如果您对Windows下执行celery4.1报错Taskhandlerraisederror:ValueError(''notenoughvaluestounpack(exp...感兴趣，那么这篇文
如果您对Windows 下执行 celery4.1 报错 Task handler raised error: ValueError (''not enough values to unpack (exp...感兴趣，那么这篇文章一定是您不可错过的。我们将详细讲解Windows 下执行 celery4.1 报错 Task handler raised error: ValueError (''not enough values to unpack (exp...的各种细节，此外还有关于ajaxfileupload.js 报Uncaught TypeError: jQuery.handleError is not a function错误、alert日志报错：ERROR: failed to establish dependency between database RACDB and diskgroup resource ora...、Andrew Ng class2 week1：ValueError: c of shape (1, 300) not acceptable as a color sequence for x w...、Android studio 报错 Error:Internal error: (java.lang.ClassNotFoundException) com.google.wireless.and...的实用技巧。
本文目录一览：- Windows 下执行 celery4.1 报错 Task handler raised error: ValueError (''not enough values to unpack (exp...
- ajaxfileupload.js 报Uncaught TypeError: jQuery.handleError is not a function错误
- alert日志报错：ERROR: failed to establish dependency between database RACDB and diskgroup resource ora...
- Andrew Ng class2 week1：ValueError: c of shape (1, 300) not acceptable as a color sequence for x w...
- Android studio 报错 Error:Internal error: (java.lang.ClassNotFoundException) com.google.wireless.and...
Windows 下执行 celery4.1 报错 Task handler raised error: ValueError (''not enough values to unpack (exp...
错误信息如下所示，根据网上查找发现 celery4 版本起已经不支持 windows 了，所以会报此错误，解决方法
1 如果要用 windows 来实现的话，请降低版本到 3 版本
2 可以用 linux 系统 linux 系统支持 4.1 版本，不会发生如下错误
from celery import Celery
app = Celery(''tasks'',
broker=''redis://localhost'',
backend=''redis://localhost'')
@app.task
def add(x,y):
print("running...",x,y)
return x+y
windows 下报错信息如下
[2018-01-10 14:23:01,932: INFO/MainProcess] Received task: task.add[4d68d561-e835-4592-a4d4-0f4799700df8]
[2018-01-10 14:23:01,951: ERROR/MainProcess] Task handler raised error: ValueError(''not enough values to unpack (expected 3, got 0)'',)
Traceback (most recent call last):
File "d:\program files (x86)\python\python36\lib\site-packages\billiard\pool.py", line 358, in workloop
result = (True, prepare_result(fun(*args, **kwargs)))
File "d:\program files (x86)\python\python36\lib\site-packages\celery\app\trace.py", line 525, in _fast_trace_task
tasks, accept, hostname = _loc
ValueError: not enough values to unpack (expected 3, got 0)
[2018-01-10 14:25:54,285: INFO/MainProcess] Received task: task.add[e0593045-acb4-414d-ab6e-45ac7b636084]
[2018-01-10 14:25:57,287: ERROR/MainProcess] Task handler raised error: ValueError(''not enough values to unpack (expected 3, got 0)'',)
Traceback (most recent call last):
File "d:\program files (x86)\python\python36\lib\site-packages\billiard\pool.py", line 358, in workloop
result = (True, prepare_result(fun(*args, **kwargs)))
File "d:\program files (x86)\python\python36\lib\site-packages\celery\app\trace.py", line 525, in _fast_trace_task
tasks, accept, hostname = _loc
ValueError: not enough values to unpack (expected 3, got 0)
[2018-01-10 14:42:36,239: INFO/MainProcess] Received task: task.add[be45c703-b833-44c5-8f4f-7c81bbcc2cf0]
[2018-01-10 14:42:36,253: ERROR/MainProcess] Task handler raised error: ValueError(''not enough values to unpack (expected 3, got 0)'',)
Centos 7 下使用 celery4.1 可以正常执行
客户端
[python@qinhan file]$ python
Python 3.6.2 (default, Jan 10 2018, 16:15:47)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-16)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from task import add
>>> add.delay(5,7)
<AsyncResult: 598a600d-7b49-4ba4-8d7b-85692027b46d>
>>>
Celery 端
[root@qinhan file]# celery -A task worker --loglevel=info
/usr/local/python3/lib/python3.6/site-packages/celery/platforms.py:795: RuntimeWarning: You''re running the worker with superuser privileges: this is
absolutely not recommended!
Please specify a different user using the -u option.
