lokeshj1703 opened a new pull request #1828:
URL: https://github.com/apache/ozone/pull/1828
## What changes were proposed in this pull request?
If SCM cleans up all the DeletedBlocksTransaction in deletedBlocksTable,
then restart, the txID in SCMMetadataStoreImpl will drop to 0.
in SCMMetadataStoreImpl.java
```
public SCMMetadataStoreImpl(OzoneConfiguration config)
throws IOException {
this.configuration = config;
start(this.configuration);
this.txID = new AtomicLong(this.getLargestRecordedTXID());
}
private Long getLargestRecordedTXID() throws IOException {
try (TableIterator<Long, ? extends KeyValue<Long,
DeletedBlocksTransaction>>
txIter = deletedBlocksTable.iterator()) {
txIter.seekToLast();
Long txid = txIter.key();
if (txid != null) {
return txid;
}
}
return 0L;
}```
in DeletedBlockLogImpl.java
```
public void commitTransactions(
List<DeleteBlockTransactionResult> transactionResults, UUID dnID) {
...
scmMetadataStore.getDeletedBlocksTXTable().delete(txID);
...
}```
## What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-4477
## How was this patch tested?
Existing UT - TestDeletedBlockLog and other deletion tests
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