1 <samba:parameter name="change notify timeout"
5 xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
7 <para>This SMB allows a client to tell a server to
8 "watch" a particular directory for any changes and only reply to
9 the SMB request when a change has occurred. Such constant scanning of
10 a directory is expensive under UNIX, hence an <citerefentry><refentrytitle>smbd</refentrytitle>
11 <manvolnum>8</manvolnum></citerefentry> daemon only performs such a scan
12 on each requested directory once every <parameter moreinfo="none">change notify
13 timeout</parameter> seconds. Note that in 3.0.23 this has been changed to a
14 per-share parameter and setting this to zero prevents any change notify directory
15 scans completely on a share. This is to allow this paramter to be set to zero on
16 shares configured for very large directories, where a Windows client will re-scan
17 the entire directory after every delete operation (when deleting many files) due to
18 the change notify triggering. This is an extremely expensive operation on some
22 <value type="default">60</value>
23 <value type="example">300<comment>Would change the scan time to every 5 minutes.</comment></value>