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Comments in config.xml; reset values for production use case

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This commit is contained in:
Alexey Milovidov 2020-05-01 22:18:35 +03:00
parent 439777ef23
commit c40ffb88c6
1 changed files with 9 additions and 3 deletions
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programs/server/config.xml
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@ -139,11 +139,17 @@
<!-- Simple server-wide memory profiler. Collect a stack trace at every peak allocation step (in bytes). <!-- Simple server-wide memory profiler. Collect a stack trace at every peak allocation step (in bytes).
Data will be stored in system.trace_log table with query_id = empty string. Data will be stored in system.trace_log table with query_id = empty string.
Zero means disabled. Minimal effective value is 4 MiB. Zero means disabled.
--> -->
<total_memory_profiler_step>1</total_memory_profiler_step> <total_memory_profiler_step>4194304</total_memory_profiler_step>
<total_memory_tracker_sample_probability>1</total_memory_tracker_sample_probability> <!-- Collect random allocations and deallocations and write them into system.trace_log with 'MemorySample' trace_type.
The probability is for every alloc/free regardless to the size of the allocation.
Note that sampling happens only when the amount of untracked memory exceeds the untracked memory limit,
which is 4 MiB by default but can be lowered if 'total_memory_profiler_step' is lowered.
You may want to set 'total_memory_profiler_step' to 1 for extra fine grained sampling.
-->
<total_memory_tracker_sample_probability>0</total_memory_tracker_sample_probability>
<!-- Set limit on number of open files (default: maximum). This setting makes sense on Mac OS X because getrlimit() fails to retrieve <!-- Set limit on number of open files (default: maximum). This setting makes sense on Mac OS X because getrlimit() fails to retrieve
correct maximum value. --> correct maximum value. -->