THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).
This FLIP is a joint work of initially proposed by Yuan Zhu (zstraw@163.com), and finished by Qingsheng Ren (partial caching part) and Alexander Smirnov (full caching part).
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Motivation
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| Option | Type | Descriptions | |
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| lookup.cache | Enum of NONE, PARTIAL and FULL | The caching strategy for this lookup table. NONE: Do not use cache Partial: Use partial caching mode FULL: Use full caching mode | |
| lookup.max-retries | Integer | The maximum allowed retries if a lookup operation fails | |
| lookup.partial-cache.expire-after-access | Duration | Duration to expire an entry in the cache after accessing | |
| lookup.partial-cache.expire-after-write | Duration | Duration to expire an entry in the cache after writing | |
| lookup.partial-cache.cache-missing-key | Boolean | Whether to store an empty value into the cache if the lookup key doesn't match any rows in the table | |
| lookup.partial-cache.max-rows | Long | The maximum number of rows to store in the cache | |
| lookup.full-cache.reload-strategy | Enum of PERIODIC and TIMED | The reload strategy for the full cache scenario. PERIODIC: Use PeriodicCacheReloadTrigger TIMED: Use TimedCacheReloadTrigger | |
| lookup.full-cache.periodic-reload.interval | Duration | Duration to trigger reload in the PeriodicCacheReloadTrigger | |
| lookup.full-cache.periodic-reload.schedule-mode | Enum of FIXED_DELAY and FIXED_RATE | The periodically schedule mode of reloading in the PeriodicCacheReloadTrigger | |
| lookup.full-cache.timed-reload-at.iso-time | LocalTime | String | Time in ISO-8601 format when cache needs to be reloaded. Time can be specified either with timezone or without timezone (target JVM local timezone will be used). See formatter ISO_TIME. The local time on the target JVM to trigger a reload |
| lookup.full-cache.timed-reload.interval-in-days | Integer | The interval in days to trigger the reload at the specified time |
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