I have an 11 node cluster and am experiencing high read latency on one table.  This table has ~112 million rows:

 nodetool tablehistograms doc.origdoc
doc/origdoc histograms
Percentile      Read Latency     Write Latency SSTables    Partition Size        Cell Count
                    (micros) (micros)                             (bytes)
50%                 36157.19              0.00 1.00               310                 4 75%                 74975.55              0.00 1.00               372                 4 95%                155469.30              0.00 1.00               642                 4 98%                223875.79              0.00 1.00               924                 4 99%                268650.95              0.00 1.00               924                 4 Min                   152.32              0.00 1.00               180                 4 Max                464228.84              0.00 1.00              9887                17

What should I look for to debug?

Thank you!

-Joe

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