/// <summary>Get the setting from configuration.</summary>
public static ReplaceDatanodeOnFailure Get(Configuration conf)
{
ReplaceDatanodeOnFailure.Policy policy = GetPolicy(conf);
bool bestEffort = conf.GetBoolean(DFSConfigKeys.DfsClientWriteReplaceDatanodeOnFailureBestEffortKey
, DFSConfigKeys.DfsClientWriteReplaceDatanodeOnFailureBestEffortDefault);
return(new ReplaceDatanodeOnFailure(policy, bestEffort));
}
/// <summary>Write the setting to configuration.</summary>
public static void Write(ReplaceDatanodeOnFailure.Policy policy, bool bestEffort,
Configuration conf)
{
conf.SetBoolean(DFSConfigKeys.DfsClientWriteReplaceDatanodeOnFailureEnableKey, policy
!= ReplaceDatanodeOnFailure.Policy.Disable);
conf.Set(DFSConfigKeys.DfsClientWriteReplaceDatanodeOnFailurePolicyKey, policy.ToString
());
conf.SetBoolean(DFSConfigKeys.DfsClientWriteReplaceDatanodeOnFailureBestEffortKey
, bestEffort);
}
private static ReplaceDatanodeOnFailure.Policy GetPolicy(Configuration conf)
{
bool enabled = conf.GetBoolean(DFSConfigKeys.DfsClientWriteReplaceDatanodeOnFailureEnableKey
, DFSConfigKeys.DfsClientWriteReplaceDatanodeOnFailureEnableDefault);
if (!enabled)
{
return(ReplaceDatanodeOnFailure.Policy.Disable);
}
string policy = conf.Get(DFSConfigKeys.DfsClientWriteReplaceDatanodeOnFailurePolicyKey
, DFSConfigKeys.DfsClientWriteReplaceDatanodeOnFailurePolicyDefault);
for (int i = 1; i < ReplaceDatanodeOnFailure.Policy.Values().Length; i++)
{
ReplaceDatanodeOnFailure.Policy p = ReplaceDatanodeOnFailure.Policy.Values()[i];
if (Sharpen.Runtime.EqualsIgnoreCase(p.ToString(), policy))
{
return(p);
}
}
throw new HadoopIllegalArgumentException("Illegal configuration value for " + DFSConfigKeys
.DfsClientWriteReplaceDatanodeOnFailurePolicyKey + ": " + policy);
}
public ReplaceDatanodeOnFailure(ReplaceDatanodeOnFailure.Policy policy, bool bestEffort
)
{
this.policy = policy;
this.bestEffort = bestEffort;
}
