Some levels are skipped while creating the task cache in JobInProgress
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Key: HADOOP-3296
URL: https://issues.apache.org/jira/browse/HADOOP-3296
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Affects Versions: 0.17.0
Reporter: Amar Kamat
Priority: Blocker
Fix For: 0.17.0
Consider the following piece of code
{code:title=JobInProgress.createCache()|borderStyle=solid}
Node node = jobtracker.resolveAndAddToTopology(host);
for (int j = 0; j < maxLevel; j++) {
node = JobTracker.getParentNode(node, j);
.....
{code}
With {{maxLevel = 5}} the caches will be created in the following order
||j||node-level||
|0|0|
|1|1|
|2|3|
|3|6|
which is not as desired.
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