On 11/17/14 12:34 PM, Fujii Masao wrote: > Add --synchronous option to pg_receivexlog, for more reliable WAL writing.
The last two sentences of this piece of documentation are a bit hand-wavy and hard to parse. Could you clarify this? <varlistentry> <term><option>-S <replaceable>slotname</replaceable></option></term> <term><option>--slot=<replaceable class="parameter">slotname</replaceable></option></term> <listitem> <para> Require <application>pg_receivexlog</application> to use an existing replication slot (see <xref linkend="streaming-replication-slots">). When this option is used, <application>pg_receivexlog</> will report a flush position to the server, indicating when each segment has been synchronized to disk so that the server can remove that segment if it is not otherwise needed. <literal>--synchronous</literal> option must be specified when making <application>pg_receivexlog</> run as synchronous standby by using replication slot. Otherwise WAL data cannot be flushed frequently enough for this to work correctly. </para> </listitem> </varlistentry> -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers