Long Polling with infinite loop making site slow (localhost)
0
So I'm trying to long poll for new database rows using an infinite loop which breaks and sends the data to server. But the infinite loop is slowing the xampp server and making the website take 20-30 seconds to respond. Is it just happening in xampp or would it happen in a real live server too?
Also, is there a better way to implement long polling?
Here is my server script.
set_time_limit(0);
$result =mysqli_query($connect, "SELECT * FROM userss WHERE email='$mail'");
$d=mysqli_fetch_assoc($result);
$lnote=$d['last_note'];
$data=array();
while(true)
$result =mysqli_query($connect, "SELECT * FROM notifications WHERE recipient='$mail' AND note_id > '$lnote'");
while ($rows=mysqli_fetch_assoc($result))
$data = $rows;
$nid=$rows['note_id'];
if($data!=null)
echo json_encode($data);
$update="UPDATE userss SET last_note='$nid' WHERE email='$mail'";
mysqli_query($connect,$update);
break;
sleep(10);
?>
php server xampp
asked Nov 13 '18 at 13:49
Ali KabeerAli Kabeer
11
add a comment |
0
So I'm trying to long poll for new database rows using an infinite loop which breaks and sends the data to server. But the infinite loop is slowing the xampp server and making the website take 20-30 seconds to respond. Is it just happening in xampp or would it happen in a real live server too?
Also, is there a better way to implement long polling?
Here is my server script.
set_time_limit(0);
$result =mysqli_query($connect, "SELECT * FROM userss WHERE email='$mail'");
$d=mysqli_fetch_assoc($result);
$lnote=$d['last_note'];
$data=array();
while(true)
$result =mysqli_query($connect, "SELECT * FROM notifications WHERE recipient='$mail' AND note_id > '$lnote'");
while ($rows=mysqli_fetch_assoc($result))
$data = $rows;
$nid=$rows['note_id'];
if($data!=null)
echo json_encode($data);
$update="UPDATE userss SET last_note='$nid' WHERE email='$mail'";
mysqli_query($connect,$update);
break;
sleep(10);
?>
php server xampp
asked Nov 13 '18 at 13:49
Ali KabeerAli Kabeer
11
1
look into using ajax or sockets, instead of an infinite loop.
– coderodour
Nov 13 '18 at 14:12
I am using ajax to send the request and as you can see, the request stays until the data is found. Although, I have found that even an empty infinite loop is enough to make the website slow as hell. How else do they long poll if not with an infinite loop?
– Ali Kabeer
Nov 13 '18 at 14:19
This will help you out. stackoverflow.com/questions/333664/…
– Sayed Mohd Ali
Nov 13 '18 at 14:22
Even in the examples people are giving, some sort of infinite loop is used with or without a timestamp. But it's just not working for me.
– Ali Kabeer
Nov 13 '18 at 16:03
add a comment |
0
0
0
So I'm trying to long poll for new database rows using an infinite loop which breaks and sends the data to server. But the infinite loop is slowing the xampp server and making the website take 20-30 seconds to respond. Is it just happening in xampp or would it happen in a real live server too?
Also, is there a better way to implement long polling?
Here is my server script.
set_time_limit(0);
$result =mysqli_query($connect, "SELECT * FROM userss WHERE email='$mail'");
$d=mysqli_fetch_assoc($result);
$lnote=$d['last_note'];
$data=array();
while(true)
$result =mysqli_query($connect, "SELECT * FROM notifications WHERE recipient='$mail' AND note_id > '$lnote'");
while ($rows=mysqli_fetch_assoc($result))
$data = $rows;
$nid=$rows['note_id'];
if($data!=null)
echo json_encode($data);
$update="UPDATE userss SET last_note='$nid' WHERE email='$mail'";
mysqli_query($connect,$update);
break;
sleep(10);
?>
php server xampp
asked Nov 13 '18 at 13:49
Ali KabeerAli Kabeer
11
So I'm trying to long poll for new database rows using an infinite loop which breaks and sends the data to server. But the infinite loop is slowing the xampp server and making the website take 20-30 seconds to respond. Is it just happening in xampp or would it happen in a real live server too?
Also, is there a better way to implement long polling?
