IGNITE-14913 CacheMetrics command for Control Script

[shishkovilja]

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Implementation

Main classes

Internal task VisorCacheMetricsTask is implemented for enabling or disabling metrics collection.
Logic of Control Script is implemented in CacheMetrics class.

Command syntax

--cache metrics enable|disable|status --caches cache1[,...,cacheN]|--all-caches

Output format

Status

Command [CACHE] started
Arguments: --cache metrics status --all-caches 
--------------------------------------------------------------------------------
Cache Name    Metrics Status
cache-1       enabled              
cache-2       disabled             
cache-3       disabled             
Command [CACHE] finished with code: 0

Enable/disable

Command [CACHE] started
Arguments: --cache metrics enable --caches cache-2,cache-1,cache-3
--------------------------------------------------------------------------------
Cache Name    Metrics Status
cache-1       enabled              
cache-2       enabled             
cache-3       enabled    
Command [CACHE] finished with code: 0

Execution errors

If one of a specified caches was not found, then exception will be thrown:
For status operation:

Command [CACHE] started
Arguments: --cache metrics status --caches cache-1,cache-2,non-existent-cache 
--------------------------------------------------------------------------------
Cache does not exist: non-existent-cache
Command [CACHE] finished with code: 4
Error stack trace:
class org.apache.ignite.IgniteException: Cache does not exist: non-existent-cache
	at org.apache.ignite.internal.visor.cache.metrics.VisorCacheMetricsManageTask$VisorCacheMetricsManageJob.cacheMetricsStatus(VisorCacheMetricsManageTask.java:103)
	at org.apache.ignite.internal.visor.cache.metrics.VisorCacheMetricsManageTask$VisorCacheMetricsManageJob.run(VisorCacheMetricsManageTask.java:79)
	at org.apache.ignite.internal.visor.cache.metrics.VisorCacheMetricsManageTask$VisorCacheMetricsManageJob.run(VisorCacheMetricsManageTask.java:50)
	at org.apache.ignite.internal.visor.VisorJob.execute(VisorJob.java:69)
...

For enable/disable operations:

Command [CACHE] started
Arguments: --cache metrics disable --caches cache-1,cache-2,non-existent-cache 
--------------------------------------------------------------------------------
One or more cache descriptors not found [caches=[cache-1, cache-2, non-existent-cache]]
Command [CACHE] finished with code: 4
Error stack trace:
class org.apache.ignite.IgniteException: One or more cache descriptors not found [caches=[cache-1, cache-2, non-existent-cache]]
	at org.apache.ignite.internal.util.IgniteUtils.convertException(IgniteUtils.java:1110)
	at org.apache.ignite.internal.cluster.IgniteClusterImpl.enableStatistics(IgniteClusterImpl.java:599)
	at org.apache.ignite.internal.visor.cache.metrics.VisorCacheMetricsManageTask$VisorCacheMetricsManageJob.run(VisorCacheMetricsManageTask.java:75)
	at org.apache.ignite.internal.visor.cache.metrics.VisorCacheMetricsManageTask$VisorCacheMetricsManageJob.run(VisorCacheMetricsManageTask.java:50)
	at org.apache.ignite.internal.visor.VisorJob.execute(VisorJob.java:69)
...