/// <summary>Modify an existing cache pool.</summary>
/// <param name="info">The request to modify a cache pool.</param>
/// <exception cref="System.IO.IOException">
///
/// If the request could not be completed.
/// </exception>
public virtual void ModifyCachePool(CachePoolInfo info)
{
dfs.ModifyCachePool(info);
}
/// <exception cref="System.IO.IOException"/>
public virtual int Run(Configuration conf, IList <string> args)
{
string owner = StringUtils.PopOptionWithArgument("-owner", args);
string group = StringUtils.PopOptionWithArgument("-group", args);
string modeString = StringUtils.PopOptionWithArgument("-mode", args);
int mode = (modeString == null) ? null : System.Convert.ToInt32(modeString, 8);
string limitString = StringUtils.PopOptionWithArgument("-limit", args);
long limit = AdminHelper.ParseLimitString(limitString);
string maxTtlString = StringUtils.PopOptionWithArgument("-maxTtl", args);
long maxTtl;
try
{
maxTtl = AdminHelper.ParseTtlString(maxTtlString);
}
catch (IOException e)
{
System.Console.Error.WriteLine("Error while parsing maxTtl value: " + e.Message);
return(1);
}
string name = StringUtils.PopFirstNonOption(args);
if (name == null)
{
System.Console.Error.WriteLine("You must specify a name when creating a " + "cache pool."
);
return(1);
}
if (!args.IsEmpty())
{
System.Console.Error.Write("Can't understand arguments: " + Joiner.On(" ").Join(args
) + "\n");
System.Console.Error.WriteLine("Usage is " + GetShortUsage());
return(1);
}
bool changed = false;
CachePoolInfo info = new CachePoolInfo(name);
if (owner != null)
{
info.SetOwnerName(owner);
changed = true;
}
if (group != null)
{
info.SetGroupName(group);
changed = true;
}
if (mode != null)
{
info.SetMode(new FsPermission(mode));
changed = true;
}
if (limit != null)
{
info.SetLimit(limit);
changed = true;
}
if (maxTtl != null)
{
info.SetMaxRelativeExpiryMs(maxTtl);
changed = true;
}
if (!changed)
{
System.Console.Error.WriteLine("You must specify at least one attribute to " + "change in the cache pool."
);
return(1);
}
DistributedFileSystem dfs = AdminHelper.GetDFS(conf);
try
{
dfs.ModifyCachePool(info);
}
catch (IOException e)
{
System.Console.Error.WriteLine(AdminHelper.PrettifyException(e));
return(2);
}
System.Console.Out.Write("Successfully modified cache pool " + name);
string prefix = " to have ";
if (owner != null)
{
System.Console.Out.Write(prefix + "owner name " + owner);
prefix = " and ";
}
if (group != null)
{
System.Console.Out.Write(prefix + "group name " + group);
prefix = " and ";
}
if (mode != null)
{
System.Console.Out.Write(prefix + "mode " + new FsPermission(mode));
prefix = " and ";
}
if (limit != null)
{
System.Console.Out.Write(prefix + "limit " + limit);
prefix = " and ";
}
if (maxTtl != null)
{
System.Console.Out.Write(prefix + "max time-to-live " + maxTtlString);
}
System.Console.Out.Write("\n");
return(0);
}