Hello, Igniters. For now, Ignite lack of good monitoring subsystem and profiling tools. I think it's time to fix it! I've created IEP-35 [1] for it.
Problems description:
1. Existing metrics are not documented(This is huge issue for our users, I know
it, for sure).
2. Currently, there are different APIs for monitoring: Java API, JMX, Visor
task, SQL System views. But,
the cover Ignite API partially.
3. Many Ignite subsystems and internal processes are hidden from user and
administrator. Ignite is a black box for them.
I want to initiate first part of discussion: Current Ignite APIs for monitoring.
*What APIs are available for what IGNITE subsystems*?
I made some analysis for current APIs.
Please, validate my conclusion:
Monitoring completely unavailable:
* Compute Grid(Visor tasks are broken)
* Service Grid
* Data streamers
* Distributed Data Structures
* Ignite messaging (Ignite#message)
* 3-d party storage
* ContinuousQuery
* MVCC transactions
* ML - *What should be available?*
* Explicit locks
Monitoring API available:
* PDS + offheap memory
* Ignite#dataRegionMetrics
* Ignite#dataStorageMetrics
* Ignite#persistentStoreMetrics
* Cache
* IgniteCache#mxBean
* IgniteCache#localMxBean
* SQL system view: CACHE_GROUPS
* SQL system view: LOCAL_CACHE_GROUPS_IO
* SQL system view: CACHES
* Queries
* IgniteCache#queryMetrics
* IgniteCache#queryDetailMetrics
* SQL system view: LOCAL_SQL_QUERY_HISTORY
* SQL system view: LOCAL_SQL_RUNNING_QUERIES
* SQL
* SQL system view: SCHEMAS
* SQL system view: TABLES
* SQL system view: INDEXES
* Transactions
* JMX - TransactionMetricsMxBean
* JMX - TransactionMXBean
* ThinClients
* JMX - ClientProcessorMXBean
[1] https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=112820392
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