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| author | Rainer Gerhards <rgerhards@adiscon.com> | 2008-04-03 13:19:48 +0000 |
|---|---|---|
| committer | Rainer Gerhards <rgerhards@adiscon.com> | 2008-04-03 13:19:48 +0000 |
| commit | 46fbfee41e88034135725beb4136d44b94388ede (patch) | |
| tree | ccb7efd204f881cd47d9ce8e942977614a5d35b3 /doc/queues.html | |
| parent | 5e279ea0f79250a07948ed6c24731f60e8221543 (diff) | |
| download | rsyslog-46fbfee41e88034135725beb4136d44b94388ede.tar.gz rsyslog-46fbfee41e88034135725beb4136d44b94388ede.tar.xz rsyslog-46fbfee41e88034135725beb4136d44b94388ede.zip | |
added the capability to specify a processing (actually dequeue) timeframe
with queues - so things can be configured to be done at off-peak hours
Diffstat (limited to 'doc/queues.html')
| -rw-r--r-- | doc/queues.html | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/doc/queues.html b/doc/queues.html index 80641d8c..a2074d36 100644 --- a/doc/queues.html +++ b/doc/queues.html @@ -288,7 +288,17 @@ directive allows to specify how long (in microseconds) dequeueing should be delayed. While simple, it still is powerful. For example, using a DequeueSlowdown delay of 1,000 microseconds on a UDP send action ensures that no more than 1,000 messages can be sent within a second (actually less, as there is -also some time needed for the processing itself). </p> +also some time needed for the processing itself).</p><h2>Processing Timeframes</h2><p>Queues +can be set to dequeue (process) messages only during certain +timeframes. This is useful if you, for example, would like to transfer +the bulk of messages only during off-peak hours, e.g. when you have +only limited bandwidth on the network path the the central server.</p><p>Currently, +only a single timeframe is supported and, even worse, it can only be +specified by the hour. It is not hard to extend rsyslog's capabilities +in this regard - it was just not requested so far. So if you need more +fine-grained control, let us know and we'll probably implement it. +There are two configuration directives, both should be used together or +results are unpredictable:" <i>$<object>QueueDequeueTimeBegin <hour></i>" and "<i>$<object>QueueDequeueTimeEnd <hour></i>". The hour parameter must be specified in 24-hour format (so 10pm is 22). A use case for this parameter can be found in the <a href="http://wiki.rsyslog.com/index.php/OffPeakHours">rsyslog wiki</a>. </p> <h2>Terminating Queues</h2> <p>Terminating a process sounds easy, but can be complex. <span style="font-size: 12pt; line-height: 115%; font-family: 'Times New Roman',serif;" lang="EN-US"> |