User information: uid=0 euid=0 gid=0 egid=0
uid=uid, euid=euid, gid=gid, egid=egid,
-------------- celery@qinhan v4.1.0 (latentcall)
---- **** -----
--- * *** * -- Linux-3.10.0-327.el7.x86_64-x86_64-with-centos-7.2.1511-Core 2018-01-11 16:59:47
-- * - **** ---
- ** ---------- [config]
- ** ---------- .> app: tasks:0x7f4262d718d0
- ** ---------- .> transport: redis://localhost:6379//
- ** ---------- .> results: redis://localhost/
- *** --- * --- .> concurrency: 4 (prefork)
-- ******* ---- .> task events: OFF (enable -E to monitor tasks in this worker)
--- ***** -----
-------------- [queues]
.> celery exchange=celery(direct) key=celery
[tasks]
. task.add
[2018-01-11 16:59:47,385: INFO/MainProcess] Connected to redis://localhost:6379//
[2018-01-11 16:59:47,403: INFO/MainProcess] mingle: searching for neighbors
[2018-01-11 16:59:48,444: INFO/MainProcess] mingle: all alone
[2018-01-11 16:59:48,465: INFO/MainProcess] celery@qinhan ready.
[2018-01-11 17:06:57,465: INFO/MainProcess] Received task: task.add[598a600d-7b49-4ba4-8d7b-85692027b46d]
[2018-01-11 17:06:57,472: WARNING/ForkPoolWorker-1] running...
[2018-01-11 17:06:57,473: WARNING/ForkPoolWorker-1] 5
[2018-01-11 17:06:57,474: WARNING/ForkPoolWorker-1] 7
[2018-01-11 17:06:57,490: INFO/ForkPoolWorker-1] Task task.add[598a600d-7b49-4ba4-8d7b-85692027b46d] succeeded in 0.018820124001649674s: 12
ajaxfileupload.js 报Uncaught TypeError: jQuery.handleError is not a function错误
因为“handleError”函数是在低版本的jquery 中的函数，所以解决方案是从低版本中的jquery 中找到这个函数
handleError: function( s,xhr,status,e ) {
// If a local callback was specified,fire it
if ( s.error ) {
s.error.call( s.context || s,e );
}
// Fire the global callback
if ( s.global ) {
(s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError",[xhr,s,e] );
}
}
把这个函数加入ajaxfileupload.js中去，就不报错了。
jQuery.extend({
createUploadIframe: function(id,uri)
{
//create frame
var frameId = 'jUploadFrame' + id;
if(window.ActiveXObject) {
var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');
if(typeof uri== 'boolean'){
io.src = 'javascript:false';
}
else if(typeof uri== 'string'){
io.src = uri;
}
}
else {
var io = document.createElement('iframe');
io.id = frameId;
io.name = frameId;
}
io.style.position = 'absolute';
io.style.top = '-1000px';
io.style.left = '-1000px';
document.body.appendChild(io);
return io
},createUploadForm: function(id,fileElementId)
{
//create form
var formId = 'jUploadForm' + id;
var fileId = 'jUploadFile' + id;
var form = $('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
var oldElement = $('#' + fileElementId);
var newElement = $(oldElement).clone();
$(oldElement).attr('id',fileId);
$(oldElement).before(newElement);
$(oldElement).appendTo(form);
//set attributes
$(form).css('position','absolute');
$(form).css('top','-1200px');
$(form).css('left','-1200px');
$(form).appendTo('body');
return form;
},//就是这个函数。
handleError: function( s,e] );
}
},addOtherRequestsToForm: function(form,data)
{
// add extra parameter
var originalElement = $('<input type="hidden" name="" value="">');
for (var key in data) {
name = key;
value = data[key];
var cloneElement = originalElement.clone();
cloneElement.attr({'name':name,'value':value});
$(cloneElement).appendTo(form);
}
return form;
},ajaxFileUpload: function(s) {
// Todo introduce global settings,allowing the client to modify them for all requests,not only timeout
s = jQuery.extend({},jQuery.ajaxSettings,s);
var id = new Date().getTime()
var form = jQuery.createUploadForm(id,s.fileElementId);
if ( s.data ) form = jQuery.addOtherRequestsToForm(form,s.data);
var io = jQuery.createUploadIframe(id,s.secureuri);
var frameId = 'jUploadFrame' + id;
var formId = 'jUploadForm' + id;
// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
{
jQuery.event.trigger( "ajaxStart" );
}
var requestDone = false;
// Create the request object
var xml = {}
if ( s.global )
jQuery.event.trigger("ajaxSend",[xml,s]);
// Wait for a response to come back
var uploadCallback = function(isTimeout)
{
var io = document.getElementById(frameId);
try
{
if(io.contentwindow)
{
xml.responseText = io.contentwindow.document.body?io.contentwindow.document.body.innerHTML:null;
xml.responseXML = io.contentwindow.document.XMLDocument?io.contentwindow.document.XMLDocument:io.contentwindow.document;
}else if(io.contentDocument)
