Backend DevelopmentGolangHow Can I Keep Child Processes Running After the Systemd-Managed Parent Process Exits?How Can I Keep Child Processes Running After the Systemd-Managed Parent Process Exits?
Can't Detach Child Process when Main Process is Started from Systemd
When running a main process that spawns child processes, it's desirable to have the child processes survive even if the main process restarts or dies. This behavior works as expected when running the main process from a terminal, as demonstrated in the provided example with the exectest program.
However, when the main process is started via Systemd using a service file, the child processes do not survive beyond the lifetime of the main process. This happens because Systemd manages processes in a control group, and by default, it cleans up any child processes upon the parent process's termination.
To resolve this issue, the KillMode setting in the Systemd service definition can be modified. By default, KillMode is set to control-group, but changing it to process will ensure that only the main process is killed, allowing its child processes to continue running.
The updated service file would include the following line:
KillMode=process
With this setting in place, the child processes of exectest will survive even when the main process is killed or restarted via Systemd.
The above is the detailed content of How Can I Keep Child Processes Running After the Systemd-Managed Parent Process Exits?. For more information, please follow other related articles on the PHP Chinese website!
String Manipulation in Go: Mastering the 'strings' PackageMay 14, 2025 am 12:19 AMMastering the strings package in Go language can improve text processing capabilities and development efficiency. 1) Use the Contains function to check substrings, 2) Use the Index function to find the substring position, 3) Join function efficiently splice string slices, 4) Replace function to replace substrings. Be careful to avoid common errors, such as not checking for empty strings and large string operation performance issues.
Go 'strings' package tips and tricksMay 14, 2025 am 12:18 AMYou should care about the strings package in Go because it simplifies string manipulation and makes the code clearer and more efficient. 1) Use strings.Join to efficiently splice strings; 2) Use strings.Fields to divide strings by blank characters; 3) Find substring positions through strings.Index and strings.LastIndex; 4) Use strings.ReplaceAll to replace strings; 5) Use strings.Builder to efficiently splice strings; 6) Always verify input to avoid unexpected results.
'strings' Package in Go: Your Go-To for String OperationsMay 14, 2025 am 12:17 AMThestringspackageinGoisessentialforefficientstringmanipulation.1)Itofferssimpleyetpowerfulfunctionsfortaskslikecheckingsubstringsandjoiningstrings.2)IthandlesUnicodewell,withfunctionslikestrings.Fieldsforwhitespace-separatedvalues.3)Forperformance,st
Go bytes package vs strings package: Which should I use?May 14, 2025 am 12:12 AMWhendecidingbetweenGo'sbytespackageandstringspackage,usebytes.Bufferforbinarydataandstrings.Builderforstringoperations.1)Usebytes.Bufferforworkingwithbyteslices,binarydata,appendingdifferentdatatypes,andwritingtoio.Writer.2)Usestrings.Builderforstrin
How to use the 'strings' package to manipulate strings in Go step by stepMay 13, 2025 am 12:12 AMGo's strings package provides a variety of string manipulation functions. 1) Use strings.Contains to check substrings. 2) Use strings.Split to split the string into substring slices. 3) Merge strings through strings.Join. 4) Use strings.TrimSpace or strings.Trim to remove blanks or specified characters at the beginning and end of a string. 5) Replace all specified substrings with strings.ReplaceAll. 6) Use strings.HasPrefix or strings.HasSuffix to check the prefix or suffix of the string.
Go strings package: how to improve my code?May 13, 2025 am 12:10 AMUsing the Go language strings package can improve code quality. 1) Use strings.Join() to elegantly connect string arrays to avoid performance overhead. 2) Combine strings.Split() and strings.Contains() to process text and pay attention to case sensitivity issues. 3) Avoid abuse of strings.Replace() and consider using regular expressions for a large number of substitutions. 4) Use strings.Builder to improve the performance of frequently splicing strings.
What are the most useful functions in the GO bytes package?May 13, 2025 am 12:09 AMGo's bytes package provides a variety of practical functions to handle byte slicing. 1.bytes.Contains is used to check whether the byte slice contains a specific sequence. 2.bytes.Split is used to split byte slices into smallerpieces. 3.bytes.Join is used to concatenate multiple byte slices into one. 4.bytes.TrimSpace is used to remove the front and back blanks of byte slices. 5.bytes.Equal is used to compare whether two byte slices are equal. 6.bytes.Index is used to find the starting index of sub-slices in largerslices.
Mastering Binary Data Handling with Go's 'encoding/binary' Package: A Comprehensive GuideMay 13, 2025 am 12:07 AMTheencoding/binarypackageinGoisessentialbecauseitprovidesastandardizedwaytoreadandwritebinarydata,ensuringcross-platformcompatibilityandhandlingdifferentendianness.ItoffersfunctionslikeRead,Write,ReadUvarint,andWriteUvarintforprecisecontroloverbinary
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
SublimeText3 English version
Recommended: Win version, supports code prompts!
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
Zend Studio 13.0.1
Powerful PHP integrated development environment
Notepad++7.3.1
Easy-to-use and free code editor
