connect

Connection of pure virtual signal of interface class

匿名 (未验证) 提交于 2019-12-03 08:57:35
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I want to connect some object's signals derived from an interface class. The connection is done in QWidget::listenToAnimal(AnimalInterface*) . This does not work because qt_metacall is not a member of 'AnimalInterface' and static assertion failed: No Q_OBJECT in the class with the signal . Of course AnimalInterface does not have the Q_OBJECT macro and does not inherit QObject because it is an interface... I want to connect through the interface class because I do not want to manually retype the same code for Cat and for Dog . Is it possible

Invalid name provided (Mechanism level: KrbException: Cannot locate default realm) in groovy script

匿名 (未验证) 提交于 2019-12-03 08:57:35
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: i have a groovy script that connect to MSSQL database, a few week ago it works very nice, but today i had upload a last version of mac os, and my script give me this exception: Caught: java.sql.SQLException: I/O Error: GSS Failed: Invalid name provided (Mechanism level: KrbException: Cannot locate default realm) java.sql.SQLException: I/O Error: GSS Failed: Invalid name provided (Mechanism level: KrbException: Cannot locate default realm) at net.sourceforge.jtds.jdbc.TdsCore.login(TdsCore.java:654) at net.sourceforge.jtds.jdbc.JtdsConnection

MongoEngine and dealing with “UserWarning: MongoClient opened before fork. Create MongoClient with connect=False, or create client after forking”

匿名 (未验证) 提交于 2019-12-03 08:57:35
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am using Celery and MongoEngine as part of my Django App with. I am getting this warning, when a celery @shared_task accesses the mongodb database via mongoengine model classes: UserWarning: MongoClient opened before fork. Create MongoClient with connect=False,or create client after forking. See PyMongo's documentation for details: http://api.mongodb.org/python/current/faq.html#using-pymongo-with-multiprocessing It clearly has something to do with multiprocessing and pyMongo that is that mongoengine is based on. My question is: What is the

MongoConnectionException - Failed to connect to: localhost:27017 [closed]

匿名 (未验证) 提交于 2019-12-03 08:54:24
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I used the following PHP code to connect to MongoDB: $m = new MongoClient("mongodb://localhost:27017"); However, I am getting the following error: Fatal error: Uncaught exception 'MongoConnectionException' with message 'Failed to connect to: localhost:27017: Unknown error' I tried lot of connection string possibilities that are posted in various blogs; nothing helps. Does anyone have any ideas? 回答1: If anybody has this issue, refer the following links first. Connection String URI Format PHP MongoClient In my case McAfee firewall leads to

Unable to tunnel through proxy. Proxy returns HTTP/1.1 503 Service Unavailable

匿名 (未验证) 提交于 2019-12-03 08:54:24
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I want to connect to an intranet server, the url that I need to connect is: URLConnection conn = new URL("https://mywebsite").openConnection(); When I reach to the connect method call through:` conn.connect(); I'm getting the following exception: java.io.IOException: Unable to tunnel through proxy. Proxy rerurns HTTP/1.1 503 Service Unavailable" at sun.net.www.protocol.httpHttpURLConnection.doTunneling How can I solve this exception, I have tried many solutions published on the net, but without any luck. 文章来源: Unable to tunnel through proxy.

commons net ftp deadlock?

匿名 (未验证) 提交于 2019-12-03 08:52:47
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a process that is supposed to ftp a file to a remote location every 5 minutes. It seems to have become stuck for a number of hours and hasn't been sending files. I took a thread dump to see what was going on and this is the state of my thread: "SPPersister" prio = 6 tid = 0x03782400 nid = 0x16c4 runnable [ 0x0468f000 .. 0x0468fd14 ] java . lang . Thread . State : RUNNABLE at java . net . SocketInputStream . socketRead0 ( Native Method ) at java . net . SocketInputStream . read ( Unknown Source ) at sun . nio . cs .

Linux - TCP connect() failure with ETIMEDOUT

匿名 (未验证) 提交于 2019-12-03 08:52:47
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: For a TCP client connect() call to a TCP server.. If the client TCP receives no response to its SYN segment, ETIMEDOUT is returned. 4.4BSD, for example, sends one SYN when connect is called, another 6 seconds later, and another 24 seconds later (p. 828 of TCPv2). If no response is received after a total of 75 seconds, the error is returned. In Linux I would like know what is the retry mechanism (how many times and how far apart). Asking because for a TCP client connect() call I am getting ETIMEDOUT error. This socket has O_NONBLOCK option

No network connection - Android-x86 on VMWare Fusion

匿名 (未验证) 提交于 2019-12-03 08:52:47
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm trying to come up with some kind of Android environment to use for development on Mac OSX. It's proving quite difficult ( Android emulator laggy on Mac ). On my macbook the Android emulator is so slow that it is unusable. Note, I'm trying to build a tablet app, which seems to make things worse. So far the best performance I've found is just running the x 8 6 port of Android via VMWare fusion. The only problem is the darn thing keeps giving a "No network connection" message. I don't know much about VMWare, but I'm guessing that

Jenkins with Tomcat - Failed to connect to repository : Could not init

匿名 (未验证) 提交于 2019-12-03 08:52:47
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Issue: I have setup Jenkins v1.605 hosted with Apache Tomcat 7.0.59 on Windows 7 SP1 x64 behind a corporate proxy I configured JDK, Git and maven installation paths in Jenkins. Also configured the proxy under the Advanced tab in Manage Plugins I have a Java project on Eclipse that I have hosted on a Bitbucket repository using the EGit plugin and I am trying to connect it to Jenkins over https I created a new job in Jenkins, added the repository URL (https://@bitbucket.org//.git) and added my credentials in the next step. This is where I get

Azure Kubernetes: TLS handshake timeout

匿名 (未验证) 提交于 2019-12-03 08:52:47
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I created a new cluster as per the Azure guide and created the cluster without issue but when I enter the kubectl get nodes to list the nodes I only get this response Unable to connect to the server: net/http: TLS handshake timeout . I tried once in the Cloud Shell and once on my machine using the latest version of the Azure CLI (2.0.20). I saw that there was a similar earlier issue regarding Service Principal credentials , which I updated but that didn't seem to solve my issue either. Any guidance would be greatly appreciated. 回答1: Piling