@yagoaparecidoti If you notice that the high memory utilization moves from tablet server to tablet server, then another candidate is a problem with the schema of one or more tables. The specific symptom I am thinking of is that the tablet size may be too high due to too few partitions; this can drive high memory utilization because the of the amount of information that must be loaded into memory. The fast way to determine whether this is the case is to look at the Charts for the Tablet Server with high memory utilization, and check the size of data across all tablets on that server. Then, divide this number by the number of replicas on the server, and this gives us an avg value of the replica size. It is perfectly possible for this problem to originate with a single table, so if you have one or more tables you know have few partitions, I recommend checking that table specifically. Beyond this will require log analysis, and is better suited to a support case.
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