JMX

Hector provides very rich JMX support. Here’s the list of counters

There’s a blog post about it here

WriteFail (write fail count)

ReadFail (read fail count)

RecoverableTimedOutCount

RecoverableUnavailableCount

RecoverableTransportExceptionCount

RecoverableErrorCount

SkipHostSuccess

NumPoolExhaustedEventCount

NumPools

PoolNames

NumIdleConnections

NumActive

NumExhaustedPools

RecoverableLoadBalancedConnectErrors

ExhaustedPoolNames

NumBlockedThreads

NumConnectionErrors

KnownHosts

updateKnownHosts

READ.success_TPS (transactions per 10 seconds)

READ.success_Mean (mean time of successful read requests the last 10 seconds)

READ.success_Min (fastest read in the last 10 seconds)

READ.success_Max (slowest read in the last 10 seconds)

READ.success_StdDev (stddev read time the last 10 seconds)

WRITE.success_TPS

WRITE.success_Mean

WRITE.success_Min

WRITE.success_Max

WRITE.success_StdDev

READ.fail_TPS

READ.fail_Mean

READ.fail_Min

READ.fail_Max

READ.fail_StdDev

WRITE.fail_TPS

WRITE.fail_Mean

WRITE.fail_Min

WRITE.fail_Max

WRITE.fail_StdDev