Region Exception occurred too many sst files are ingesting

[tank-plus]

Bug Report

1. Describe the bug

Multiple thread ingest batch kvs into a region.

2. Minimal reproduce step (Required)

batch kvs use ImporterClient do ingest method to imort data into tikv

3. What did you see instead (Required)

2022-11-17 06:45:42,079 WARN org.tikv.common.importer.ImporterClient [] - ingest failed.
org.tikv.common.exception.RegionException: Region Exception occurred too many sst files are ingesting
at org.tikv.common.importer.ImporterStoreClient.multiIngest(ImporterStoreClient.java:158) ~[?:?]
at org.tikv.common.importer.ImporterClient.ingestWithRetry(ImporterClient.java:266) ~[?:?]
at org.tikv.common.importer.ImporterClient.ingestWithRetry(ImporterClient.java:320) ~[?:?]
at org.tikv.common.importer.ImporterClient.ingestWithRetry(ImporterClient.java:320) ~[?:?]
at org.tikv.common.importer.ImporterClient.ingest(ImporterClient.java:261) ~[?:?]
at org.tikv.common.importer.ImporterClient.write(ImporterClient.java:136) ~[?:?]
at com.fabarta.loader.tikv.TiKVClient.doIngest(TiKVClient.java:277) ~[?:?]
at com.fabarta.loader.tikv.TiKVClient.groupBatchPut(TiKVClient.java:261) ~[?:?]
at com.fabarta.loader.tikv.TiKVImporter.importData(TiKVImporter.java:71) ~[?:?]
at com.fabarta.loader.core.WriteTiKVTask.flushBuffer(WriteTiKVTask.java:22) ~[?:?]
at com.fabarta.loader.core.WriteTiKVTask.run(WriteTiKVTask.java:29) ~[?:?]
at com.fabarta.loader.core.FabartaLoader.lambda$flushCache$1(FabartaLoader.java:307) ~[?:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:?]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:?]
at java.lang.Thread.run(Unknown Source) [?:?]

4. What did you expect to see? (Required)

5. What are your Java Client and TiKV versions? (Required)

3.3.0

• Client Java:
• TiKV:

[sunxiaoguang]

Can you make sure don't ingest too many set files and don't ingest the same region concurrently.

[liangyuanpeng]

Can you make sure don't ingest too many set files and don't ingest the same region concurrently.

I think that SDK should handle this issue.