I’m running into a situation where I’m seeing a lot of Digest errors in the 
debug log. I looked at this post: 
http://stackoverflow.com/questions/39765813/datastax-mismatch-for-key-issue and 
verified that read_repair_chance is set to 0. We are using
DateTieredCompactionStrategy for our time series tables. Can I get some 
pointers on how to track this down?

DEBUG [ReadRepairStage:25] 2017-02-14 17:45:03,256 ReadCallback.java:235 - 
Digest mismatch:
org.apache.cassandra.service.DigestMismatchException: Mismatch for key 
DecoratedKey(-1025043841859687448, 
003e2f66736d732f696e746572616374696f6e732f627275696e732d36393564363866382d633935392d343737622d623230342d656637366533646465616535000008000000000000000000)
 (d41d8cd98f00b204e9800998ecf8427e vs dabf6fac8cf82262b31514aa719434b7)
        at 
org.apache.cassandra.service.DigestResolver.resolve(DigestResolver.java:85) 
~[apache-cassandra-3.9.0.jar:3.9.0]
        at 
org.apache.cassandra.service.ReadCallback$AsyncRepairRunner.run(ReadCallback.java:226)
 ~[apache-cassandra-3.9.0.jar:3.9.0]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
[na:1.8.0_111]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
[na:1.8.0_111]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111]


Regards,
DHRUVA GOPAL
sr. MANAGER, ENGINEERING
REPORTING, ANALYTICS AND BIG DATA
+1 408.325.2011 WORK
+1 408.219.1094 MOBILE
UNITED STATES
dhruva.go...@aspect.com<mailto:dhruva.go...@aspect.com>
aspect.com<http://www.aspect.com/>
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