<para>
Each node saves up change information (using one
<ulink url="http://www.postgresql.org/docs/current/static/logicaldecoding-explanation.html">
- replication slot</ulink> for each peer node) so it can replay changs to a
+ replication slot</ulink> for each peer node) so it can replay changes to a
temporarily unreachable node. If a peer node remains offline indefinitely
this accumulating change information will cause the node to run out of
storage space for PostgreSQL transaction logs (<acronym>WAL</acronym>, in