hcq/MaxScale
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MXS-2329 Use durations in ccrfilter

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The time window of the ccrfilter is now specified as a duration.
Internally, the time window is still always handled as seconds.
This commit is contained in:
Johan Wikman 2019-02-15 11:53:53 +02:00
parent daf5c6b29c
commit f3acf77a9f
2 changed files with 13 additions and 6 deletions
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9
Documentation/Filters/CCRFilter.md
View File

@ -57,8 +57,13 @@ The CCR filter has no mandatory parameters.
### `time`
The time window in seconds during which queries are routed to the master. The
default value for this parameter is 60 seconds.
The time window during which queries are routed to the master. The duration
can be specified as documented
[here](Getting-Started/Configuration-Guide.md#durations)
but the value will always be rounded to the nearest second.
If no explicit unit has been specified, the value is interpreted as seconds
in MaxScale 2.4. In subsequent versions a value without a unit may be rejected.
The default value for this parameter is 60 seconds.
When a data modifying SQL statement is processed, a timer is set to the value of
_time_. Once the timer has elapsed, all statements are routed normally. If a new

10
server/modules/filter/ccrfilter/ccrfilter.cc
View File

@ -90,7 +90,9 @@ public:
if (new_instance)
{
new_instance->m_count = params->get_integer("count");
new_instance->m_time = params->get_integer("time");
new_instance->m_time = params->get_duration("time", mxs::config::INTERPRET_AS_SECONDS).count();
// The window is in seconds.
new_instance->m_time = std::lround(new_instance->m_time / 1000.0);
new_instance->m_match = params->get_string(PARAM_MATCH);
new_instance->m_nomatch = params->get_string(PARAM_IGNORE);
@ -345,11 +347,11 @@ extern "C" MXS_MODULE* MXS_CREATE_MODULE()
NULL, /* Thread init. */
NULL, /* Thread finish. */
{
{"count", MXS_MODULE_PARAM_COUNT, "0" },
{"time", MXS_MODULE_PARAM_COUNT, "60" },
{"count", MXS_MODULE_PARAM_COUNT, "0"},
{"time", MXS_MODULE_PARAM_DURATION, "60s"},
{PARAM_MATCH, MXS_MODULE_PARAM_REGEX},
{PARAM_IGNORE, MXS_MODULE_PARAM_REGEX},
{"options", MXS_MODULE_PARAM_ENUM, "ignorecase", MXS_MODULE_OPT_NONE, option_values},
{"options", MXS_MODULE_PARAM_ENUM, "ignorecase", MXS_MODULE_OPT_NONE, option_values},
{MXS_END_MODULE_PARAMS}
}
};