/**
* Creates new shuffle job.
*
* @param jobId Job ID.
* @return Created shuffle job.
* @throws GridException If job creation failed.
*/
private GridHadoopShuffleJob<UUID> newJob(GridHadoopJobId jobId) throws GridException {
GridHadoopMapReducePlan plan = ctx.jobTracker().plan(jobId);
GridHadoopShuffleJob<UUID> job =
new GridHadoopShuffleJob<>(
ctx.localNodeId(),
ctx.localNodeId(),
log,
ctx.jobTracker().job(jobId, null),
mem,
plan.reducers(),
plan.reducers(ctx.localNodeId()));
UUID[] rdcAddrs = new UUID[plan.reducers()];
for (int i = 0; i < rdcAddrs.length; i++) {
UUID nodeId = plan.nodeForReducer(i);
assert nodeId != null : "Plan is missing node for reducer [plan=" + plan + ", rdc=" + i + ']';
rdcAddrs[i] = nodeId;
}
boolean init = job.initializeReduceAddresses(rdcAddrs);
assert init;
return job;
}
