kangkaisen commented on issue #690: There should be memory leak in Doris URL: https://github.com/apache/incubator-doris/issues/690#issuecomment-471394006 After @imay reminded, I found the `_tablets_channels` in `TabletWriterMgr` have memory leak. ``` W0309 17:57:55.167860 16631 tablet_writer_mgr.cpp:254] add key: (id=0D48E94A8C810F5B:B160B9E5318D72AB,index_id=3378242) W0309 17:57:55.169076 16631 tablet_writer_mgr.cpp:255] channels size: 1695 W0309 17:57:55.170675 16651 tablet_writer_mgr.cpp:254] add key: (id=0D48E94A8C810F5B:B160B9E5318D72AB,index_id=3378283) W0309 17:57:55.170835 16651 tablet_writer_mgr.cpp:255] channels size: 1696 W0309 17:57:55.199170 16644 tablet_writer_mgr.cpp:301] add_batch erase key: (id=0D48E94A8C810F5B:B160B9E5318D72AB,index_id=3378242 ) W0309 17:57:55.218492 16640 tablet_writer_mgr.cpp:301] add_batch erase key: (id=0D48E94A8C810F5B:B160B9E5318D72AB,index_id=3378283 ) W0309 17:57:55.324714 16630 tablet_writer_mgr.cpp:254] add key: (id=BD495FD379FEA718:5C3FA46F9A8ABAAB,index_id=3399270) W0309 17:57:55.324998 16630 tablet_writer_mgr.cpp:255] channels size: 1695 ```
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