|
| committer | Erik Johnston <erik@matrix.org> | 2018-05-17 16:07:20 +0100 |
| commit | 12fd6d76888cbb79f9db472a0de47819111e5c0d (patch) | |
| tree | 9e899d85c60604d60fbc32c8a0cca2d7fe1ac934 | |
| parent | Make insert_* functions internal and reorder funcs (diff) | |
| download | synapse-12fd6d76888cbb79f9db472a0de47819111e5c0d.tar.xz | |
Document case of unconnected chunks
| -rw-r--r-- | synapse/storage/chunk_ordered_table.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/synapse/storage/chunk_ordered_table.py b/synapse/storage/chunk_ordered_table.py index 4a56af759a..06257d66d8 100644 --- a/synapse/storage/chunk_ordered_table.py +++ b/synapse/storage/chunk_ordered_table.py @@ -38,6 +38,10 @@ class ChunkDBOrderedListStore(OrderedListStore): second chunk, then we say that the first chunk references the second, and thus forming a DAG. + The server may only have a subset of all events in a room, in which case + its possible for the server to have chunks that are unconnected from each + other. The ordering between unconnected chunks is arbitrary. + The class is designed for use inside transactions and so takes a transaction object in the constructor. This means that it needs to be re-instantiated in each transaction, so all state needs to be stored |