runHook | R Documentation |
Hooks allow to trigger functions calls on specific events.
They can be specified via the ClusterFunctions
and are triggered on the following events:
pre.sync
function(reg, fns, ...)
: Run before synchronizing the registry on the master. fn
is the character vector of paths to the update files.
post.sync
function(reg, updates, ...)
: Run after synchronizing the registry on the master. updates
is the data.table of processed updates.
pre.submit.job
function(reg, ...)
: Run before a job is successfully submitted to the scheduler on the master.
post.submit.job
function(reg, ...)
: Run after a job is successfully submitted to the scheduler on the master.
pre.submit
function(reg, ...)
: Run before any job is submitted to the scheduler.
post.submit
function(reg, ...)
: Run after a jobs are submitted to the schedule.
pre.do.collection
function(reg, reader, ...)
: Run before starting the job collection on the slave.
reader
is an internal cache object.
post.do.collection
function(reg, updates, reader, ...)
: Run after all jobs in the chunk are terminated on the slave.
updates
is a data.table
of updates which will be merged with the Registry
by the master.
reader
is an internal cache object.
pre.kill
function(reg, ids, ...)
: Run before any job is killed.
post.kill
function(reg, ids, ...)
: Run after jobs are killed. ids
is the return value of killJobs
.
runHook(obj, hook, ...)
obj |
[Registry | JobCollection] |
hook |
[ |
... |
[ANY] |
Return value of the called function, or NULL
if there is no hook
with the specified ID.
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