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1. Cache
   1. PDS + offheap memory
      1. Ignite#dataRegionMetrics
      2. Ignite#dataStorageMetrics
      3. Ignite#persistentStoreMetrics
   2. Queries
      1. IgniteCache#queryMetrics
      2. IgniteCache#queryDetailMetrics
      3. QueryHistoryMetrics
   3. IgniteCache#mxBean
   4. IgniteCache#localMxBean
2. SQL
   1. LOCAL_SQL_RUNNING_QUERIES
   2. INDEXES
3. Transactions
   1. JMX - TransactionMetricsMxBean
   2. JMX - TransactionMXBean
4. ThinClients
   1. JMX - ClientProcessorMXBean

Design Principles

1. Sensors should contain only raw values. No aggregation of numeric metrics on Ignite side.
   Min, max, avg and other functions are the matter of external monitoring system.
2. Every user task should have an ID or name provided by a user on start time that allows association between monitoring info and user code.
   User should be able to find his code reflected in monitoring.
3. Every user task should have an ID or name of "connectionID"("sessionID", "clientID") or similar.
   User should be able to know that a specific task was triggered by the specific connection(session, client).
4. No computation to get current values. We should change sensors and lists values when specific events occur.
   When some sensor queries we should only get its value from internal storage. No additional computation involved.

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