Stalled TCP connection with data in RecvQ and ESTABLISHED off
Clash Royale CLAN TAG#URR8PPP
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
My networking skills are quite poor and I am trying to understand the following netstat -ton meaning.
We have redis server and a client with a thread connecting to it via PUB/SUB. The client SUBSCRIBE to a Redis channel.
This, I guess, creates a long lived TCP link between both and the server sends data to the client when something happens on the channel.
However, from time to time (a month to three months) the client stops receiving anything, yet does not crash or raise any errors.
In this state I see the following:
A stalled Recv Q with ESTABLISHED off.
I read around a little bit and it could be related to many things including TCP keep alive parameters?
Any tips and ideas of how to debug such a state?
Restarting the client solves everything.
networking netstat redis
asked Feb 18 '17 at 2:13
coulixcoulix
1031
add a comment |
My networking skills are quite poor and I am trying to understand the following netstat -ton meaning.
We have redis server and a client with a thread connecting to it via PUB/SUB. The client SUBSCRIBE to a Redis channel.
This, I guess, creates a long lived TCP link between both and the server sends data to the client when something happens on the channel.
However, from time to time (a month to three months) the client stops receiving anything, yet does not crash or raise any errors.
In this state I see the following:
A stalled Recv Q with ESTABLISHED off.
I read around a little bit and it could be related to many things including TCP keep alive parameters?
Any tips and ideas of how to debug such a state?
Restarting the client solves everything.
networking netstat redis
asked Feb 18 '17 at 2:13
coulixcoulix
1031
add a comment |
My networking skills are quite poor and I am trying to understand the following netstat -ton meaning.
We have redis server and a client with a thread connecting to it via PUB/SUB. The client SUBSCRIBE to a Redis channel.
This, I guess, creates a long lived TCP link between both and the server sends data to the client when something happens on the channel.
However, from time to time (a month to three months) the client stops receiving anything, yet does not crash or raise any errors.
In this state I see the following:
A stalled Recv Q with ESTABLISHED off.
I read around a little bit and it could be related to many things including TCP keep alive parameters?
Any tips and ideas of how to debug such a state?
Restarting the client solves everything.
networking netstat redis
asked Feb 18 '17 at 2:13
coulixcoulix
1031
My networking skills are quite poor and I am trying to understand the following netstat -ton meaning.
We have redis server and a client with a thread connecting to it via PUB/SUB. The client SUBSCRIBE to a Redis channel.
This, I guess, creates a long lived TCP link between both and the server sends data to the client when something happens on the channel.
However, from time to time (a month to three months) the client stops receiving anything, yet does not crash or raise any errors.
In this state I see the following:
A stalled Recv Q with ESTABLISHED off.
I read around a little bit and it could be related to many things including TCP keep alive parameters?
Any tips and ideas of how to debug such a state?
Restarting the client solves everything.
networking netstat redis
networking netstat redis
asked Feb 18 '17 at 2:13
coulixcoulix
1031
asked Feb 18 '17 at 2:13
coulixcoulix
1031
asked Feb 18 '17 at 2:13
coulixcoulix
1031
asked Feb 18 '17 at 2:13
coulixcoulix
1031
asked Feb 18 '17 at 2:13
coulixcoulix
1031
1031
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
It seems to me, that problem is within your client, because Recv-Q for established connections is the count of bytes not copied by the user program connected to this socket. It means, your application does not read data from socket.
answered Feb 18 '17 at 10:00
GreyWolfGreyWolf
1363
add a comment |
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "106"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f345886%2fstalled-tcp-connection-with-data-in-recvq-and-established-off%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
It seems to me, that problem is within your client, because Recv-Q for established connections is the count of bytes not copied by the user program connected to this socket. It means, your application does not read data from socket.
answered Feb 18 '17 at 10:00
GreyWolfGreyWolf
1363
add a comment |
It seems to me, that problem is within your client, because Recv-Q for established connections is the count of bytes not copied by the user program connected to this socket. It means, your application does not read data from socket.
answered Feb 18 '17 at 10:00
GreyWolfGreyWolf
1363
add a comment |
It seems to me, that problem is within your client, because Recv-Q for established connections is the count of bytes not copied by the user program connected to this socket. It means, your application does not read data from socket.
answered Feb 18 '17 at 10:00
GreyWolfGreyWolf
1363
It seems to me, that problem is within your client, because Recv-Q for established connections is the count of bytes not copied by the user program connected to this socket. It means, your application does not read data from socket.
answered Feb 18 '17 at 10:00
GreyWolfGreyWolf
1363
answered Feb 18 '17 at 10:00
GreyWolfGreyWolf
1363
answered Feb 18 '17 at 10:00
GreyWolfGreyWolf
1363
answered Feb 18 '17 at 10:00
GreyWolfGreyWolf
1363
1363
add a comment |
add a comment |
Thanks for contributing an answer to Unix & Linux Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f345886%2fstalled-tcp-connection-with-data-in-recvq-and-established-off%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
