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HDFS-5857. TestWebHDFS#testNamenodeRestart fails intermittently with NPE. Contributed By Mit Desai. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1574683 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Haohui Mai 2014-03-05 21:51:24 +00:00
parent d963b3cd52
commit b46fbd0275
2 changed files with 17 additions and 5 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -683,6 +683,9 @@ Release 2.4.0 - UNRELEASED
HDFS-6051. HDFS cannot run on Windows since short-circuit shared memory
segment changes. (cmccabe)
HDFS-5857. TestWebHDFS#testNamenodeRestart fails intermittently with NPE.
(Mit Desai via wheat9)
BREAKDOWN OF HDFS-5698 SUBTASKS AND RELATED JIRAS
HDFS-5717. Save FSImage header in protobuf. (Haohui Mai via jing9)

19
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/web/resources/NamenodeWebHdfsMethods.java
View File

@ -164,6 +164,15 @@ public class NamenodeWebHdfsMethods {
response.setContentType(null);
}
private static NamenodeProtocols getRPCServer(NameNode namenode)
throws IOException {
final NamenodeProtocols np = namenode.getRpcServer();
if (np == null) {
throw new IOException("Namenode is in startup mode");
}
return np;
}
@VisibleForTesting
static DatanodeInfo chooseDatanode(final NameNode namenode,
final String path, final HttpOpParam.Op op, final long openOffset,
@ -188,7 +197,7 @@ public class NamenodeWebHdfsMethods {
|| op == GetOpParam.Op.GETFILECHECKSUM
|| op == PostOpParam.Op.APPEND) {
//choose a datanode containing a replica
final NamenodeProtocols np = namenode.getRpcServer();
final NamenodeProtocols np = getRPCServer(namenode);
final HdfsFileStatus status = np.getFileInfo(path);
if (status == null) {
throw new FileNotFoundException("File " + path + " not found.");
@ -424,7 +433,7 @@ public class NamenodeWebHdfsMethods {
final Configuration conf = (Configuration)context.getAttribute(JspHelper.CURRENT_CONF);
final NameNode namenode = (NameNode)context.getAttribute("name.node");
final NamenodeProtocols np = namenode.getRpcServer();
final NamenodeProtocols np = getRPCServer(namenode);
switch(op.getValue()) {
case CREATE:
@ -606,7 +615,7 @@ public class NamenodeWebHdfsMethods {
}
case CONCAT:
{
namenode.getRpcServer().concat(fullpath, concatSrcs.getAbsolutePaths());
getRPCServer(namenode).concat(fullpath, concatSrcs.getAbsolutePaths());
return Response.ok().build();
}
default:
@ -696,7 +705,7 @@ public class NamenodeWebHdfsMethods {
final BufferSizeParam bufferSize
) throws IOException, URISyntaxException {
final NameNode namenode = (NameNode)context.getAttribute("name.node");
final NamenodeProtocols np = namenode.getRpcServer();
final NamenodeProtocols np = getRPCServer(namenode);
switch(op.getValue()) {
case OPEN:
@ -905,7 +914,7 @@ public class NamenodeWebHdfsMethods {
switch(op.getValue()) {
case DELETE:
{
final boolean b = namenode.getRpcServer().delete(fullpath, recursive.getValue());
final boolean b = getRPCServer(namenode).delete(fullpath, recursive.getValue());
final String js = JsonUtil.toJsonString("boolean", b);
return Response.ok(js).type(MediaType.APPLICATION_JSON).build();
}