I am running my UI Tests on Github CI and the tests are flaky. I don't understand how I can fix it. The animations are disabled and I am running the tests on a iPhone 13 plus. A lot of tests are running green, but some are not working. Locally, I got everything working.
These are some logs:
2022-06-21T13:42:23.2627250Z t = 63.34s Tap Cell
2022-06-21T13:42:23.2707530Z t = 63.34s Wait for com.project.project to idle
2022-06-21T13:42:23.2733620Z t = 63.41s Unable to monitor event loop
2022-06-21T13:42:23.2734250Z t = 63.41s Unable to monitor animations
2022-06-21T13:42:23.2734800Z t = 63.42s Find the Cell
2022-06-21T13:42:24.1158670Z t = 64.45s Find the Cell (retry 1)
2022-06-21T13:42:24.1287900Z t = 64.45s Collecting extra data to assist test failure triage
2022-06-21T13:42:24.2022460Z /Users/runner/work/project/UITestCase.swift:665: error: -[project.UserTagTest testTapInTextView] : Failed to get matching snapshot: Lost connection to the application (pid 12676). (Underlying Error: Couldn’t communicate with a helper application. Try your operation again. If that fails, quit and relaunch the application and try again. The connection to service created from an endpoint was invalidated: failed to check-in, peer may have been unloaded: mach_error=10000003.)
It can not find the cell because of these logs:
Unable to monitor event loop
Unable to monitor animations
I know this because I sometimes get different errors than the error above, which says that the connection to the application is lost, right below the Unable to monitor... error logging.
Is there anything I can try? I don't have a reproduction project. This is the command that is executed:
xcodebuild test -project project.xcodeproj -scheme project-iosUITests -destination 'platform=iOS Simulator,name=iPhone 13 Pro,OS=15.5'
The CI runs 35 tests and 5 fails randomly with the Unable to errors. Is there any suggestion to fix this problem?
We have a running TwinCat project on a PC. After the restart of the machine, the following error occurs when i try to run the project in "Run Mode" or try Online Reset.
Errors:
Type Server (Port) Timestamp Message
Error (65535) 'Term 29 (EK1100)' (1006): state change aborted (requested 'PREOP', back to 'INIT').
Error (65535) 'Term 29 (EK1100)' (1006): 'INIT to PREOP' failed! Error: 'check product code'. Device 'EL1014-XXXX-XXXX' found and 'EK1100-0000-0018' expected.
Warning (65535) 'Term 33 (EL1014) (1010) - Term 34 (EL1014) (1011)' Communication interrupted
Warning (65535) 'Term 35 (EK1100) (1012) - Term 43 (EL1014) (1020)' Communication interrupted
Tree structure
Online State
The EK1100 and EL1014 were changed, but the error stays. Please, can you suggest a fix for this problem?
Very likely the problem is that the configured ethercat tree structure does not match the one found.
As you can see the Ethercat master expects 'EK1100-0000-0018' but finds 'EL1014-XXXX-XXXX'
Rescan you ethercat tree from the system manager and see if the configured and the found hardware-configuration matches.
Correct your ethercat configuration if you notice errors and reactivate the project.
Specifically take a look at TERM29.
There you can probably find the source of your error.
Either a wrong card has been swapped or the ethercat connection is faulty there.
I have been working with HFC SDK for Node.js and it used to work, but since last night I am having some problems.
When running helloblockchain.js only few times works, most time I get this error when it tries to enroll a new user:
E0113 11:56:05.983919636 5288 handshake.c:128] Security handshake failed: {"created":"#1484304965.983872199","description":"Handshake read failed","file":"../src/core/lib/security/transport/handshake.c","file_line":237,"referenced_errors":[{"created":"#1484304965.983866102","description":"FD shutdown","file":"../src/core/lib/iomgr/ev_epoll_linux.c","file_line":948}]}
Error: Failed to register and enroll JohnDoe: Error
Other times, the enroll works and the failure appears deploying the chaincode:
Enrolled and registered JohnDoe successfully
Deploying chaincode ...
