[FLINK-21543] when using FIFO compaction, I found sst being deleted on the first checkpoint

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Information Provided
• Component/s: Runtime / State Backends
• Labels: auto-deprioritized-major stale-minor
• Assignee: Unassigned
• Reporter: xiaogang zhou
• Created: 01/Mar/21 12:58
• Updated: 03/Nov/21 04:08
• Resolved: 29/Oct/21 08:32

Description

2021/03/01-18:51:01.202049 7f59042fc700 (Original Log Time 2021/03/01-18:51:01.200883) [/compaction/compaction_picker_fifo.cc:107] [_timer_state/processing_user-timers] FIFO compaction: picking file 1710 with creation time 0 for deletion

 

the configuration is like 

currentOptions.setCompactionStyle(getCompactionStyle());
currentOptions.setLevel0FileNumCompactionTrigger(8);
// currentOptions.setMaxTableFilesSizeFIFO(MemorySize.parse("2gb").getBytes());
CompactionOptionsFIFO compactionOptionsFIFO = new CompactionOptionsFIFO();
compactionOptionsFIFO.setMaxTableFilesSize(MemorySize.parse("8gb").getBytes());
compactionOptionsFIFO.setAllowCompaction(true);

 

the rocksdb version is 

<dependency>
<groupId>io.github.myasuka</groupId>
<artifactId>frocksdbjni</artifactId>
<version>6.10.2-ververica-3.0</version>
</dependency>

 

I think the problem is caused by tableproperty is lost by snapshot. Can any one suggest how i can skip this problem?