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Posted to user@ignite.apache.org by do...@gmx.de on 2022/06/15 14:47:18 UTC
ThinClient connection refused / disconnect
Hi,
I'm experiencing a connection issue when using Java ThinClient at the
customer site. It is using Ignite 2.13.
From time to time it happens that the ThinClient cannot connect at
startup and gets a "connection refused". After several tries it
connects, but frequently is "loses" connection again and all further
attempts to use the ignite client instance lead to connection refused
again. Then after some time it connects again.
at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
at java.base/sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:120)
at
org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
... 25 common frames omitted
Suppressed: org.apache.ignite.client.ClientConnectionException:
Connection refused
... 26 common frames omitted
Caused by: java.net.ConnectException: Connection refused
at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
at java.base/sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:120)
at
org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
I can see there is a idle time out but I'm not setting this. So I assume
the default value 0 means that no timeout should happen?
https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/configuration/ClientConnectorConfiguration.html#DFLT_IDLE_TIMEOUT
Thanks!
Re: ThinClient connection refused / disconnect
Posted by Pavel Tupitsyn <pt...@apache.org>.
Thanks for confirmation!
On Sat, Jul 2, 2022 at 3:32 PM <do...@gmx.de> wrote:
> Fixed it. It was indeed a wrongly configured IP address!
>
>
> On 15.06.22 22:29, don.tequila@gmx.de wrote:
>
> Both server node and thin client are on the same computer, each running in
> a separate Docker container with network „host“. CPU load does not seem to
> be an issue and other server nodes on the same computer and from other
> computers connect to the cluster just fine without such connection issues.
>
> I‘ll check the server logs more thoroughly.
>
>
>
>
> On 15.06.22 at 21:14, Pavel Tupitsyn wrote:
>
> From: "Pavel Tupitsyn" <pt...@apache.org> <pt...@apache.org>
> Date: 15. June 2022
> To: "user" <us...@ignite.apache.org> <us...@ignite.apache.org>
> Cc:
> Subject: Re: ThinClient connection refused / disconnect
> Idle timeout is disabled by default.
>
> Regarding connection issues, either the server is overloaded and can't
> accept connections, or there are network issues.
> 1. Check if the network between client and server is reliable enough
> (measure speed, check packet loss)
> 2. Check server logs and resource utilization
>
> On Wed, Jun 15, 2022 at 5:47 PM <do...@gmx.de> wrote:
>
>> Hi,
>>
>> I'm experiencing a connection issue when using Java ThinClient at the
>> customer site. It is using Ignite 2.13.
>>
>> From time to time it happens that the ThinClient cannot connect at
>> startup and gets a "connection refused". After several tries it
>> connects, but frequently is "loses" connection again and all further
>> attempts to use the ignite client instance lead to connection refused
>> again. Then after some time it connects again.
>>
>> at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> at
>> java.base/sun.nio.ch
>> .SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
>> at java.base/sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:120)
>> at
>>
>> org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
>> ... 25 common frames omitted
>> Suppressed: org.apache.ignite.client.ClientConnectionException:
>> Connection refused
>> ... 26 common frames omitted
>> Caused by: java.net.ConnectException: Connection refused
>> at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> at
>> java.base/sun.nio.ch
>> .SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
>> at java.base/sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:120)
>> at
>>
>> org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
>>
>> I can see there is a idle time out but I'm not setting this. So I assume
>> the default value 0 means that no timeout should happen?
>>
>>
>> https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/configuration/ClientConnectorConfiguration.html#DFLT_IDLE_TIMEOUT
>>
>> Thanks!
>>
>>
>>
Re: ThinClient connection refused / disconnect
Posted by do...@gmx.de.
Fixed it. It was indeed a wrongly configured IP address!
On 15.06.22 22:29, don.tequila@gmx.de wrote:
> Both server node and thin client are on the same computer, each
> running in a separate Docker container with network „host“. CPU load
> does not seem to be an issue and other server nodes on the same
> computer and from other computers connect to the cluster just fine
> without such connection issues.
>
> I‘ll check the server logs more thoroughly.
>
>
>
>
> On 15.06.22 at 21:14, Pavel Tupitsyn wrote:
>
> From: "Pavel Tupitsyn" <pt...@apache.org>
> Date: 15. June 2022
> To: "user" <us...@ignite.apache.org>
> Cc:
> Subject: Re: ThinClient connection refused / disconnect
> Idle timeout is disabled by default.
>
> Regarding connection issues, either the server is overloaded and can't
> accept connections, or there are network issues.
> 1. Check if the network between client and server is reliable enough
> (measure speed, check packet loss)
> 2. Check server logs and resource utilization
>
> On Wed, Jun 15, 2022 at 5:47 PM <do...@gmx.de> wrote:
>
> Hi,
>
> I'm experiencing a connection issue when using Java ThinClient at the
> customer site. It is using Ignite 2.13.
>
> From time to time it happens that the ThinClient cannot connect at
> startup and gets a "connection refused". After several tries it
> connects, but frequently is "loses" connection again and all further
> attempts to use the ignite client instance lead to connection refused
> again. Then after some time it connects again.
