Clone one or more nodes

cloneNode(x, ...)

Arguments

x: A cluster node or a cluster.
...: Optional arguments overriding the recorded ones.

Value

An object of class class(x).

Examples

# \donttest{
cl <- makeClusterPSOCK(2)
print(cl)
#> Socket cluster with 2 nodes where 2 nodes are on host ‘localhost’ (R version 4.3.3 (2024-02-29), platform x86_64-pc-linux-gnu)

## Terminate the second cluster node
parallel::stopCluster(cl[2])

## Show that cluster node #2 is no longer alive (wait a bit first)
Sys.sleep(1.0)
print(isNodeAlive(cl))
#> [1]  TRUE FALSE
print(cl)
#> Socket cluster with 2 nodes where 2 nodes are on host ‘localhost’ (R version 4.3.3 (2024-02-29), platform x86_64-pc-linux-gnu). 1 node (#2) has a broken connection (ERROR: invalid connection)

## "Restart" it
cl[2] <- cloneNode(cl[2])
print(cl)
#> Socket cluster with 2 nodes where 2 nodes are on host ‘localhost’ (R version 4.3.3 (2024-02-29), platform x86_64-pc-linux-gnu)

## Check all nodes
print(isNodeAlive(cl))
#> [1] TRUE TRUE
# }