[freenet-support] Houston, We have a problem

[Matthew Toseland]

Is the backoff related to the 100% / very high cpu usage that some
people are reporting? Do they go together?

On Thu, Feb 01, 2007 at 07:44:31PM -, Mr. Flibble wrote:
> > So this is just an "all peers are backed off frequently after 
> > the load 
> > limiting changes" report?
> 
> I have no idea :(
> 
> > Or is there a definite problem with nodes not connecting or 
> > even being 
> > backed off?
> 
> The usual nodes seem to be reconnecting.
> In the last couple of  days, I'm up to 3-4  nodes connected (with 4-8 backed
> off) which seems better. I haven't changed anything here, so maybe someone
> else could have given their nodes more bandwidth?
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Re: [freenet-support] Houston, We have a problem

[Matthew Toseland]

Is the backoff related to the 100% / very high cpu usage that some
people are reporting? Do they go together?

On Thu, Feb 01, 2007 at 07:44:31PM -, Mr. Flibble wrote:
  So this is just an all peers are backed off frequently after 
  the load 
  limiting changes report?
 
 I have no idea :(
 
  Or is there a definite problem with nodes not connecting or 
  even being 
  backed off?
 
 The usual nodes seem to be reconnecting.
 In the last couple of  days, I'm up to 3-4  nodes connected (with 4-8 backed
 off) which seems better. I haven't changed anything here, so maybe someone
 else could have given their nodes more bandwidth?


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[freenet-support] Houston, We have a problem

[Mr. Flibble]

> So this is just an "all peers are backed off frequently after 
> the load 
> limiting changes" report?

I have no idea :(

> Or is there a definite problem with nodes not connecting or 
> even being 
> backed off?

The usual nodes seem to be reconnecting.
In the last couple of  days, I'm up to 3-4  nodes connected (with 4-8 backed
off) which seems better. I haven't changed anything here, so maybe someone
else could have given their nodes more bandwidth?

[freenet-support] Houston, We have a problem

[Matthew Toseland]

On Tue, Jan 30, 2007 at 06:59:19PM +, Volodya wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
> 
> > Possibly. But perhaps it's just "backoff sucks". Several of the simulations 
> > seemed to 
> > suggest this!
> 
> What do you mean here, please.

Many of the simulations showed that throttling without backoff was
superior to throttling with backoff. Backoff is intended to prevent
throttling from throttling the whole network down to nothing because of
a small number of very slow nodes causing lots of failures when too many
requests are routed to them.
> 
> - Volodya
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Re: [freenet-support] Houston, We have a problem

[Mr. Flibble]

 So this is just an all peers are backed off frequently after 
 the load 
 limiting changes report?

I have no idea :(

 Or is there a definite problem with nodes not connecting or 
 even being 
 backed off?

The usual nodes seem to be reconnecting.
In the last couple of  days, I'm up to 3-4  nodes connected (with 4-8 backed
off) which seems better. I haven't changed anything here, so maybe someone
else could have given their nodes more bandwidth?

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Re: [freenet-support] Houston, We have a problem

[Matthew Toseland]

On Tue, Jan 30, 2007 at 06:59:19PM +, Volodya wrote:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
  Possibly. But perhaps it's just backoff sucks. Several of the simulations 
  seemed to 
  suggest this!
 
 What do you mean here, please.

Many of the simulations showed that throttling without backoff was
superior to throttling with backoff. Backoff is intended to prevent
throttling from throttling the whole network down to nothing because of
a small number of very slow nodes causing lots of failures when too many
requests are routed to them.
 
 - Volodya


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[freenet-support] Houston, We have a problem

[Volodya]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

> Possibly. But perhaps it's just "backoff sucks". Several of the simulations 
> seemed to 
> suggest this!

What do you mean here, please.

- Volodya

- --
http://freedom.libsyn.com/   Voice of Freedom, Radical Podcast
http://freeselfdefence.info/ Self-defence wiki
http://www.kingstonstudents.org/ Kingston University students' forum

 "None of us are free until all of us are free."~ Mihail Bakunin
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[freenet-support] Houston, We have a problem

[Matthew Toseland]

On Sun, Jan 28, 2007 at 11:39:44AM +, Volodya wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
> 
> Matthew Toseland wrote:
> > So this is just an "all peers are backed off frequently after the load 
> > limiting changes" report?
> > 
> > Or is there a definite problem with nodes not connecting or even being 
> > backed off?
> 
> Well, i am not sure to tell you the truth. The only thing that i was able to 
> figure out is
> that the nodes back off completely since the 1010 and i have not a single one 
> connected
> normally. Every once in a while i have about 15 minutes without back off, and 
> that is
> about it.

