Github user hyunsik commented on a diff in the pull request:
https://github.com/apache/tajo/pull/356#discussion_r23396975
--- Diff:
tajo-core/src/main/java/org/apache/tajo/util/history/HistoryWriter.java ---
@@ -49,8 +56,10 @@
public static final String QUERY_LIST = "query-list";
public static final String QUERY_DETAIL = "query-detail";
public static final String HISTORY_FILE_POSTFIX = ".hist";
+ private static short REPLICATION = 1;
--- End diff --
Since history may be not critical data in many cases, one replication would
be enough. But, in some cases, it can be very important. How about improve it
to be some configurable?
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