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OceanBase Diagnostic Tool

V1.5.0

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Inspection metrics

Last Updated:2026-04-13 09:12:24  Updated
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OBServer-related metrics
ODP-related metrics

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This topic describes the inspection metrics of obdiag V1.5.0 in details.

OBServer-related metrics

Type Task Inspection purpose
Cluster core_file_find Checks for OBServer nodes that have caused the generation of core dump files.
deadlocks Checks for deadlocks.
major Checks for major compaction tasks that have been in execution for more than 36 hours.
part_trans_action_max Checks whether the number of transaction participants exceeds 200.
tenant_log_size Checks whether the size of logs in the log disk is three times or more of the memory size.
data_path_settings Checks whether the data disk and log disk are set to the same disk.
global_indexes_too_much Checks whether the number of global indexes exceeds 20.
mod_too_large Checks for users who have occupied more than 10 GB of modules.
task_opt_stat_gather_fail Checks for failed history collection tasks.
CPU oversold Checks for OBServer nodes that are not in the ACTIVE state.
Disk disk_full Checks for full disk usage. A warning is sent if disk usage exceeds 80% and an error is sent if it exceeds 90%.
disk_hole Checks for disk holes.
Error code find_err_* Checks for error codes of serious errors.
System aio Checks whether the asynchronous I/O is correctly configured.
dependent_software Checks whether the dependencies of basic software are correctly configured.
parameter Checks whether the kernel parameters are configured as required.
ulimit_parameter Checks whether the ulimit parameters are configured as required.
version bad_version Checks whether an unrecommended OBServer version is used.
Sysbench sysbench_free_test_cpu_count The value of this parameter should be 80% to 100% of the total CPU cores of the server.
sysbench_run_test_tenant_memory_used Checks whether the sum of used or held memory is less than 80% of the total memory for the tenant.
sysbench_test_cpu_quota_concurrency 2 or 4
sysbench_test_tenant_log_disk_size Checks whether the log disk is less than 20 GB.
sysbench_free_test_memory_limit Checks whether the allocated memory is 80% to 90% of the server.
sysbench_test_cluster_datafile_size If logs and data are stored on the same disk, checks whether the percentage of disk space for data files is 60%. If logs and data are stored on different disks, checks whether the percentage of disk space for data files is 90%.
sysbench_test_log_level Checks whether the log level is INFO, WARN, or ERROR.
sysbench_test_tenant_primary_zone Checks whether the primary zone is set to RANDOM.
sysbench_free_test_network_speed Checks whether the NIC provides a bandwidth greater than 1 Gbit/s.
sysbench_test_cluster_log_disk_size If logs and data are stored on the same disk, checks whether the percentage of disk space for log files is 30%. If logs and data are stored on different disks, checks whether the percentage of disk space for log files is 90%.
sysbench_test_sql_net_thread_count Checks whether the net_thread_count parameter is set to 1/8 of the value of the cpu_count parameter, and whether the sql_net_thread_count parameter is set to 0 or the same value as the net_thread_count parameter.
sysbench_run_test_tenant_cpu_used Checks whether the value is greater than 90% of the value of the max_cpu parameter.
sysbench_test_cluster_parameters Checks whether the enable_sql_audit, enable_perf_event, and enable_record_trace_log parameters are set to false.
sysbench_test_tenant_cpu_parameters Checks whether the value of the max_iops parameter is greater than 10,000 times the value of the max_cpu parameter, and the value of the min_iops parameter is greater than 10,000 times the value of the min_cpu parameter.

ODP-related metrics

Type Task Inspection purpose
version bad_version Checks whether an unrecommended version of OceanBase Database Proxy (ODP) is used.

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