E0113 12:14:27.341527043 5455 handshake.c:128] Security handshake failed: {"created":"#1484306067.341430168","description":"Handshake read failed","file":"../src/core/lib/security/transport/handshake.c","file_line":237,"referenced_errors":[{"created":"#1484306067.341421859","description":"FD shutdown","file":"../src/core/lib/iomgr/ev_epoll_linux.c","file_line":948}]}
Failed to deploy chaincode: request={"fcn":"init","args":["a","100","b","200"],"chaincodePath":"chaincode","certificatePath":"/certs/peer/cert.pem"}, error={"error":{"code":14,"metadata":{"_internal_repr":{}}},"msg":"Error"}
Or:
Enrolled and registered JohnDoe successfully
Deploying chaincode ...
E0113 12:15:27.448867739 5483 handshake.c:128] Security handshake failed: {"created":"#1484306127.448692244","description":"Handshake read failed","file":"../src/core/lib/security/transport/handshake.c","file_line":237,"referenced_errors":[{"created":"#1484306127.448668047","description":"FD shutdown","file":"../src/core/lib/iomgr/ev_epoll_linux.c","file_line":948}]}
events.js:160
throw er; // Unhandled 'error' event
^
Error
at ClientDuplexStream._emitStatusIfDone (/usr/lib/node_modules/hfc/node_modules/grpc/src/node/src/client.js:189:19)
at ClientDuplexStream._readsDone (/usr/lib/node_modules/hfc/node_modules/grpc/src/node/src/client.js:158:8)
at readCallback (/usr/lib/node_modules/hfc/node_modules/grpc/src/node/src/client.js:217:12)
E0113 12:15:27.563487641 5483 handshake.c:128] Security handshake failed: {"created":"#1484306127.563437122","description":"Handshake read failed","file":"../src/core/lib/security/transport/handshake.c","file_line":237,"referenced_errors":[{"created":"#1484306127.563429661","description":"FD shutdown","file":"../src/core/lib/iomgr/ev_epoll_linux.c","file_line":948}]}
This code worked yesterday, so I don't know what could be happening.
Does anybody know how can I fix it?
Thanks,
Javier.
ibm-bluemix
blockchain
These types of intermittent issues are usually related to GRPC. An initial suggestion is to ensure that you are using at least GRPC version 1.0.0.
If you are using a Mac, then the maximum number of open file descriptors should be checked (using ulimit -n). Sometimes this is initially set to a low value such as 256, so increasing the value could help.
There are a couple of GRPC issues with similar symptoms.
https://github.com/grpc/grpc/issues/8732
https://github.com/grpc/grpc/issues/8839
https://github.com/grpc/grpc/issues/8382
There is a grpc.initial_reconnect_backoff_ms property that is mentioned in some of these issues. Increasing the value past the 1000 ms level might help reduce the frequency of issues. Below are instructions for how the helloblockchain.js file can be modified to set this property to a higher value.
Open the helloblockchain.js file in the Hyperledger Fabric Client example and find the enrollAndRegisterUsers function.
Add “grpc.initial_reconnect_backoff_ms": 5000 to the setMemberServicesUrl call.
chain.setMemberServicesUrl(ca_url, {
pem: cert, "grpc.initial_reconnect_backoff_ms": 5000
});
Add “grpc.initial_reconnect_backoff_ms": 5000 to the addPeer call.
chain.addPeer("grpcs://" + peers[i].discovery_host + ":" + peers[i].discovery_port,
{pem: cert, "grpc.initial_reconnect_backoff_ms": 5000
});
Note that setting the grpc.initial_reconnect_backoff_ms property may reduce the frequency of issues, but it will not necessarily eliminate all issues.
