Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/17495#discussion_r111213925
--- Diff:
core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala ---
@@ -320,14 +321,35 @@ private[history] class FsHistoryProvider(conf:
SparkConf, clock: Clock)
.filter { entry =>
try {
val prevFileSize =
fileToAppInfo.get(entry.getPath()).map{_.fileSize}.getOrElse(0L)
+
+ def canAccess = {
+ val perm = entry.getPermission
+ val ugi = UserGroupInformation.getCurrentUser
+ val user = ugi.getShortUserName
+ val groups = ugi.getGroupNames
+ if (user == entry.getOwner &&
perm.getUserAction.implies(FsAction.READ)) {
+ true
+ } else if (groups.contains(entry.getGroup) &&
+ perm.getGroupAction.implies(FsAction.READ)) {
+ true
+ } else if (perm.getOtherAction.implies(FsAction.READ)) {
+ true
+ } else {
+ throw new AccessControlException(s"Permission denied:
user=$user, " +
--- End diff --
Why throw an exception instead of returning false? That makes the
function's interface weird.
You could just log the access issue here if you want, and then you can even
remove the `try..catch`.
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