systemd unit file
Regards,
Le 07/07/2022 à 16:09, Richard Bergmann a écrit :
> I have been struggling with the Too Many Open Files issue running Artemis as
> a service within a service (if that is not confusing enough). My
> /etc/security/limits.conf files contains:
>
> -
>
[External] - Antwort: [Ext] Too Many Open Files
error trying to start Artemis server from a SystemD service
Yes, ulimit -n reports 81920.
From: herbert.helmstr...@systema.com
Sent: Thursday, July 7, 2022 10:21 AM
To: users@activemq.apache.org
Subject: [External]
Yes, ulimit -n reports 81920.
From: herbert.helmstr...@systema.com
Sent: Thursday, July 7, 2022 10:21 AM
To: users@activemq.apache.org
Subject: [External] - Antwort: [Ext] Too Many Open Files error trying to start
Artemis server from a SystemD service
CAUTION
add
LimitNOFILE=81920
to the [Service] section of your systemd unit file
Regards,
Le 07/07/2022 à 16:09, Richard Bergmann a écrit :
> I have been struggling with the Too Many Open Files issue running Artemis as
> a service within a service (if that is not confusing enough). My
/systemd/NetworkTarget/
Best Regards
Herbert
Von:"Richard Bergmann"
An: "users@activemq.apache.org"
Datum: 07.07.2022 16:10
Betreff: [Ext] Too Many Open Files error trying to start Artemis
server from a SystemD service
I have been struggling with the Too M
I have been struggling with the Too Many Open Files issue running Artemis as a
service within a service (if that is not confusing enough). My
/etc/security/limits.conf files contains:
-
.
.
.
# End of file
*softnofile 81920
*hardnofile 81920
-
Originally it was set
Hi,
correct me if I'm wrong but if I listen to a topic the connection must be
always open? In my thinking a PooledConnectionFactory make only sense if
I'm sending a lot of messages to the broker.
BTW. know someone the exactly number of file handles which are open per
connection on the server?
I think he was referring to your clients which could be adjusted to pool
a small amount of connections, rather than opening many.
You obviously can't control this from the server-side. Still its very
uncommon to really need 1000 connections at the same time, it generally
suggests your clients
2014/1/16 Arjen van der Meijden acmmail...@tweakers.net:
I think he was referring to your clients which could be adjusted to pool a
small amount of connections, rather than opening many.
You obviously can't control this from the server-side.
Well, I don't know so much about Apache Camel , but
In general the use of a pooling aware JMS ConnectionFactory such as ActiveMQs
PooledConnectionFactory is *always* recommended. Particularly in Camel which
uses Spring JMS underneath.
Regards,
Torsten Mielke
tmielke.blogspot.com
On 16 Jan 2014, at 10:54 am, Jose María Zaragoza
2014/1/13 Michael Priess digitalover...@googlemail.com:
Is there a way how to find which client open so much connections? Is there
a reason why ActiveMQ doesn't close this connections?
Any idea how to debug such an issue?
Why dont use PooledConnectionFactory?
Regards
Hi,
hi I actually use Apache Camel 2.10.1 in combination with ActiveMQ 5.7.0.
To build a connection to ActiveMQ I use the ActiveMQ ConnectionFactory.
After a while I get this exception:
2013-12-21 04:16:51,442 | ERROR | Could not accept connection :
java.net.SocketException: Too many open files
.
To build a connection to ActiveMQ I use the ActiveMQ ConnectionFactory.
After a while I get this exception:
2013-12-21 04:16:51,442 | ERROR | Could not accept connection :
java.net.SocketException: Too many open files |
org.apache.activemq.broker.TransportConnector | ActiveMQ Transport Server
the ActiveMQ ConnectionFactory.
After a while I get this exception:
2013-12-21 04:16:51,442 | ERROR | Could not accept connection :
java.net.SocketException: Too many open files |
org.apache.activemq.broker.TransportConnector | ActiveMQ Transport Server:
tcp://
0.0.0.0:61616?maximumConnections
The 1000 maximum connections is an insane number for a single connection
pool. I'm hard-pressed to imagine a scenario in which such a large number
of connections can improve performance.
