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https://issues.apache.org/jira/browse/HDFS-13815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16592155#comment-16592155
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Brahma Reddy Battula commented on HDFS-13815:
---------------------------------------------
Sorry for landing late.
Currently both RouterAdmin#*addMount*(String[],
int),RouterAdmin#*updateMount*(java.lang.String[], int) have same validation
for params expect order ( HASH for addMount where updateMount isn't having.
So,how about to extract to one class(inner) or Method..? So, that we can have
all the params one place and maintenance will easy.
I am thinking like below. Please correct me if I am wrong.
{code:java}
public boolean addMount(String[] parameters, int i) throws IOException {
ValidateParams params = new ValidateParams(parameters, i,"addMount" ).invoke();
return addMount(params.getMount(), params.getNss(), params.getDest(),
params.isReadOnly(), DestinationOrder.HASH,
new ACLEntity(params.getOwner(), params.getGroup(),
params.getMode()));
}
public boolean updateMount(String[] parameters, int i) throws IOException {
ValidateParams params = new ValidateParams(parameters, i,"updateMount"
).invoke();
return updateMount(params.getMount(), params.getNss(),
params.getDest(), params.isReadOnly(), params.getOrder(),
new ACLEntity(params.getOwner(), params.getGroup(),
params.getMode()));
}
{code}
{code:java}
private class ValidateParams {
private String[] parameters;
private int i;
private String mount;
private String[] nss;
private String dest;
private boolean readOnly;
private String owner;
private String group;
private FsPermission mode;
private DestinationOrder order;
public ValidateParams(String[] parameters, int i, String cmd) {
this.parameters = parameters;
this.i = i;
}
public String getMount() {
return mount;
}
public String[] getNss() {
return nss;
}
public String getDest() {
return dest;
}
public boolean isReadOnly() {
return readOnly;
}
public String getOwner() {
return owner;
}
public String getGroup() {
return group;
}
public FsPermission getMode() {
return mode;
}
public DestinationOrder getOrder() {
return order;
}
public ValidateParams invoke() {
// Mandatory parameters
mount = parameters[i++];
nss = parameters[i++].split(",");
dest = parameters[i++];
// Optional parameters
readOnly = false;
owner = null;
group = null;
mode = null;
order = DestinationOrder.HASH;
while (i < parameters.length) {
if (parameters[i].equals("-readonly")) {
readOnly = true;
} else if (parameters[i].equals("-order")) {
i++;
try {
order = DestinationOrder.valueOf(parameters[i]);
} catch(Exception e) {
System.err.println("Cannot parse order: " + parameters[i]);
}
} else if (parameters[i].equals("-owner")) {
i++;
owner = parameters[i];
} else if (parameters[i].equals("-group")) {
i++;
group = parameters[i];
} else if (parameters[i].equals("-mode")) {
i++;
short modeValue = Short.parseShort(parameters[i], 8);
mode = new FsPermission(modeValue);
}else{
printUsage(cmd);
}
i++;
}
return this;
}
{code}
> RBF: Add check to order command
> -------------------------------
>
> Key: HDFS-13815
> URL: https://issues.apache.org/jira/browse/HDFS-13815
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: federation
> Affects Versions: 3.0.0
> Reporter: Soumyapn
> Assignee: Ranith Sardar
> Priority: Major
> Attachments: HDFS-13815-001.patch, HDFS-13815-002.patch,
> HDFS-13815-003.patch, HDFS-13815-004.patch
>
>
> No check being done on order command.
> It says successfully updated mount table if we don't specify order command
> and it is not updated in mount table
> Execute the dfsrouter update command with the below scenarios.
> 1. ./hdfs dfsrouteradmin -update /apps3 hacluster,ns2 /tmp6 RANDOM
> 2. ./hdfs dfsrouteradmin -update /apps3 hacluster,ns2 /tmp6 -or RANDOM
> 3. ./hdfs dfsrouteradmin -update /apps3 hacluster,ns2 /tmp6 -ord RANDOM
> 4. ./hdfs dfsrouteradmin -update /apps3 hacluster,ns2 /tmp6 -orde RANDOM
>
> The console message says, Successfully updated mount point. But it is not
> updated in the mount table.
>
> Expected Result:
> Exception on console as the order command is missing/not written properl
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