dengzhhu653 commented on code in PR #4565:
URL: https://github.com/apache/hive/pull/4565#discussion_r1290055493
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ql/src/java/org/apache/hadoop/hive/ql/exec/FetchOperator.java:
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@@ -227,7 +227,11 @@ public static InputFormat getInputFormatFromCache(
if (format == null) {
try {
format = ReflectionUtil.newInstance(inputFormatClass, conf);
- inputFormats.put(inputFormatClass.getName(), format);
+ // HBase input formats are not thread safe today. See HIVE-8808.
+ String inputFormatName = inputFormatClass.getName().toLowerCase();
+ if (!inputFormatName.contains("hbase")) {
Review Comment:
Looks like the JdbcInputFormat is stateful, but we can make it stateless, we
can fix it in the follow-up jira.
https://github.com/apache/hive/blob/a406d6d4417277e45b93f1733bed5201afdee29b/jdbc-handler/src/main/java/org/apache/hive/storage/jdbc/JdbcInputFormat.java#L46
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