Examples with EncryptionKeyInfo org.apache.hadoop.hdfs.server.namenode.FSDirEncryptionZoneOp.EncryptionKeyInfo used on opensource projects

Example 1 with EncryptionKeyInfo

use of org.apache.hadoop.hdfs.server.namenode.FSDirEncryptionZoneOp.EncryptionKeyInfo in project hadoop by apache.

the class FSNamesystem method startFileInt.

private HdfsFileStatus startFileInt(String src, PermissionStatus permissions, String holder, String clientMachine, EnumSet<CreateFlag> flag, boolean createParent, short replication, long blockSize, CryptoProtocolVersion[] supportedVersions, boolean logRetryCache) throws IOException {
    if (NameNode.stateChangeLog.isDebugEnabled()) {
        StringBuilder builder = new StringBuilder();
        builder.append("DIR* NameSystem.startFile: src=").append(src).append(", holder=").append(holder).append(", clientMachine=").append(clientMachine).append(", createParent=").append(createParent).append(", replication=").append(replication).append(", createFlag=").append(flag).append(", blockSize=").append(blockSize).append(", supportedVersions=").append(Arrays.toString(supportedVersions));
        NameNode.stateChangeLog.debug(builder.toString());
    }
    if (!DFSUtil.isValidName(src) || FSDirectory.isExactReservedName(src) || (FSDirectory.isReservedName(src) && !FSDirectory.isReservedRawName(src) && !FSDirectory.isReservedInodesName(src))) {
        throw new InvalidPathException(src);
    }
    FSPermissionChecker pc = getPermissionChecker();
    INodesInPath iip = null;
    // until we do something that might create edits
    boolean skipSync = true;
    HdfsFileStatus stat = null;
    BlocksMapUpdateInfo toRemoveBlocks = null;
    checkOperation(OperationCategory.WRITE);
    writeLock();
    try {
        checkOperation(OperationCategory.WRITE);
        checkNameNodeSafeMode("Cannot create file" + src);
        iip = FSDirWriteFileOp.resolvePathForStartFile(dir, pc, src, flag, createParent);
        if (!FSDirErasureCodingOp.hasErasureCodingPolicy(this, iip)) {
            blockManager.verifyReplication(src, replication, clientMachine);
        }
        if (blockSize < minBlockSize) {
            throw new IOException("Specified block size is less than configured" + " minimum value (" + DFSConfigKeys.DFS_NAMENODE_MIN_BLOCK_SIZE_KEY + "): " + blockSize + " < " + minBlockSize);
        }
        FileEncryptionInfo feInfo = null;
        if (provider != null) {
            EncryptionKeyInfo ezInfo = FSDirEncryptionZoneOp.getEncryptionKeyInfo(this, iip, supportedVersions);
            // and/or EZ has not mutated
            if (ezInfo != null) {
                checkOperation(OperationCategory.WRITE);
                iip = FSDirWriteFileOp.resolvePathForStartFile(dir, pc, iip.getPath(), flag, createParent);
                feInfo = FSDirEncryptionZoneOp.getFileEncryptionInfo(dir, iip, ezInfo);
            }
        }
        // following might generate edits
        skipSync = false;
        toRemoveBlocks = new BlocksMapUpdateInfo();
        dir.writeLock();
        try {
            stat = FSDirWriteFileOp.startFile(this, iip, permissions, holder, clientMachine, flag, createParent, replication, blockSize, feInfo, toRemoveBlocks, logRetryCache);
        } catch (IOException e) {
            skipSync = e instanceof StandbyException;
            throw e;
        } finally {
            dir.writeUnlock();
        }
    } finally {
        writeUnlock("create");
        // They need to be sync'ed even when an exception was thrown.
        if (!skipSync) {
            getEditLog().logSync();
            if (toRemoveBlocks != null) {
                removeBlocks(toRemoveBlocks);
                toRemoveBlocks.clear();
            }
        }
    }
    return stat;
}