dengzhhu653 commented on code in PR #5843:
URL: https://github.com/apache/hive/pull/5843#discussion_r2128179602
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standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/conf/MetastoreConf.java:
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@@ -1905,6 +1905,8 @@ public enum ConfVars {
"Only collect the non-native table's summary that has been
updated/changed in configured recent days."),
METADATA_SUMMARY_MAX_NONNATIVE_TABLES("hive.metatool.summary.maxNonNativeTables",
"hive.metatool.summary.maxNonNativeTables", "",
"The maximum non-native tables allowed per table type during
collecting the summary."),
+
METADATA_SUMMARY_NONNATIVE_THREADS("hive.metatool.summary.nonnative.threads",
"hive.metatool.summary.nonnative.threads", 20,
+ "Number of threads to be allocated for MetaToolTaskMetadataSummary for
collecting the non-native table's summary."),
Review Comment:
I was inspired by `hive.metastore.fshandler.threads`, which default value is
15. The thread is used for loading the Iceberg table: reading the metadata
files, where it might take time over thousands of Iceberg tables, leading to
timeout. The actual threads is min(number of Iceberg tables,
hive.metatool.summary.nonnative.threads)
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