reddycharan commented on a change in pull request #1391: Issue #570:
EntryLogManagerForEntryLogPerLedger implementation
URL: https://github.com/apache/bookkeeper/pull/1391#discussion_r189416753
##########
File path:
bookkeeper-server/src/test/java/org/apache/bookkeeper/bookie/CreateNewLogTest.java
##########
@@ -268,4 +508,64 @@ public void testCreateNewLogAndCompactionLog() throws
Exception {
"previousAllocatedEntryLogId after 2 times createNewLog is
called", 2,
el.getPreviousAllocatedEntryLogId());
}
+
+ /*
+ * In this testcase entrylogs for ledgers are tried to create concurrently.
+ */
+ @Test
+ public void testConcurrentEntryLogCreations() throws Exception {
+ ServerConfiguration conf =
TestBKConfiguration.newServerConfiguration();
+
+ // Creating a new configuration with a number of ledger directories.
+ conf.setLedgerDirNames(ledgerDirs);
+ // pre-allocation is enabled
+ conf.setEntryLogFilePreAllocationEnabled(true);
+ conf.setEntryLogPerLedgerEnabled(true);
+ LedgerDirsManager ledgerDirsManager = new LedgerDirsManager(conf,
conf.getLedgerDirs(),
+ new DiskChecker(conf.getDiskUsageThreshold(),
conf.getDiskUsageWarnThreshold()));
+ EntryLogger entryLogger = new EntryLogger(conf, ledgerDirsManager);
+ EntryLogManagerForEntryLogPerLedger entrylogManager =
(EntryLogManagerForEntryLogPerLedger)
+ entryLogger.getEntryLogManager();
+
+ int numOfLedgers = 10;
+ int numOfThreadsForSameLedger = 10;
+ AtomicInteger createdEntryLogs = new AtomicInteger(0);
+ CountDownLatch startLatch = new CountDownLatch(1);
+ CountDownLatch createdLatch = new CountDownLatch(numOfLedgers *
numOfThreadsForSameLedger);
+
+ for (long i = 0; i < numOfLedgers; i++) {
+ for (int j = 0; j < numOfThreadsForSameLedger; j++) {
+ long ledgerId = i;
+ new Thread() {
+ @Override
+ public void run() {
Review comment:
changed it to lambda
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