QUEUE/TRANSACTION ID REUSE

2009-06-27 Thread Steve
I'm sure this is a 'how long is a piece of string' type question. What is the frequency of reuse of a queue / transaction ID (in fact what is the correct term for these parts [24692] & 524B4AC8D9; postfix/cleanup[24692]: 524B4AC8D9: How likely is it to see 524B4AC8D9 appear in the same log if it

Re: QUEUE/TRANSACTION ID REUSE

2009-06-27 Thread Wietse Venema
Steve: > I'm sure this is a 'how long is a piece of string' type question. > > What is the frequency of reuse of a queue / transaction ID (in fact what > is the correct term for these parts [24692] & 524B4AC8D9; Once a message is deleted from the queue, its queue ID can be reused at any point in

Re: QUEUE/TRANSACTION ID REUSE

2009-06-27 Thread kj
Wietse Venema wrote: Once a message is deleted from the queue, its queue ID can be reused at any point in time. Wietse How is the queue ID determined? Completely randomly, or does Postfix try to avoid re-using an queue ID too quickly? I'm curious about this because I've never seen

Re: QUEUE/TRANSACTION ID REUSE

2009-06-27 Thread Noel Jones
kj wrote: Wietse Venema wrote: Once a message is deleted from the queue, its queue ID can be reused at any point in time. Wietse How is the queue ID determined? Completely randomly, or does Postfix try to avoid re-using an queue ID too quickly? This is a postfix internal function, and

Re: QUEUE/TRANSACTION ID REUSE

2009-06-27 Thread Sahil Tandon
kj wrote: Wietse Venema wrote: Once a message is deleted from the queue, its queue ID can be reused at any point in time. Wietse How is the queue ID determined? Completely randomly, or does Postfix try to avoid re-using an queue ID too quickly? The queue ID determination is not rando

Re: QUEUE/TRANSACTION ID REUSE

2009-06-27 Thread Sahil Tandon
Steve wrote: in fact what is the correct term for these parts [24692] & 524B4AC8D9 24692 == process ID; 524B4AC8D9 == queue ID. postfix/cleanup[24692]: 524B4AC8D9: -- Sahil Tandon

Re: QUEUE/TRANSACTION ID REUSE

2009-06-28 Thread Magnus Bäck
On Sunday, June 28, 2009 at 01:03 CEST, Noel Jones wrote: [...] > The important point is that postfix guarantees a QUEUEID will be > unique within the current queue. As soon as that file is released, > that same id can be reused any time. Nitpick: I believe "any time" means "at the very e

Re: QUEUE/TRANSACTION ID REUSE

2009-06-29 Thread Victor Duchovni
On Mon, Jun 29, 2009 at 07:17:02AM +0200, Magnus B?ck wrote: > Nitpick: I believe "any time" means "at the very earliest the next > second", i.e. a queue id won't be reused until the second component > of the current time has rolled over to the next. Where "next" is measured from the time the que