private void format(StorageDirectory bpSdir, NamespaceInfo nsInfo) throws IOException {
LOG.info("Formatting block pool " + blockpoolID + " directory " + bpSdir.getCurrentDir());
bpSdir.clearDirectory(); // create directory
this.layoutVersion = HdfsConstants.DATANODE_LAYOUT_VERSION;
this.cTime = nsInfo.getCTime();
this.namespaceID = nsInfo.getNamespaceID();
this.blockpoolID = nsInfo.getBlockPoolID();
writeProperties(bpSdir);
}
void format(StorageDirectory sd, NamespaceInfo nsInfo) throws IOException {
sd.clearDirectory(); // create directory
this.layoutVersion = HdfsConstants.LAYOUT_VERSION;
this.clusterID = nsInfo.getClusterID();
this.namespaceID = nsInfo.getNamespaceID();
this.cTime = 0;
// store storageID as it currently is
writeProperties(sd);
}
void format(StorageDirectory sd, NamespaceInfo nsInfo, String datanodeUuid) throws IOException {
sd.clearDirectory();
this.layoutVersion = HdfsConstants.DATANODE_LAYOUT_VERSION;
this.clusterID = nsInfo.getClusterID();
this.namespaceID = nsInfo.getNamespaceID();
this.cTime = 0;
setDatanodeUuid(datanodeUuid);
if (sd.getStorageUuid() == null) {
// 分配新的 Storage UUID.
sd.setStorageUuid(DatanodeStorage.generateUuid());
}
writeProperties(sd);
}
