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Posted to issues@nifi.apache.org by GitBox <gi...@apache.org> on 2020/05/21 12:51:32 UTC
[GitHub] [nifi] granthenke commented on a change in pull request #4276: NIFI-7453 In PutKudu creating a new Kudu client when refreshing TGT
granthenke commented on a change in pull request #4276:
URL: https://github.com/apache/nifi/pull/4276#discussion_r428631210
##########
File path: nifi-nar-bundles/nifi-kudu-bundle/nifi-kudu-processors/src/main/java/org/apache/nifi/processors/kudu/AbstractKuduProcessor.java
##########
@@ -176,13 +176,25 @@ protected void flushKuduSession(final KuduSession kuduSession, boolean close, fi
}
}
- protected KerberosUser loginKerberosKeytabUser(final String principal, final String keytab) throws LoginException {
- final KerberosUser kerberosUser = new KerberosKeytabUser(principal, keytab);
+ protected KerberosUser loginKerberosKeytabUser(final String principal, final String keytab, ProcessContext context) throws LoginException {
+ final KerberosUser kerberosUser = new KerberosKeytabUser(principal, keytab) {
+ @Override
+ public synchronized boolean checkTGTAndRelogin() throws LoginException {
+ boolean didRelogin = super.checkTGTAndRelogin();
+
+ if (didRelogin) {
+ final KerberosAction<KuduClient> kerberosAction = new KerberosAction<>(this, () -> buildClient(context), getLogger());
+ AbstractKuduProcessor.this.kuduClient = kerberosAction.execute();
+ }
+
+ return didRelogin;
+ }
+ };
kerberosUser.login();
return kerberosUser;
}
- protected KerberosUser loginKerberosPasswordUser(final String principal, final String password) throws LoginException {
+ protected KerberosUser loginKerberosPasswordUser(final String principal, final String password, ProcessContext context) throws LoginException {
Review comment:
It looks used in `buildClient(context)` below.
##########
File path: nifi-nar-bundles/nifi-kudu-bundle/nifi-kudu-processors/src/main/java/org/apache/nifi/processors/kudu/AbstractKuduProcessor.java
##########
@@ -176,14 +176,38 @@ protected void flushKuduSession(final KuduSession kuduSession, boolean close, fi
}
}
- protected KerberosUser loginKerberosKeytabUser(final String principal, final String keytab) throws LoginException {
- final KerberosUser kerberosUser = new KerberosKeytabUser(principal, keytab);
+ protected KerberosUser loginKerberosKeytabUser(final String principal, final String keytab, ProcessContext context) throws LoginException {
+ final KerberosUser kerberosUser = new KerberosKeytabUser(principal, keytab) {
+ @Override
+ public synchronized boolean checkTGTAndRelogin() throws LoginException {
+ boolean didRelogin = super.checkTGTAndRelogin();
+
+ if (didRelogin) {
+ final KerberosAction<KuduClient> kerberosAction = new KerberosAction<>(this, () -> buildClient(context), getLogger());
+ AbstractKuduProcessor.this.kuduClient = kerberosAction.execute();
Review comment:
Should this call `close()` on the old client before creating a new one? Is that safe to do in a multithreaded context?
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