gaozhangmin commented on code in PR #3541:
URL: https://github.com/apache/bookkeeper/pull/3541#discussion_r997677788
##########
bookkeeper-server/src/main/java/org/apache/bookkeeper/replication/Auditor.java:
##########
@@ -1224,22 +1224,37 @@ private CompletableFuture<?>
publishSuspectedLedgersAsync(Collection<String> mis
LOG.info("Following ledgers: {} of bookie: {} are identified as
underreplicated", ledgers, missingBookies);
numUnderReplicatedLedger.registerSuccessfulValue(ledgers.size());
LongAdder underReplicatedSize = new LongAdder();
+
FutureUtils.processList(
Lists.newArrayList(ledgers),
- ledgerId ->
-
ledgerManager.readLedgerMetadata(ledgerId).whenComplete((metadata, exception)
-> {
+ ledgerId -> {
+ try {
+ openLedgerNoRecoverySemaphore.acquire();
+ } catch (InterruptedException e) {
+ LOG.error("Unable to acquire open ledger operation
semaphore ", e);
+ Thread.currentThread().interrupt();
Review Comment:
You can check it with this test
```
@Test
public void testProcessListSuccess() throws Exception {
List<Long> longList = Lists.newArrayList(LongStream.range(0L,
10L).iterator());
List<Long> expectedList = Lists.transform(
longList,
aLong -> 2 * aLong);
Semaphore testSemaphore = new Semaphore(5);
Function<Long, CompletableFuture<Long>> sumFunc = value ->
FutureUtils.value(2 * value);
long start = System.currentTimeMillis();
CompletableFuture<List<Long>> totalFuture = FutureUtils.processList(
longList,
num -> {
try {
testSemaphore.acquire();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
return FutureUtils.value(2 * num).whenComplete((v, e) -> {
try {
Thread.sleep(1000);
} catch (Exception ex) {
}
testSemaphore.release();
});
},
null);
assertEquals(expectedList, FutureUtils.result(totalFuture));
assertTrue(System.currentTimeMillis()-start >= 10*1000);
}
```
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