A statistic monitor has installed for the Cache instance created by @CreateCache and @Cached when
jetcache.statIntervalMinutes is greater than 0. The statistic data will be printed like below:
2017-01-12 19:00:00,001 INFO support.StatInfoLogger - jetcache stat from 2017-01-12 18:59:00,000 to 2017-01-12 19:00:00,000
cache | qps| rate| get| hit| fail| expire|avgLoadTime|maxLoadTime
-----------------------------------------------------+----------+-------+--------------+--------------+--------------+--------------+-----------+-----------
default_AlicpAppChannelManager.getAlicpAppChannelById| 0.00| 0.00%| 0| 0| 0| 0| 0.0| 0
default_ChannelManager.getChannelByAccessToten | 30.02| 99.78%| 1,801| 1,797| 0| 4| 0.0| 0
default_ChannelManager.getChannelByAppChannelId | 8.30| 99.60%| 498| 496| 0| 1| 0.0| 0
default_ChannelManager.getChannelById | 6.65| 98.75%| 399| 394| 0| 4| 0.0| 0
default_ConfigManager.getChannelConfig | 1.97| 96.61%| 118| 114| 0| 4| 0.0| 0
default_ConfigManager.getGameConfig | 0.00| 0.00%| 0| 0| 0| 0| 0.0| 0
default_ConfigManager.getInstanceConfig | 43.98| 99.96%| 2,639| 2,638| 0| 0| 0.0| 0
default_ConfigManager.getInstanceConfigSettingMap | 2.45| 70.75%| 147| 104| 0| 43| 0.0| 0
default_GameManager.getGameById | 1.33|100.00%| 80| 80| 0| 0| 0.0| 0
default_GameManager.getGameUrlByUrlKey | 7.33|100.00%| 440| 440| 0| 0| 0.0| 0
default_InstanceManager.getInstanceById | 30.98| 99.52%| 1,859| 1,850| 0| 0| 0.0| 0
default_InstanceManager.getInstanceById_local | 30.98| 96.40%| 1,859| 1,792| 0| 67| 0.0| 0
default_InstanceManager.getInstanceById_remote | 1.12| 86.57%| 67| 58| 0| 6| 0.0| 0
default_IssueDao.getIssueById | 7.62| 81.40%| 457| 372| 0| 63| 0.0| 0
default_IssueDao.getRecentOnSaleIssues | 8.00| 85.21%| 480| 409| 0| 71| 0.0| 0
default_IssueDao.getRecentOpenAwardIssues | 2.52| 82.78%| 151| 125| 0| 26| 0.0| 0
default_PrizeManager.getPrizeMap | 0.82|100.00%| 49| 49| 0| 0| 0.0| 0
default_TopicManager.getOnSaleTopics | 0.97|100.00%| 58| 58| 0| 0| 0.0| 0
default_TopicManager.getOnSaleTopics_local | 0.97| 91.38%| 58| 53| 0| 5| 0.0| 0
default_TopicManager.getOnSaleTopics_remote | 0.08|100.00%| 5| 5| 0| 0| 0.0| 0
default_TopicManager.getTopicByTopicId | 2.90| 98.85%| 174| 172| 0| 0| 0.0| 0
default_TopicManager.getTopicByTopicId_local | 2.90| 96.55%| 174| 168| 0| 6| 0.0| 0
default_TopicManager.getTopicByTopicId_remote | 0.10| 66.67%| 6| 4| 0| 2| 0.0| 0
default_TopicManager.getTopicList | 0.02|100.00%| 1| 1| 0| 0| 0.0| 0
default_TopicManager.getTopicList_local | 0.02| 0.00%| 1| 0| 0| 1| 0.0| 0
default_TopicManager.getTopicList_remote | 0.02|100.00%| 1| 1| 0| 0| 0.0| 0
-----------------------------------------------------+----------+-------+--------------+--------------+--------------+--------------+-----------+-----------
The loadTime is computed only in 2 scenarios:
- call
computeIfAbsentinCache - use
@Cachedannotation on method
The output of statistics can be customized:
// for 2.6+
@Bean
public Consumer<StatInfo> metricsCallback() {
public Consumer<StatInfo> statCallback() {
return new StatInfoLogger(false);
// or implements another Consumer<StatInfo>
}
}JetCache call statCallback method every statIntervalMinutes minutes. The default implementation is:
return new StatInfoLogger(false);There are more verbose information if the parameter of the constructor set to true.
With logback, you can use below configuration to output logs to a separate file:
<appender name="JETCACHE_LOGFILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>jetcache.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>jetcache.log.%d{yyyy-MM-dd}</fileNamePattern>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
<logger name="com.alicp.jetcache" level="INFO" additivity="false">
<appender-ref ref="JETCACHE_LOGFILE" />
</logger>