[GitHub] [incubator-doris] morningman opened a new issue #2214: Too many expired transaction on BE which cause BE no responding

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morningman opened a new issue #2214: Too many expired transaction on BE which cause BE no responding
URL: https://github.com/apache/incubator-doris/issues/2214
 
 
   When there are lots of expired transactions on BE, and with large
   number of tablet, the report thread may become to slow. Because it
   has to iterate the whole transaction map for each tablet.
   
   For example, there are 100000 tablets on a BE and 1000 expired transaction,
   the  number of loop is 100 million!
   
   But this is unnecessary. We should first build a expired transaction
   map with 'tablet id' as key. And for each tablet, we only need to seek
   the expired transaction map once with tablet id, instead of traversing
   the whole transaction map.
   

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