Jenkins – How to tell jenkins not to kill processes after successful execution of job in multijob project

Yes, creating fake BUILD_ID for process tells Jenkins to ignore this process during detection spawned processes, so this process will be not killed after finishing job.

Usage: Enter BUILD_ID=dontKillMe before your command, for example into Execute shell build step:

 BUILD_ID=dontKillMe nohup ./yourStartScript.sh &

Note: See also nohup

The problem is that in order for this to work as you expect, the "width" argument needs to also be specified.

Here's an example:

test.1 <- data.frame(Variable.1 = as.character(c(1,2,3)), 
                     Variable.2 = as.character(c(5,6,7)))

# Identify the width of the widest column by column name
name.width <- max(sapply(names(test.1), nchar))
format(test.1, width = name.width, justify = "centre")
#   Variable.1 Variable.2
# 1     1          5     
# 2     2          6     
# 3     3          7  

But, how does this approach work with columns where the variable names are different lengths? Not so well.

test.2 <- data.frame(A.Really.Long.Variable.Name = as.character(c(1,2,3)), 
                     Short.Name = as.character(c(5,6,7)))

name.width <- max(sapply(names(test.2), nchar))
format(test.2, width = name.width, justify = "centre")
#   A.Really.Long.Variable.Name                  Short.Name
# 1              1                           5             
# 2              2                           6             
# 3              3                           7             

There is, of course, a workaround: change the "width" of each variable name to be equal lengths by padding them with spaces (using format())

orig.names <- names(test.2) # in case you want to restore the original names
names(test.2) <- format(names(test.2), width = name.width, justify = "centre")
format(test.2, width = name.width, justify = "centre")
#   A.Really.Long.Variable.Name         Short.Name         
# 1              1                           5             
# 2              2                           6             
# 3              3                           7