# Connected: 8
# Backed off: 5

Earlier reports said that this was a periodic problem; that the whole 
network would get backed off for a while, and then return to normal.
> 
> An interesting thing is that i'm getting messages every once in a while 
> saying that my
> ping time is to high... normally it's something like 15 > 3000. Now i don't 
> like
> mathematics on the philosophical level, but from what i understand in the 
> strictly
> non-modular arithmetic 15 is definitely not more that 3000. I was just 
> interested if
> somebody put the more than sign in the place of less than somewhere in the 
> code.

That's fixed in trunk. It was displaying the wrong value.
> 
> Also it's very weird that it only started to happen after 1010 and doesn't as 
> of yet go
> away, so it's not a temporary problem due to the change, but rather (imho) 
> something a bit
> more serious.

Possibly. But perhaps it's just "backoff sucks". Several of the simulations 
seemed to 
suggest this!
> 
>   - Volodya
> 
> - --
> http://freedom.libsyn.com/   Voice of Freedom, Radical Podcast
> http://freeselfdefence.info/ Self-defence wiki
> http://www.kingstonstudents.org/ Kingston University students' forum
> 
>  "None of us are free until all of us are free."~ Mihail Bakunin
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[freenet-support] Houston, We have a problem

[Volodya]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Matthew Toseland wrote:
> So this is just an "all peers are backed off frequently after the load 
> limiting changes" report?
> 
> Or is there a definite problem with nodes not connecting or even being 
> backed off?

Well, i am not sure to tell you the truth. The only thing that i was able to 
figure out is
that the nodes back off completely since the 1010 and i have not a single one 
connected
normally. Every once in a while i have about 15 minutes without back off, and 
that is
about it.

An interesting thing is that i'm getting messages every once in a while saying 
that my
ping time is to high... normally it's something like 15 > 3000. Now i don't like
mathematics on the philosophical level, but from what i understand in the 
strictly
non-modular arithmetic 15 is definitely not more that 3000. I was just 
interested if
somebody put the more than sign in the place of less than somewhere in the code.

Also it's very weird that it only started to happen after 1010 and doesn't as 
of yet go
away, so it's not a temporary problem due to the change, but rather (imho) 
something a bit
more serious.

  - Volodya

- --
http://freedom.libsyn.com/   Voice of Freedom, Radical Podcast
http://freeselfdefence.info/ Self-defence wiki
http://www.kingstonstudents.org/ Kingston University students' forum

 "None of us are free until all of us are free."~ Mihail Bakunin
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[freenet-support] Houston, We have a problem

[Matthew Toseland]

So this is just an "all peers are backed off frequently after the load 
limiting changes" report?

Or is there a definite problem with nodes not connecting or even being 
backed off?

On Sun, Jan 21, 2007 at 11:29:18PM -, Mr. Flibble wrote:
> > In 1009 and before i had 30K outgoing bandwidth limit and i 
> > was running bit torrent at the
> > same time. I had hard drive access going through the roof, 
> > and thrashing sometimes.
> > Yet, i had no or sometimes 1 backed off node.
> > 
> > Now, with 1011. I just killed every application that uses 
> > much memory or network. I have
> > no thrashing, and CPU stopped going to 100%, but now all the 
> > nodes are backed off,
> > sometimes to the extent of no longer being connected. My ping 
> > time also goes through the roof.
> 
> I have this problem too.
> 
> The  box was thrashing a bit, so I added 512mb to the machine and set
> freenet 0.7 to use 256mb (was on the default of 128mb before).
> 
> * Used Java memory: 207 MiB
> * Allocated Java memory: 254 MiB
> * Maximum Java memory: 254 MiB
> * Available CPUs: 1
> * Running threads: 408
> * JVM Vendor: Sun Microsystems Inc.
> * JVM Version: 1.5.0_09-b01
> * OS Name: Windows 2000
> * OS Version: 5.0
> * OS Architecture: x86
> 
> At the moment I've got the following:
> * Connected: 1
> * Backed off: 6
> * Disconnected: 13
> 
> All backed  off reasons are "ForwardRejectedOverload"
> 
> nodeUptime: 6d4h
> 
> * Total Output: 9.88 GiB (19.3 KiBps)
> * Payload Output: 7.53 GiB (14.7 KiBps) (76%)
> * Total Input: 7.62 GiB (14.9 KiBps)
> * Output Rate: 24.4 KiBps (of 30.0 KiBps)
> * Input Rate: 18.9 KiBps (of 120 KiBps)
> 
> So it does seen to be working, which is fine, but  as  Volodya  says, these
> "backed off" messages didn't happen  that often in previous versions.
> 
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[freenet-support] Houston, We have a problem

[bbac...@googlemail.com]

What is your input and output rate? 1011 runs fine for me, the node
finally uses the allowed output capacity:

# Output Rate: 12.2 KiBps (of 14.0 KiBps)
# Input Rate: 15.8 KiBps (of 56.0 KiBps)

Maybe your output rate is reaching 30K/s and thats just too much for
your connection? Did you try to lower it?