The connection to the eventhub that is made in the helloblockchain.js file can also be a factor. There is an earlier version of the Hyperledger Fabric Client that does not utilize the eventhub. This earlier version could be tried to determine if this makes a difference. After running git clone https://github.com/IBM-Blockchain/SDK-Demo.git, run git checkout b7d5195 to use this prior level. Before running node helloblockchain.js from a Node.js command window, the git status command can be used to check the code level that is being used.
I was following the processes in this very helpful post:
How do I run a Play Framework 2.0 application as a Windows service?
when I ran into trouble in Step 9. When I execute runConsole.bat, the service cycles between the running and restarting states. The full log is here:
wrapper.log
but what jumps out at me in the log are the following:
INFO|7268/0|play.core.server.NettyServer|13-12-28 13:07:28|Oops, cannot start the server.
INFO|7268/0|play.core.server.NettyServer|13-12-28 13:07:28|Configuration error: Configuration error[Cannot connect to database [default]]
...
INFO|7268/0|play.core.server.NettyServer|13-12-28 13:07:28|Caused by: org.h2.jdbc.JdbcSQLException: Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode [90020-168]
...
INFO|wrapper|play.core.server.NettyServer|13-12-28 13:07:28|restart process due to default exit code rule
INFO|wrapper|play.core.server.NettyServer|13-12-28 13:07:28|restart internal RUNNING
INFO|wrapper|play.core.server.NettyServer|13-12-28 13:07:28|stopping process with pid/timeout 7268 45000
INFO|wrapper|play.core.server.NettyServer|13-12-28 13:07:30|process exit code: -1
...
INFO|7812/1|play.core.server.NettyServer|13-12-28 13:07:45|[error] c.j.b.h.AbstractConnectionHook - Failed to obtain initial connection Sleeping for 0ms and trying again. Attempts left: 0. Exception: null
INFO|7812/1|play.core.server.NettyServer|13-12-28 13:07:45|Oops, cannot start the server.
INFO|7812/1|play.core.server.NettyServer|13-12-28 13:07:45|Configuration error: Configuration error[Cannot connect to database [default]]
repeats several times...
Half way through writing this post, I realized that before step 9., you should terminate the start.bat script which you start up in step 6. When I did this, runConsole.bat would execute normally without all the errors I list above.
Symptom: ClickOnce installation starts and stops after around 600 kB (out of 2 MB).
Progress bar always stops at the same value (tried ten times).
Error log says that The operation has timed out (in inner exception) and fails with "DeploymentDownloadException (Unknown subtype)".
Error log details (irrelevant information trimmed):
ERROR DETAILS
Following errors were detected during this operation.
System.Deployment.Application.DeploymentDownloadException (Unknown subtype)
- Downloading http://fullpath/name.dll.deploy did not succeed.
- Source: System.Deployment
- Stack trace: at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(Downloa
dQueueItem next)
at
System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
at
System.Deployment.Application.FileDownloader.Download(SubscriptionState
subState)
--- Inner Exception ---
System.Net.WebException
- The operation has timed out.
- Source: System
- Stack trace:
at System.Net.ConnectStream.Read(Byte[] buffer,
Int32 offset, Int32 size)
at
System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(Downloa
dQueueItem next)
This only happens for two customers. The install works OK for thousands of others. I have found numerous posts via google with no answer or generic "firewall is the issue" or "customer was using dialup".
Has anyone solved this? Is this a ClickOnce bug?
Disabling firewall software on the machine did not help because a hardware firewall installed on the network was the cause (FortiGate 30B).
I doubt that it's a bug. However, it seems like it gets stuck at one file in the deployment path. Maybe it is a type of file that is blocked by a firewall.
I would just remove all files but one from the build and see if that gets downloaded ok, and then add the rest of the files one by one (or maybe type by type) and see at what file ClickOnce gets stuck downloading.
If that doesn't seem to do anything, I'd build a dummy app and deploy it with ClickOnce and see if it installs at all on the customer's box.