Here is my server script.
set_time_limit(0);
$result =mysqli_query($connect, "SELECT * FROM userss WHERE email='$mail'");
$d=mysqli_fetch_assoc($result);
$lnote=$d['last_note'];
$data=array();
while(true)
$result =mysqli_query($connect, "SELECT * FROM notifications WHERE recipient='$mail' AND note_id > '$lnote'");
while ($rows=mysqli_fetch_assoc($result))
$data = $rows;
$nid=$rows['note_id'];
if($data!=null)
echo json_encode($data);
$update="UPDATE userss SET last_note='$nid' WHERE email='$mail'";
mysqli_query($connect,$update);
break;
sleep(10);
?>
php server xampp
php server xampp
asked Nov 13 '18 at 13:49
Ali KabeerAli Kabeer
11
asked Nov 13 '18 at 13:49
Ali KabeerAli Kabeer
11
asked Nov 13 '18 at 13:49
Ali KabeerAli Kabeer
11
asked Nov 13 '18 at 13:49
Ali KabeerAli Kabeer
11
asked Nov 13 '18 at 13:49
Ali KabeerAli Kabeer
11
11
1
look into using ajax or sockets, instead of an infinite loop.
– coderodour
Nov 13 '18 at 14:12
I am using ajax to send the request and as you can see, the request stays until the data is found. Although, I have found that even an empty infinite loop is enough to make the website slow as hell. How else do they long poll if not with an infinite loop?
– Ali Kabeer
Nov 13 '18 at 14:19
This will help you out. stackoverflow.com/questions/333664/…
– Sayed Mohd Ali
Nov 13 '18 at 14:22
Even in the examples people are giving, some sort of infinite loop is used with or without a timestamp. But it's just not working for me.
– Ali Kabeer
Nov 13 '18 at 16:03
add a comment |
1
look into using ajax or sockets, instead of an infinite loop.
– coderodour
Nov 13 '18 at 14:12
I am using ajax to send the request and as you can see, the request stays until the data is found. Although, I have found that even an empty infinite loop is enough to make the website slow as hell. How else do they long poll if not with an infinite loop?
– Ali Kabeer
Nov 13 '18 at 14:19
This will help you out. stackoverflow.com/questions/333664/…
– Sayed Mohd Ali
Nov 13 '18 at 14:22
Even in the examples people are giving, some sort of infinite loop is used with or without a timestamp. But it's just not working for me.
– Ali Kabeer
Nov 13 '18 at 16:03
1
1
look into using ajax or sockets, instead of an infinite loop.
– coderodour
Nov 13 '18 at 14:12
look into using ajax or sockets, instead of an infinite loop.
– coderodour
Nov 13 '18 at 14:12
I am using ajax to send the request and as you can see, the request stays until the data is found. Although, I have found that even an empty infinite loop is enough to make the website slow as hell. How else do they long poll if not with an infinite loop?
– Ali Kabeer
Nov 13 '18 at 14:19
I am using ajax to send the request and as you can see, the request stays until the data is found. Although, I have found that even an empty infinite loop is enough to make the website slow as hell. How else do they long poll if not with an infinite loop?
– Ali Kabeer
Nov 13 '18 at 14:19
This will help you out. stackoverflow.com/questions/333664/…
– Sayed Mohd Ali
Nov 13 '18 at 14:22
This will help you out. stackoverflow.com/questions/333664/…
– Sayed Mohd Ali
Nov 13 '18 at 14:22
Even in the examples people are giving, some sort of infinite loop is used with or without a timestamp. But it's just not working for me.
– Ali Kabeer
Nov 13 '18 at 16:03
Even in the examples people are giving, some sort of infinite loop is used with or without a timestamp. But it's just not working for me.
– Ali Kabeer
Nov 13 '18 at 16:03
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
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: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
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
);
);
draft saved
draft discarded
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%2fstackoverflow.com%2fquestions%2f53282505%2flong-polling-with-infinite-loop-making-site-slow-localhost%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- 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.
draft saved
draft discarded
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%2fstackoverflow.com%2fquestions%2f53282505%2flong-polling-with-infinite-loop-making-site-slow-localhost%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
1
look into using ajax or sockets, instead of an infinite loop.
– coderodour
Nov 13 '18 at 14:12
I am using ajax to send the request and as you can see, the request stays until the data is found. Although, I have found that even an empty infinite loop is enough to make the website slow as hell. How else do they long poll if not with an infinite loop?
– Ali Kabeer
Nov 13 '18 at 14:19
This will help you out. stackoverflow.com/questions/333664/…
– Sayed Mohd Ali
Nov 13 '18 at 14:22
Even in the examples people are giving, some sort of infinite loop is used with or without a timestamp. But it's just not working for me.
– Ali Kabeer
Nov 13 '18 at 16:03