Github user hyunsik commented on a diff in the pull request:
https://github.com/apache/tajo/pull/621#discussion_r34963696
--- Diff:
tajo-client/src/main/java/org/apache/tajo/client/SessionConnection.java ---
@@ -98,33 +106,49 @@ public SessionConnection(@NotNull ServiceTracker
tracker, @Nullable String baseD
this.manager.setRetries(properties.getInt(RpcConstants.RPC_CLIENT_RETRY_MAX,
RpcConstants.DEFAULT_RPC_RETRIES));
this.userInfo = UserRoleInfo.getCurrentUser();
- try {
- this.client = getTajoMasterConnection();
- } catch (ServiceException e) {
- throw new IOException(e);
- }
+ this.client = getTajoMasterConnection();
}
public Map<String, String> getClientSideSessionVars() {
return Collections.unmodifiableMap(sessionVarsCache);
}
- public synchronized NettyClientBase getTajoMasterConnection() throws
ServiceException {
- if (client != null && client.isConnected()) return client;
- else {
+ public synchronized NettyClientBase getTajoMasterConnection() throws
SQLException {
+
+ if (client != null && client.isConnected()) {
+ return client;
+ } else {
+
try {
RpcClientManager.cleanup(client);
+
// Client do not closed on idle state for support high available
- this.client = manager.newClient(getTajoMasterAddr(),
TajoMasterClientProtocol.class, false,
- manager.getRetries(), 0, TimeUnit.SECONDS, false);
+ this.client = manager.newClient(
+ getTajoMasterAddr(),
+ TajoMasterClientProtocol.class,
+ false,
+ manager.getRetries(),
+ 0,
+ TimeUnit.SECONDS,
+ false);
connections.incrementAndGet();
- } catch (Exception e) {
- throw new ServiceException(e);
+
+ } catch (Throwable t) {
+ throw SQLExceptionUtil.makeUnableToEstablishConnection(t);
}
+
return client;
}
}
+ protected BlockingInterface getTMStub() throws SQLException {
--- End diff --
I won't use TM for Tajo Metadata Connection. We can use TM only for
TajoMaster. How do you think?
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