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try to connect again if refused error found #747

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merged 4 commits into from
Dec 23, 2016
Merged

try to connect again if refused error found #747

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b7b7011
try to connect again if refused error found
backyes Dec 6, 2016
3ca5750
fix conficts
backyes Dec 22, 2016
5677ae0
fix conflicts not found by git diff
backyes Dec 22, 2016
5ae4339
follow comments: remove flags control
backyes Dec 23, 2016
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17 changes: 15 additions & 2 deletions paddle/pserver/LightNetwork.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ limitations under the License. */
#include <netinet/tcp.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <chrono>

#include <arpa/inet.h>
#include <net/if.h>
Expand Down Expand Up @@ -382,8 +383,20 @@ void SocketClient::TcpClient(const std::string &serverAddr, int serverPort) {
setOption(sockfd);

/// Now connect to the server
PCHECK(connect(sockfd, (sockaddr *)&serv_addr, sizeof(serv_addr)) >= 0)
<< "ERROR connecting to " << serverAddr;
int retry_second = 0;
int error = 0;
do {
error = connect(sockfd, (sockaddr *)&serv_addr, sizeof(serv_addr));
if (error == ECONNREFUSED) {
LOG(WARNING) << "connection refused by pserver, try again!";
if (retry_second++ >= 7) {
LOG(FATAL) << "connection refused by pserver, maybe pserver failed!";
}
std::this_thread::sleep_for(std::chrono::seconds(1));
} else {
PCHECK(error >= 0) << "ERROR connecting to " << serverAddr;
}
} while (error == ECONNREFUSED);

channel_.reset(new SocketChannel(sockfd, serverAddr));
tcpRdma_ = F_TCP;
Expand Down