kangkaisen closed pull request #527: Add retry for TCP CLOSE_WAIT in
AgentBatchTask
URL: https://github.com/apache/incubator-doris/pull/527
This is a PR merged from a forked repository.
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diff --git a/fe/src/main/java/org/apache/doris/task/AgentBatchTask.java
b/fe/src/main/java/org/apache/doris/task/AgentBatchTask.java
index 4d429f9c..a67800db 100644
--- a/fe/src/main/java/org/apache/doris/task/AgentBatchTask.java
+++ b/fe/src/main/java/org/apache/doris/task/AgentBatchTask.java
@@ -46,6 +46,7 @@
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
+import org.apache.thrift.transport.TTransportException;
import java.util.HashMap;
import java.util.LinkedList;
@@ -115,13 +116,39 @@ public void run() {
List<AgentTask> tasks = this.backendIdToTasks.get(backendId);
// create AgentClient
address = new TNetworkAddress(backend.getHost(),
backend.getBePort());
+
client = ClientPool.backendPool.borrowObject(address);
List<TAgentTaskRequest> agentTaskRequests = new
LinkedList<TAgentTaskRequest>();
for (AgentTask task : tasks) {
agentTaskRequests.add(toAgentTaskRequest(task));
}
- client.submit_tasks(agentTaskRequests);
+
+ int count = 0;
+ int retryCount = 1;
+ boolean needRetry = true;
+ while (needRetry && count++ <= retryCount) {
+ needRetry = false;
+ try {
+ client.submit_tasks(agentTaskRequests);
+ } catch (TTransportException e) {
+ //handle the TCP connection is CLOSE_WAIT status
+ if (e.getMessage() == null && (e.getType() ==
TTransportException.END_OF_FILE)) {
+ LOG.warn("Maybe the BE {} : {} restarted just now,
will retry", backendId, backend.getHost());
+ needRetry = true;
+
+ //close the TCP connection
+ ClientPool.backendPool.invalidateObject(address,
client);
+
+ //create a new TCP connection
+ address = new TNetworkAddress(backend.getHost(),
backend.getBePort());
+ client =
ClientPool.backendPool.borrowObject(address);
+ } else {
+ throw e;
+ }
+ }
+ }
+
if (LOG.isDebugEnabled()) {
for (AgentTask task : tasks) {
LOG.debug("send task: type[{}], backend[{}],
signature[{}]",
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