本文整理汇总了Java中org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils.SNAPSHOTINFO_FILE属性的典型用法代码示例。如果您正苦于以下问题：Java SnapshotDescriptionUtils.SNAPSHOTINFO_FILE属性的具体用法？Java SnapshotDescriptionUtils.SNAPSHOTINFO_FILE怎么用？Java SnapshotDescriptionUtils.SNAPSHOTINFO_FILE使用的例子？那么恭喜您, 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.hbase.snapshot.SnapshotDescriptionUtils的用法示例。
在下文中一共展示了SnapshotDescriptionUtils.SNAPSHOTINFO_FILE属性的2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: migrateSnapshots
public void migrateSnapshots() throws IOException {
//migrate snapshot dir
Path oldSnapshotDir = new Path(rootDir, HConstants.OLD_SNAPSHOT_DIR_NAME);
Path newSnapshotDir = new Path(rootDir, HConstants.SNAPSHOT_DIR_NAME);
if (fs.exists(oldSnapshotDir)) {
boolean foundOldSnapshotDir = false;
// Logic to verify old snapshot dir culled from SnapshotManager
// ignore all the snapshots in progress
FileStatus[] snapshots = fs.listStatus(oldSnapshotDir,
new SnapshotDescriptionUtils.CompletedSnaphotDirectoriesFilter(fs));
// loop through all the completed snapshots
for (FileStatus snapshot : snapshots) {
Path info = new Path(snapshot.getPath(), SnapshotDescriptionUtils.SNAPSHOTINFO_FILE);
// if the snapshot is bad
if (fs.exists(info)) {
foundOldSnapshotDir = true;
break;
}
}
if(foundOldSnapshotDir) {
LOG.info("Migrating snapshot dir");
if (!fs.rename(oldSnapshotDir, newSnapshotDir)) {
throw new IOException("Failed to move old snapshot dir "+
oldSnapshotDir+" to new "+newSnapshotDir);
}
}
}
}
示例2: getCompletedSnapshots
/**
* Gets the list of all completed snapshots.
* @param snapshotDir snapshot directory
* @return list of SnapshotDescriptions
* @throws IOException File system exception
*/
private List<SnapshotDescription> getCompletedSnapshots(Path snapshotDir) throws IOException {
List<SnapshotDescription> snapshotDescs = new ArrayList<SnapshotDescription>();
// first create the snapshot root path and check to see if it exists
FileSystem fs = master.getMasterFileSystem().getFileSystem();
if (snapshotDir == null) snapshotDir = SnapshotDescriptionUtils.getSnapshotsDir(rootDir);
// if there are no snapshots, return an empty list
if (!fs.exists(snapshotDir)) {
return snapshotDescs;
}
// ignore all the snapshots in progress
FileStatus[] snapshots = fs.listStatus(snapshotDir,
new SnapshotDescriptionUtils.CompletedSnaphotDirectoriesFilter(fs));
// loop through all the completed snapshots
for (FileStatus snapshot : snapshots) {
Path info = new Path(snapshot.getPath(), SnapshotDescriptionUtils.SNAPSHOTINFO_FILE);
// if the snapshot is bad
if (!fs.exists(info)) {
LOG.error("Snapshot information for " + snapshot.getPath() + " doesn't exist");
continue;
}
FSDataInputStream in = null;
try {
in = fs.open(info);
SnapshotDescription desc = SnapshotDescription.parseFrom(in);
snapshotDescs.add(desc);
} catch (IOException e) {
LOG.warn("Found a corrupted snapshot " + snapshot.getPath(), e);
} finally {
if (in != null) {
in.close();
}
}
}
return snapshotDescs;
}