Sorry for delayed reply. We are using a CoreDNS plugin in our application. I checked the binary using otool, and I don't see it linking against AppKit. Here’s the otool -L output for our coredns binary: ─    ~/B1E/VirtualBucket_atcapi/VB_7Jan/atc.api.service    vb_latest ················································································································ ✔  07:45:57 PM  ─╮ ╰─ otool -L /Applications/Infoblox/BloxOne\ Endpoint.app/Contents/MacOS/coredns ─╯ /Applications/Infoblox/BloxOne Endpoint.app/Contents/MacOS/coredns (architecture x86_64): /usr/lib/libSystem.B.dylib (compatibility version 0.0.0, current version 0.0.0) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 0.0.0, current version 0.0.0) /System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 0.0.0, current version 0.0.0) /Applications/Infoblox/BloxOne Endpoint.app/Contents/MacOS/coredns (architecture arm64): /usr/lib/libSystem.B.dylib (compatibility version 0.0.0, current version 0.0.0) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 0.0.0, current version 0.0.0) /System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 0.0.0, current version 0.0.0) As you can see, AppKit is not listed among the linked frameworks. At this point, I am unsure how to proceed with debugging this issue.

/Applications/Infoblox/BloxOne Endpoint.app/Contents/MacOS/infoblox_rc_service (architecture x86_64): @executable_path/libcurl.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libcares.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork (compatibility version 1.0.0, current version 1406.0.4) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0) /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration (compatibility version 1.0.0, current version 1241.100.11) /System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 1.0.0, current version 60420.101.2) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 1971.0.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 1500.65.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1319.100.3) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1971.0.0) /Applications/Infoblox/BloxOne Endpoint.app/Contents/MacOS/infoblox_rc_service (architecture arm64): @executable_path/libcurl.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libcares.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork (compatibility version 1.0.0, current version 1406.0.4) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0) /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration (compatibility version 1.0.0, current version 1241.100.11) /System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 1.0.0, current version 60420.101.2) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 1971.0.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 1500.65.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1319.100.3) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1971.0.0)

Even after removing link to AppKit I see the app going to Not Responding state. Here is the otool output ╰─ otool -L /Applications/Infoblox/BloxOne\ Endpoint.app/Contents/MacOS/infoblox_rc_service ─╯ /Applications/Infoblox/BloxOne Endpoint.app/Contents/MacOS/infoblox_rc_service (architecture x86_64): @executable_path/libcurl.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libcares.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork (compatibility version 1.0.0, current version 1406.0.4) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0) /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration (compatibility version 1.0.0, current version 1241.100.11) /System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 1.0.0, current version 60420.101.2) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 1971.0.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 1500.65.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1319.100.3) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1971.0.0) /Applications/Infoblox/BloxOne Endpoint.app/Contents/MacOS/infoblox_rc_service (architecture arm64): @executable_path/libcurl.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libcares.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork (compatibility version 1.0.0, current version 1406.0.4) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0) /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration (compatibility version 1.0.0, current version 1241.100.11) /System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 1.0.0, current version 60420.101.2) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 1971.0.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 1500.65.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1319.100.3) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1971.0.0)

Here is the output of otool /Applications/Infoblox/BloxOne Endpoint.app/Contents/MacOS/infoblox_rc_service (architecture x86_64): @executable_path/libcurl.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libcares.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit (compatibility version 45.0.0, current version 2299.50.120) /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork (compatibility version 1.0.0, current version 1406.0.4) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0) /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration (compatibility version 1.0.0, current version 1241.100.11) /System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 1.0.0, current version 60420.101.2) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 1971.0.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 1500.65.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1319.100.3) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1971.0.0) /Applications/Infoblox/BloxOne Endpoint.app/Contents/MacOS/infoblox_rc_service (architecture arm64): @executable_path/libcurl.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libcares.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit (compatibility version 45.0.0, current version 2299.50.120) /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork (compatibility version 1.0.0, current version 1406.0.4) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0) /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration (compatibility version 1.0.0, current version 1241.100.11) /System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 1.0.0, current version 60420.101.2) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 1971.0.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 1500.65.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1319.100.3) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1971.0.0)

Any update on the above query?

Thank you for your response! rc_service_infoblox is launched using launchd via a launch daemon. We implement a message queue communication system between our controller application and rc_service_infoblox to monitor status. The controller checks the service status by posting messages to this queue, and rc_service_infoblox responds with status updates when it receives these messages. Interestingly, this "Not Responding" issue occurs most frequently when the system wakes from sleep. The service continues to function normally despite showing this status in Activity Monitor.