adoroszlai opened a new pull request #802: HDDS-3366. Ozone Client should not 
retry on invalid token
URL: https://github.com/apache/hadoop-ozone/pull/802
 
 
   ## What changes were proposed in this pull request?
   
   Skip failover attempts on invalid token (encountered by S3 Gateway), along 
the lines of #693.
   
   https://issues.apache.org/jira/browse/HDDS-3366
   
   ## How was this patch tested?
   
   https://github.com/adoroszlai/hadoop-ozone/runs/573315000
   
   Verified that no failover attempt happens, whereas previously client made 15 
attempts:
   
   ```
   s3g_1 ... ERROR ha.OMFailoverProxyProvider: Failed to connect to OMs: 
[nodeId=null,nodeAddress=om:9862]. Attempted 15 failovers.
   ```
   
   ```
   $ grep -c 's3g_1 .* Exception encountered while connecting to the 
server.*InvalidToken' old new
   old:85
   new:5
   ```

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