{
xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;
xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;
}
}catch(e)
{
jQuery.handleError(s,xml,null,e);
}
if ( xml || isTimeout == "timeout")
{
requestDone = true;
var status;
try {
status = isTimeout != "timeout" ? "success" : "error";
// Make sure that the request was successful or notmodified
if ( status != "error" )
{
// process the data (runs the xml through httpData regardless of callback)
var data = jQuery.uploadHttpData( xml,s.dataType );
// If a local callback was specified,fire it and pass it the data
if ( s.success )
s.success( data,status );
// Fire the global callback
if( s.global )
jQuery.event.trigger( "ajaxSuccess",s] );
} else
jQuery.handleError(s,status);
} catch(e)
{
status = "error";
jQuery.handleError(s,e);
}
// The request was completed
if( s.global )
jQuery.event.trigger( "ajaxComplete",s] );
// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );
// Process result
if ( s.complete )
s.complete(xml,status);
jQuery(io).unbind()
setTimeout(function()
{ try
{
$(io).remove();
$(form).remove();
} catch(e)
{
jQuery.handleError(s,e);
}
},100)
xml = null
}
}
// Timeout checker
if ( s.timeout > 0 )
{
setTimeout(function(){
// Check to see if the request is still happening
if( !requestDone ) uploadCallback( "timeout" );
},s.timeout);
}
try
{
// var io = $('#' + frameId);
var form = $('#' + formId);
$(form).attr('action',s.url);
$(form).attr('method','POST');
$(form).attr('target',frameId);
if(form.encoding)
{
form.encoding = 'multipart/form-data';
}
else
{
form.enctype = 'multipart/form-data';
}
$(form).submit();
} catch(e)
{
jQuery.handleError(s,e);
}
if(window.attachEvent){
document.getElementById(frameId).attachEvent('onload',uploadCallback);
}
else{
document.getElementById(frameId).addEventListener('load',uploadCallback,false);
}
return {abort: function () {}};
},uploadHttpData: function( r,type ) {
var data = !type;
data = type == "xml" || data ? r.responseXML : r.responseText;
// If the type is "script",eval it in global context
if ( type == "script" )
jQuery.globalEval( data );
// Get the JavaScript object,if JSON is used.
if ( type == "json" )
{
// If you add mimetype in your response,// you have to delete the '<pre></pre>' tag.
// The pre tag in Chrome has attribute,so have to use regex to remove
var data = r.responseText;
var rx = new RegExp("<pre.*?>(.*?)</pre>","i");
var am = rx.exec(data);
//this is the desired data extracted
var data = (am) ? am[1] : ""; //the only submatch or empty
eval( "data = " + data );
}
// evaluate scripts within html
if ( type == "html" )
jQuery("<div>").html(data).evalScripts();
//alert($('param',data).each(function(){alert($(this).attr('value'));}));
return data;
}
})
alert日志报错：ERROR: failed to establish dependency between database RACDB and diskgroup resource ora...
一。打开数据库alert日志，发现有报错
ERROR: failed to establish dependency between database RACDB and diskgroup resource ora.DATA.dg
二。上mos查看（是一个BUG,无害）
This error is harmless.
It is documented in the internal Bug 8304720 "ERROR: FAILED TO ESTABLISH DEPENDENCY BETWEEN DB & DISKGROUP"
三。解决
$ srvctl modify database -d <db_unique_name> -a "<diskgroup_list>"
我自己的库只有DATA和OCR两个磁盘组，所以执行一下命令：
srvctl modify database -d RACDB -a "DATA,OCR"
Andrew Ng class2 week1：ValueError: c of shape (1, 300) not acceptable as a color sequence for x w...
最后一行改成这个：
plot_decision_boundary(lambda x: predict_dec(parameters, x.T), train_X, np.squeeze(train_Y))
Android studio 报错 Error:Internal error: (java.lang.ClassNotFoundException) com.google.wireless.and...
Android studio 运行 make build 报错
解决方法
在 studio 的 File-->Settings-->Build, Execution, Deployment---> Java Compiler 选项中，
将 javac 改为 eclipse，最后 apply 一下，如图
今天关于Windows 下执行 celery4.1 报错 Task handler raised error: ValueError (''not enough values to unpack (exp...的分享就到这里，希望大家有所收获，若想了解更多关于ajaxfileupload.js 报Uncaught TypeError: jQuery.handleError is not a function错误、alert日志报错：ERROR: failed to establish dependency between database RACDB and diskgroup resource ora...、Andrew Ng class2 week1：ValueError: c of shape (1, 300) not acceptable as a color sequence for x w...、Android studio 报错 Error:Internal error: (java.lang.ClassNotFoundException) com.google.wireless.and...等相关知识，可以在本站进行查询。
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