Duo Zhang created HBASE-27046:
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Summary: The filenum in AbstractFSWAL should be monotone increasing
Key: HBASE-27046
URL: https://issues.apache.org/jira/browse/HBASE-27046
Project: HBase
Issue Type: Improvement
Reporter: Duo Zhang
This is the current code
{code}
/**
* retrieve the next path to use for writing. Increments the internal filenum.
*/
private Path getNewPath() throws IOException {
this.filenum.set(EnvironmentEdgeManager.currentTime());
Path newPath = getCurrentFileName();
while (fs.exists(newPath)) {
this.filenum.incrementAndGet();
newPath = getCurrentFileName();
}
return newPath;
}
{code}
In some tests, we inject our own EnvironmentEdge, it may return the same ts
always or even go backwards, the logic here is not rnough to keep the filenum
monotone increasing, as we may have already archive the old file.
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