zhouxy108/fastdfs-client-java
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feature:add tracker server fail over

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This commit is contained in:
tanyawen01770
2023-01-28 15:02:40 +08:00
parent 9cc79ed75d
commit 8d966af4a4
7 changed files with 131 additions and 116 deletions
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88
src/main/java/org/csource/fastdfs/TrackerClient.java
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@@ -71,6 +71,45 @@ public class TrackerClient {
return this.getStoreStorage(trackerServer, groupName);
}
public Connection getConnection(TrackerServer trackerServer) throws IOException, MyException {
if (ClientGlobal.g_fail_over_retry_count > 0) {
int retryCount = 0;
do {
try {
trackerServer = getTrackerServer();
if (trackerServer == null) {
throw new MyException("tracker server is empty!");
}
return trackerServer.getConnection();
} catch (IOException e) {
if (retryCount <= ClientGlobal.g_fail_over_retry_count) {
//allow retry ignore exception
System.err.println("trackerServer get connection error, get connection from next tracker, emsg:" + e.getMessage());
} else {
throw e;
}
} catch (MyException e) {
if (retryCount <= ClientGlobal.g_fail_over_retry_count) {
System.err.println("trackerServer get connection error, get connection from next tracker, emsg:" + e.getMessage());
//allow retry ignore exception
} else {
throw e;
}
}
} while (retryCount++ <= ClientGlobal.g_fail_over_retry_count);
} else {
if (trackerServer == null) {
trackerServer = getTrackerServer();
if (trackerServer == null) {
throw new MyException("tracker server is empty!");
}
}
trackerServer.getConnection();
}
return null;
}
/**
* query storage server to upload file
*
@@ -85,12 +124,7 @@ public class TrackerClient {
byte cmd;
int out_len;
byte store_path;
Connection connection;
if (trackerServer == null) {
trackerServer = getTrackerServer();
}
connection = trackerServer.getConnection();
Connection connection = getConnection(trackerServer);
OutputStream out = connection.getOutputStream();
try {
@@ -170,16 +204,7 @@ public class TrackerClient {
int port;
byte cmd;
int out_len;
Connection connection;
if (trackerServer == null) {
trackerServer = getTrackerServer();
if (trackerServer == null) {
return null;
}
}
connection = trackerServer.getConnection();
Connection connection = getConnection(trackerServer);
OutputStream out = connection.getOutputStream();
try {
@@ -343,15 +368,7 @@ public class TrackerClient {
int len;
String ip_addr;
int port;
Connection connection;
if (trackerServer == null) {
trackerServer = getTrackerServer();
if (trackerServer == null) {
return null;
}
}
connection = trackerServer.getConnection();
Connection connection = getConnection(trackerServer);
OutputStream out = connection.getOutputStream();
try {
@@ -473,16 +490,7 @@ public class TrackerClient {
byte cmd;
int out_len;
byte store_path;
Connection connection;
if (trackerServer == null) {
trackerServer = getTrackerServer();
if (trackerServer == null) {
return null;
}
}
connection = trackerServer.getConnection();
Connection connection = getConnection(trackerServer);
OutputStream out = connection.getOutputStream();
try {
@@ -548,15 +556,7 @@ public class TrackerClient {
byte[] bGroupName;
byte[] bs;
int len;
Connection connection;
if (trackerServer == null) {
trackerServer = getTrackerServer();
if (trackerServer == null) {
return null;
}
}
connection = trackerServer.getConnection();
Connection connection = getConnection(trackerServer);
OutputStream out = connection.getOutputStream();
try {