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Posted to notifications@skywalking.apache.org by GitBox <gi...@apache.org> on 2018/05/30 15:50:51 UTC

[GitHub] peng-yongsheng opened a new pull request #1294: [Collector] Crash down by OutOfMemoryError exception.

peng-yongsheng opened a new pull request #1294: [Collector] Crash down by OutOfMemoryError exception.
URL: https://github.com/apache/incubator-skywalking/pull/1294
 
 
   Please answer these questions before submitting pull request
   
   - Why submit this pull request?
   - [X] Bug fix
   - [ ] New feature provided
   - [ ] Improve performance
   
   - Related issues
   #1291 
   ___
   ### Bug fix
   - Bug description.
   Aggregate workers and persistence workers own two cache collections. One of the their use to cache the data merged by streaming data. The other one is waiting to export aggregated when persistence timer scanning. But if persistence speed can not catch streaming speed, the cache collection's size will increased too large. Collector will crash down when all the workers cached huge data.
   
   - How to fix?
   Block streaming, mandatory persistent cache data to storage then clean the cache data.

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