Why the large number?
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etc/security/limits.conf
set nofile
regards,
-Messaggio originale-
From: Jerry Cwiklik
Sent: Tuesday, August 20, 2013 6:04 PM
To: users@activemq.apache.org
Subject: Re: Broker leaks FDs - Too many open files
Thanks, Paul. We are running on Linux (SLES). All clients use openwire
. The broker's jvm is given 8Gig.
JC
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Best regards, Dmitriy V.
Our production broker (v.5.6.0) keeps dying while in heavy use. The broker
log is filled with:
2013-07-28 00:04:08,264 [teTimeout=45000] ERROR TransportConnector
- Could not accept connection : java.net.SocketException: Too many open
files
2013-07-28 00:04:08,264 [teTimeout=45000
PM, Jerry Cwiklik cwik...@us.ibm.com wrote:
Our production broker (v.5.6.0) keeps dying while in heavy use. The broker
log is filled with:
2013-07-28 00:04:08,264 [teTimeout=45000] ERROR TransportConnector
- Could not accept connection : java.net.SocketException: Too many open
files
2013-07
: java.net.SocketException: Too many open
files
..
What are the consequences of using closeAsync=false?
JC
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On Mon, Aug 19, 2013 at 4:57 PM, Jerry Cwiklik cwik...@us.ibm.com wrote:
What are the consequences of using closeAsync=false?
Setting async to false means that the socket close call is blocking and is
not handled in a separate thread.
This is preferable and common in web applications where
/java-io-IOException-Too-many-open-files-v5-4-2-tp4643701p4652133.html
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http://blog.garytully.com
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!
Incidentally, we do have a lot of short lived STOMP producers. Should we
also set /transport.closeAsync=false/ as suggested by Arjen earlier?
Regards,
John Boyer
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, but it
would be nice if the ActiveMQ team could provide some best practices in this
area when a broker has hundreds or even thousands of open connections.
Thanks,
John Boyer
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connections.
Thanks,
John Boyer
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wrote
/java.io.IOException: Too many open/ files error.
Hi,
Have you tried adding ulimit -n 2048 in the ~/.profile of the user
running ActiveMQ ?
Can you show the output of ulimit -a ?
metatech
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many open files
at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
at
sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:145)
at org.eclipse.jetty.server.nio.SelectChannelConnector$1.acceptChannel(SelectChannelConnector.java:74
webapp and it is deployed in a jetty
server. I believe that our server OS's file descriptor limit has enough
value.
After a few days, the application crashed with the following error:
2011-01-05 00:34:40.000:WARN::EXCEPTION java.io.IOException: Too many open
files
, the application crashed with the following error:
2011-01-05 00:34:40.000:WARN::EXCEPTION java.io.IOException: Too many open
filesat sun.nio.ch.ServerSocketChannelImpl.accept0(Native
Method)
at
sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:145
:
2011-01-05 00:34:40.000:WARN::EXCEPTION java.io.IOException: Too many
open
files at sun.nio.ch.ServerSocketChannelImpl.accept0(Native
Method)
at
sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:145
config:
policyEntry queue= producerFlowControl=true memoryLimit=5mb
setup:
1 perl stomp producer producing into a queue,
connecting and disconnecting on every post,
rather low frequency of posts (0.5/minute)
0 consumers
behaviour:
works OK until around 68 messages are in the queue (surely
/activemq/browse/AMQ-1873
After a short time (1 hour or so) the broker is filled with errors
like
'too
many open files' and I have to restart activemq.
I don't believe it's a performance issue because
- the host server is strong
- there are less than 10 queues
- there are less
/browse/AMQ-1873
After a short time (1 hour or so) the broker is filled with errors
like
'too
many open files' and I have to restart activemq.
I don't believe it's a performance issue because
- the host server is strong
- there are less than 10 queues
- there are less
/AMQ-1873
After a short time (1 hour or so) the broker is filled with errors like
'too
many open files' and I have to restart activemq.
