本文整理汇总了Java中org.apache.hadoop.hdfs.server.common.Storage.STORAGE_FILE_LOCK属性的典型用法代码示例。如果您正苦于以下问题：Java Storage.STORAGE_FILE_LOCK属性的具体用法？Java Storage.STORAGE_FILE_LOCK怎么用？Java Storage.STORAGE_FILE_LOCK使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.apache.hadoop.hdfs.server.common.Storage的用法示例。
在下文中一共展示了Storage.STORAGE_FILE_LOCK属性的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testJournalLocking
@Test (timeout = 10000)
public void testJournalLocking() throws Exception {
Assume.assumeTrue(journal.getStorage().getStorageDir(0).isLockSupported());
StorageDirectory sd = journal.getStorage().getStorageDir(0);
File lockFile = new File(sd.getRoot(), Storage.STORAGE_FILE_LOCK);
// Journal should be locked, since the format() call locks it.
GenericTestUtils.assertExists(lockFile);
journal.newEpoch(FAKE_NSINFO, 1);
try {
new Journal(conf, TEST_LOG_DIR, JID, StartupOption.REGULAR,
mockErrorReporter);
fail("Did not fail to create another journal in same dir");
} catch (IOException ioe) {
GenericTestUtils.assertExceptionContains(
"Cannot lock storage", ioe);
}
journal.close();
// Journal should no longer be locked after the close() call.
// Hence, should be able to create a new Journal in the same dir.
Journal journal2 = new Journal(conf, TEST_LOG_DIR, JID,
StartupOption.REGULAR, mockErrorReporter);
journal2.newEpoch(FAKE_NSINFO, 2);
journal2.close();
}