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https://issues.apache.org/jira/browse/MAPREDUCE-7474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17838318#comment-17838318
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ASF GitHub Bot commented on MAPREDUCE-7474:
-------------------------------------------
steveloughran commented on code in PR #6716:
URL: https://github.com/apache/hadoop/pull/6716#discussion_r1569203962
##########
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/output/committer/manifest/ManifestCommitterConstants.java:
##########
@@ -143,6 +145,20 @@ public final class ManifestCommitterConstants {
*/
public static final boolean OPT_CLEANUP_PARALLEL_DELETE_DIRS_DEFAULT = true;
+ /**
+ * Should parallel cleanup try to delete teh base first?
+ * Best for azure as it skips the task attempt deletions unless
+ * the toplevel delete fails.
+ * Value: {@value}.
+ */
+ public static final String OPT_CLEANUP_PARALLEL_DELETE_BASE_FIRST =
+ OPT_PREFIX + "cleanup.parallel.delete.base.first";
+
+ /**
+ * Default value of option {@link #OPT_CLEANUP_PARALLEL_DELETE_BASE_FIRST}:
{@value}.
+ */
+ public static final boolean OPT_CLEANUP_PARALLEL_DELETE_BASE_FIRST_DEFAULT =
true;
Review Comment:
really don't know here. In the docs I try to cover this
> [ABFS] Improve commit resilience and performance in Manifest Committer
> ----------------------------------------------------------------------
>
> Key: MAPREDUCE-7474
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7474
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: client
> Affects Versions: 3.4.0, 3.3.6
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
> Labels: pull-request-available
>
> * Manifest committer is not resilient to rename failures on task commit
> without HADOOP-18012 rename recovery enabled.
> * large burst of delete calls noted: are they needed?
> relates to HADOOP-19093 but takes a more minimal approach with goal of
> changes in manifest committer only.
> Initial proposed changes
> * retry recovery on task commit rename, always (repeat save, delete, rename)
> * audit delete use and see if it can be pruned
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