[GitHub] [hadoop-ozone] lokeshj1703 edited a comment on issue #673: HDDS-3064. Get Key is hung when READ delay is injected in chunk file path.

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lokeshj1703 edited a comment on issue #673: HDDS-3064. Get Key is hung when READ delay is injected in chunk file path.
URL: https://github.com/apache/hadoop-ozone/pull/673#issuecomment-599001121
 
 
   @adoroszlai @bshashikant I am not saying we wait for the entire block to be read. The client will be reused for all the chunk reads. Lets take a scenario.
   Chunk1 fails on dn1. Succeded on dn2.
   Chunk2 -> we should try reading from either dn2 or dn3. We will need to mark dn1 timed out in the code. Currently we can still retry dn1.
   Chunk3 -> dn2, dn3 fail. We should retry dn1 before failing the read.
   For retrying dn1 we will need to reestablish the connection. I think we are handling this.
   
   Regarding the deadline, if we set a deadline at t=0, the stub will fail at t=30 even if the client is able to read chunks from the stub. Please verify if this is how the deadline works. I think we will need to differentiate between this scenario and scenario where chunk read is timing out.

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