HDFS-11014: libhdfs++: Make connection to HA clusters faster. Contributed by James Clampffer.
This commit is contained in:
parent
6dd47cae86
commit
59a3926946
@ -96,7 +96,7 @@ struct Options {
|
||||
* Client failover attempts before failover gives up
|
||||
**/
|
||||
int failover_max_retries;
|
||||
static const unsigned int kDefaultFailoverMaxRetries = 15;
|
||||
static const unsigned int kDefaultFailoverMaxRetries = 4;
|
||||
|
||||
/**
|
||||
* Client failover attempts before failover gives up if server
|
||||
|
@ -60,7 +60,12 @@ RetryAction FixedDelayWithFailover::ShouldRetry(const Status &s, uint64_t retrie
|
||||
{
|
||||
// Try connecting to another NN in case this one keeps timing out
|
||||
// Can add the backoff wait specified by dfs.client.failover.sleep.base.millis here
|
||||
return RetryAction::failover(delay_);
|
||||
if(failovers == 0) {
|
||||
// No delay on first failover if it looks like the NN was bad.
|
||||
return RetryAction::failover(0);
|
||||
} else {
|
||||
return RetryAction::failover(delay_);
|
||||
}
|
||||
}
|
||||
|
||||
if(retries < max_retries_ && failovers < max_failover_retries_) {
|
||||
|
@ -365,7 +365,7 @@ void RpcEngine::RpcCommsError(
|
||||
ResolvedNamenodeInfo new_active_nn_info =
|
||||
ha_persisted_info_->GetFailoverAndUpdate(last_endpoints_[0]/*reverse lookup*/);
|
||||
|
||||
LOG_INFO(kRPC, << "Going to try connecting to alternate Datanode: " << new_active_nn_info.uri.str());
|
||||
LOG_INFO(kRPC, << "Going to try connecting to alternate Namenode: " << new_active_nn_info.uri.str());
|
||||
|
||||
if(ha_persisted_info_->is_resolved()) {
|
||||
last_endpoints_ = new_active_nn_info.endpoints;
|
||||
|
Loading…
Reference in New Issue
Block a user