I don't believe it's a performance issue because
- the host server is strong
- there are less than 10 queues
- there are less than 1 messages
I assume
wrote:
Hi
I had the issue with 5.2 and now that I installed 5.3 last night, it
still
the same, or even worse.
It basically looks like this issue :
http://issues.apache.org/activemq/browse/AMQ-1873
After a short time (1 hour or so) the broker is filled with errors like
'too
many open
is filled with errors like
'too
many open files' and I have to restart activemq.
I don't believe it's a performance issue because
- the host server is strong
- there are less than 10 queues
- there are less than 1 messages
I assume it has to do also with Stomp connections
Hi,
Dejan Bosanac wrote:
ok, can you at least provide more data on:
- how many producers/consumers are you using
- are you opening a new connection for every message send/receive
I saw the same thing happening in our environment which consists of just one
producer at the moment.
We
Hi
I had the issue with 5.2 and now that I installed 5.3 last night, it still
the same, or even worse.
It basically looks like this issue :
http://issues.apache.org/activemq/browse/AMQ-1873
After a short time (1 hour or so) the broker is filled with errors like 'too
many open files' and I have
/too-many-open-files-tp23473539p23872970.html
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Good news is that we have a solution that works.
We are using Ubuntu Jaunty as the server and the above mentioned tweaks work
imediately.
We have abandoned Centos for now.
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listening on a
different
ip?
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to be on different machines, or can we
have
multiple activemqs running on the same server, each listening on a
different
ip?
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?
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activemqs running on the same server, each listening on a
different
ip?
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machines, or can we
have
multiple activemqs running on the same server, each listening on a
different
ip?
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You can use
:
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You can use multiple brokers on the same machine - but could you
provide a little more detail about your setup ?:
How much memory did you allocate
Well, that is really mostly the default config with some small differences.
- I completely commented out the destinationPolicy-tag. This also
disables the per-queue/topic size limits.
- I upped the memoryUsage to 200 mb, the storeUsage to 1 gb and the
tempUsage to 1 gb.
- I changed the
thanks Arjen - need to get add a Faq entry for this!
On 11 May 2009, at 06:51, Arjen van der Meijden wrote:
There may be at one or more of these three issues that I ran into:
- You actually have a too low setting for the open files. Try
increasing it (see man ulimit etc, be careful that
connection pooling, etc.
From: deathemperor deathempe...@gmail.com
Reply-To: ActiveMQ Users users@activemq.apache.org
Date: Mon, 30 Mar 2009 20:34:03 -0700
To: ActiveMQ Users users@activemq.apache.org
Subject: ActiveMQ 5.2 too many open files exception
I'm running AMQ 5.2.0
java.io.IOException: Too many open files
at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
at sun.nio.ch.ServerSocketChannelImpl.accept(Unknown Source)
at
org.mortbay.jetty.nio.SelectChannelConnector$1.acceptChannel(SelectChannelConnector.java:75
too many open files exception
I'm running AMQ 5.2.0 and keep getting the error:
2009-03-31 08:41:28,674 [...@0.0.0.0:8161] WARN log
- EXCEPTION
java.io.IOException: Too many open files
at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method
I'm running AMQ 5.2.0 and keep getting the error:
2009-03-31 08:41:28,674 [...@0.0.0.0:8161] WARN log
- EXCEPTION
java.io.IOException: Too many open files
at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method
4.1.1 soon with these patches included)
On 2/23/07, GaryG [EMAIL PROTECTED] wrote:
I'm seeing tons of exceptions on the broker:
2007-02-23 07:15:48,528 [xxsxxx:61616] ERROR TransportConnector
- Could not accept connection : java.net.SocketException: Too many open
files
I'm seeing tons of exceptions on the broker:
2007-02-23 07:15:48,528 [xxsxxx:61616] ERROR TransportConnector
- Could not accept connection : java.net.SocketException: Too many open
files
java.net.SocketException: Too many open files
be in such a state in the first place?
Is there a bug with this too many open files issue? Is there another fix
that is recommended?
It's normal *nix resource limits. Just like the nohup thing, this
really doesn't have anything to do with AMQ specifically.
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Christopher G. Stach II
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