KUDU-2996: trace when rpc_duration_too_long_ms exceeded
KUDU-2996: trace when rpc_duration_too_long_ms exceeded

Change-Id: I20d9b5e318f4a987051f1f7c2cd5b1d92c61bd05
Reviewed-on: http://gerrit.cloudera.org:8080/15197
Tested-by: Alexey Serbin <864f6b82bd94e8dda64141d4274519ee66e0102e@cloudera.com>
Reviewed-by: Alexey Serbin <864f6b82bd94e8dda64141d4274519ee66e0102e@cloudera.com>

helifu/kudu,helifu/kudu,helifu/kudu,helifu/kudu,helifu/kudu,helifu/kudu,helifu/kudu,helifu/kudu,helifu/kudu