View storage and cache monitoring details

On the storage and cache monitoring page of a tenant, you can view monitoring data such as the storage usage, read/write speed, and cache usage of the tenant.

Procedure

1. Log in to the OceanBase Cloud console.

2. In the left-side navigation pane, click Instances.

3. On the Instances page, find the target cluster instance and click the expand icon next to the instance name.

4. Find the target tenant and click the tenant name.

5. On the Overview page of the tenant, click Metrics in the left-side navigation pane.

6. On the page that appears, click the Storage and Cache tab.

7. By default, the Storage and Cache tab shows the monitoring data in the last hour.

   Metric	Metric name	Unit	Description
   MemStore	active_memstore_used major_freeze_trigger memstore_limit total_memstore_used	MB	The total size of active MemStores. The threshold for triggering a major compaction. The upper limit of the total size of all MemStores. The total size of MemStores.
   Average I/O Operations per Second	io_read_count io_write_count	times/s	The number of reads from the SSStore per second. The number of writes to the SSStore per second.
   Time Consumed for I/O Operations	io_read_rt io_write_rt	ms	The average amount of time spent on each SSStore read. The average amount of time spent on each SSStore write.
   I/O Throughput	io_read_size io_write_size	Byte	The amount of data read from the SSStore per second. The amount of data written to the SSStore per second.
   Cache Size	block_cache_size bloom_filter_cache_size clog_cache_size location_cache_size plan_cache_size row_cache_size	MB	The size of the block cache. The size of the Bloom filter cache. The size of the clog cache. The size of the location cache. The size of the plan cache. The size of the row cache.
   Cache Hit Ratio	block_cache_hit_ratio bloom_filter_cache_hit_ratio clog_cache_hit_ratio location_cache_hit_ratio plan_cache_hit_ratio row_cache_hit_ratio	%	The hit rate of the block cache. The hit rate of the Bloom filter cache. The hit rate of the clog cache. The hit rate of the location cache. The hit rate of the plan cache. The hit rate of the row cache.
   Cache Request Count	block_cache_req_total bloom_filter_cache_req_total clog_cache_req_total location_cache_req_total row_cache_req_total	N/A	The number of block cache requests. The number of Bloom filter cache requests. The number of clog cache requests. The number of location cache requests. The number of row cache requests.
   Binlog Disk Usage	ob_tenant_binlog_disk_used	GB	The size of disk space occupied by binlogs.
   OB tenant memory usage rate	ob_tenant_memory_percent	%	The memory usage of the tenant.
   Total number of log disks	ob_tenant_log_disk_total_bytes	GB	The total size of the tenant log disk.
   Log disk usage	ob_tenant_log_disk_used_bytes	GB	The occupied space of the tenant log disk.
   Data Usage	ob_tenant_server_required_size	GB	The disk space occupied by tenant data.
   Data Volume	ob_tenant_server_data_size	GB	The volume of tenant data.