ddupg commented on a change in pull request #3045:
URL: https://github.com/apache/hbase/pull/3045#discussion_r599267260
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File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALProvider.java
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@@ -130,7 +130,12 @@ void init(WALFactory factory, Configuration conf, String
providerId, Abortable s
void addWALActionsListener(WALActionsListener listener);
default WALFileLengthProvider getWALFileLengthProvider() {
- return path -> getWALs().stream().map(w ->
w.getLogFileSizeIfBeingWritten(path))
- .filter(o -> o.isPresent()).findAny().orElse(OptionalLong.empty());
+ return path -> getWALs().stream().map(w -> {
+ try {
+ return w.getLogFileSizeIfBeingWritten(path);
+ } catch (IOException e) {
+ return OptionalLong.empty();
Review comment:
Thanks @Apache9 for reviewing.
In this PR, I introduce `RemoteWALFileLengthProvider` implementing
WALFileLengthProvider, it is hold by ReplicationServer and gets the length of
wals from RS through RPC, it may throw an IOE. So I need declare
`WALFileLengthProvider.getLogFileSizeIfBeingWritten` as throwing IOException.
But this is safe here, `WALProvider` is only used by RS, `getWALs` returns
`WAL` that `extents WALFileLengthProvider` and won't throw IOE.
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