On 1/21/07, Volodya  wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> In 1009 and before i had 30K outgoing bandwidth limit and i was running bit 
> torrent at the
> same time. I had hard drive access going through the roof, and thrashing 
> sometimes.
> Yet, i had no or sometimes 1 backed off node.
>
> Now, with 1011. I just killed every application that uses much memory or 
> network. I have
> no thrashing, and CPU stopped going to 100%, but now all the nodes are backed 
> off,
> sometimes to the extent of no longer being connected. My ping time also goes 
> through the roof.
>
> On #freenet i am being told that there is nothing wrong with freenet code, 
> but that is
> simply impossible.
>
>   - Volodya
>
> - --
> http://freedom.libsyn.com/   Voice of Freedom, Radical Podcast
> http://freeselfdefence.info/ Self-defence wiki
> http://www.kingstonstudents.org/ Kingston University students' forum
>
>  "None of us are free until all of us are free."~ Mihail Bakunin
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> Version: GnuPG v1.4.2.2 (GNU/Linux)
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> =cRrr
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>

[freenet-support] Houston, We have a problem

[Volodya]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

> What is your input and output rate? 1011 runs fine for me, the node
> finally uses the allowed output capacity:
> 
> # Output Rate: 12.2 KiBps (of 14.0 KiBps)
> # Input Rate: 15.8 KiBps (of 56.0 KiBps)
> 
> Maybe your output rate is reaching 30K/s and thats just too much for
> your connection? Did you try to lower it?

# Total Output: 21.6 MiB (2.65 KiBps)
# Payload Output: 13.6 MiB (1.67 KiBps) (63%)
# Total Input: 12.8 MiB (1.57 KiBps)
# Output Rate: 125 Bps (of 5.0 KiBps)
# Input Rate: 842 Bps (of 15.0 KiBps)

- --
http://freedom.libsyn.com/   Voice of Freedom, Radical Podcast
http://freeselfdefence.info/ Self-defence wiki
http://www.kingstonstudents.org/ Kingston University students' forum

 "None of us are free until all of us are free."~ Mihail Bakunin
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[freenet-support] Houston, We have a problem

[Volodya]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

In 1009 and before i had 30K outgoing bandwidth limit and i was running bit 
torrent at the
same time. I had hard drive access going through the roof, and thrashing 
sometimes.
Yet, i had no or sometimes 1 backed off node.

Now, with 1011. I just killed every application that uses much memory or 
network. I have
no thrashing, and CPU stopped going to 100%, but now all the nodes are backed 
off,
sometimes to the extent of no longer being connected. My ping time also goes 
through the roof.

On #freenet i am being told that there is nothing wrong with freenet code, but 
that is
simply impossible.

  - Volodya

- --
http://freedom.libsyn.com/   Voice of Freedom, Radical Podcast
http://freeselfdefence.info/ Self-defence wiki
http://www.kingstonstudents.org/ Kingston University students' forum

 "None of us are free until all of us are free."~ Mihail Bakunin
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=cRrr
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[freenet-support] Houston, We have a problem

[Volodya]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

In 1009 and before i had 30K outgoing bandwidth limit and i was running bit 
torrent at the
same time. I had hard drive access going through the roof, and thrashing 
sometimes.
Yet, i had no or sometimes 1 backed off node.

Now, with 1011. I just killed every application that uses much memory or 
network. I have
no thrashing, and CPU stopped going to 100%, but now all the nodes are backed 
off,
sometimes to the extent of no longer being connected. My ping time also goes 
through the roof.

On #freenet i am being told that there is nothing wrong with freenet code, but 
that is
simply impossible.

  - Volodya

- --
http://freedom.libsyn.com/   Voice of Freedom, Radical Podcast
http://freeselfdefence.info/ Self-defence wiki
http://www.kingstonstudents.org/ Kingston University students' forum

 None of us are free until all of us are free.~ Mihail Bakunin
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Re: [freenet-support] Houston, We have a problem

[Volodya]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

 What is your input and output rate? 1011 runs fine for me, the node
 finally uses the allowed output capacity:
 
 # Output Rate: 12.2 KiBps (of 14.0 KiBps)
 # Input Rate: 15.8 KiBps (of 56.0 KiBps)
 
 Maybe your output rate is reaching 30K/s and thats just too much for
 your connection? Did you try to lower it?

# Total Output: 21.6 MiB (2.65 KiBps)
# Payload Output: 13.6 MiB (1.67 KiBps) (63%)
# Total Input: 12.8 MiB (1.57 KiBps)
# Output Rate: 125 Bps (of 5.0 KiBps)
# Input Rate: 842 Bps (of 15.0 KiBps)

- --
http://freedom.libsyn.com/   Voice of Freedom, Radical Podcast
http://freeselfdefence.info/ Self-defence wiki
http://www.kingstonstudents.org/ Kingston University students' forum

 None of us are free until all of us are free.~ Mihail Bakunin
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