>
> at java.base/sun.nio.ch
> <http://sun.nio.ch>.SocketChannelImpl.checkConnect(Native Method)
> at
> java.base/sun.nio.ch
> <http://sun.nio.ch>.SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
> at java.base/sun.nio.ch
> <http://sun.nio.ch>.SocketAdaptor.connect(SocketAdaptor.java:120)
> at
> org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
> ... 25 common frames omitted
> Suppressed: org.apache.ignite.client.ClientConnectionException:
> Connection refused
> ... 26 common frames omitted
> Caused by: java.net.ConnectException: Connection refused
> at java.base/sun.nio.ch
> <http://sun.nio.ch>.SocketChannelImpl.checkConnect(Native Method)
> at
> java.base/sun.nio.ch
> <http://sun.nio.ch>.SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
> at java.base/sun.nio.ch
> <http://sun.nio.ch>.SocketAdaptor.connect(SocketAdaptor.java:120)
> at
> org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
>
> I can see there is a idle time out but I'm not setting this. So I
> assume
> the default value 0 means that no timeout should happen?
>
> https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/configuration/ClientConnectorConfiguration.html#DFLT_IDLE_TIMEOUT
>
> Thanks!
>
>
Re: Re: ThinClient connection refused / disconnect
Posted by do...@gmx.de.
Both server node and thin client are on the same computer, each running in a
separate Docker container with network „host“. CPU load does not seem to be an
issue and other server nodes on the same computer and from other computers
connect to the cluster just fine without such connection issues.
I‘ll check the server logs more thoroughly.
On 15.06.22 at 21:14, Pavel Tupitsyn wrote:
From: "Pavel Tupitsyn" <pt...@apache.org>
Date: 15. June 2022
To: "user" <us...@ignite.apache.org>
Cc:
Subject: Re: ThinClient connection refused / disconnect
Idle timeout is disabled by default.
Regarding connection issues, either the server is overloaded and can't accept
connections, or there are network issues.
1\. Check if the network between client and server is reliable enough (measure
speed, check packet loss)
2\. Check server logs and resource utilization
On Wed, Jun 15, 2022 at 5:47 PM
<[don.tequila@gmx.de](mailto:don.tequila@gmx.de)> wrote:
> Hi,
>
> I'm experiencing a connection issue when using Java ThinClient at the
> customer site. It is using Ignite 2.13.
>
> From time to time it happens that the ThinClient cannot connect at
> startup and gets a "connection refused". After several tries it
> connects, but frequently is "loses" connection again and all further
> attempts to use the ignite client instance lead to connection refused
> again. Then after some time it connects again.
>
> at
> java.base/[sun.nio.ch](http://sun.nio.ch).SocketChannelImpl.checkConnect(Native
> Method)
> at
>
> java.base/[sun.nio.ch](http://sun.nio.ch).SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
> at
> java.base/[sun.nio.ch](http://sun.nio.ch).SocketAdaptor.connect(SocketAdaptor.java:120)
> at
>
> org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
> ... 25 common frames omitted
> Suppressed: org.apache.ignite.client.ClientConnectionException:
> Connection refused
> ... 26 common frames omitted
> Caused by: java.net.ConnectException: Connection refused
> at
> java.base/[sun.nio.ch](http://sun.nio.ch).SocketChannelImpl.checkConnect(Native
> Method)
> at
>
> java.base/[sun.nio.ch](http://sun.nio.ch).SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
> at
> java.base/[sun.nio.ch](http://sun.nio.ch).SocketAdaptor.connect(SocketAdaptor.java:120)
> at
>
> org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
>
> I can see there is a idle time out but I'm not setting this. So I assume
> the default value 0 means that no timeout should happen?
>
>
> <https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/configuration/ClientConnectorConfiguration.html#DFLT_IDLE_TIMEOUT>
>
> Thanks!
>
>
>
Re: ThinClient connection refused / disconnect
Posted by Pavel Tupitsyn <pt...@apache.org>.
Idle timeout is disabled by default.
Regarding connection issues, either the server is overloaded and can't
accept connections, or there are network issues.
1. Check if the network between client and server is reliable enough
(measure speed, check packet loss)
2. Check server logs and resource utilization
On Wed, Jun 15, 2022 at 5:47 PM <do...@gmx.de> wrote:
> Hi,
>
> I'm experiencing a connection issue when using Java ThinClient at the
> customer site. It is using Ignite 2.13.
>
> From time to time it happens that the ThinClient cannot connect at
> startup and gets a "connection refused". After several tries it
> connects, but frequently is "loses" connection again and all further
> attempts to use the ignite client instance lead to connection refused
> again. Then after some time it connects again.
>
> at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> java.base/sun.nio.ch
> .SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
> at java.base/sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:120)
> at
>
> org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
> ... 25 common frames omitted
> Suppressed: org.apache.ignite.client.ClientConnectionException:
> Connection refused
> ... 26 common frames omitted
> Caused by: java.net.ConnectException: Connection refused
> at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> java.base/sun.nio.ch
> .SocketChannelImpl.finishConnect(SocketChannelImpl.java:774)
> at java.base/sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:120)
> at
>
> org.apache.ignite.internal.client.thin.io.gridnioserver.GridNioClientConnectionMultiplexer.open(GridNioClientConnectionMultiplexer.java:125)
>
> I can see there is a idle time out but I'm not setting this. So I assume
> the default value 0 means that no timeout should happen?
>
>
> https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/configuration/ClientConnectorConfiguration.html#DFLT_IDLE_TIMEOUT
>
> Thanks!
>
>
>