abstractdog commented on code in PR #3626:
URL: https://github.com/apache/hive/pull/3626#discussion_r1041218053
##########
llap-client/src/java/org/apache/hadoop/hive/llap/tez/LlapProtocolClientProxy.java:
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@@ -94,6 +105,35 @@ public void sendUpdateFragment(final
UpdateFragmentRequestProto request, final S
queueRequest(new SendUpdateFragmentCallable(nodeId, request, callback));
}
+ protected void initPeriodicTokenRefresh(Configuration conf) {
+ if (!UserGroupInformation.isSecurityEnabled()) {
+ return;
+ }
+ long tokenRenewInterval =
+ HiveConf.getTimeVar(conf,
ConfVars.LLAP_DELEGATION_TOKEN_RENEW_INTERVAL, TimeUnit.SECONDS);
+ // if the tokenRenewInterval is low (e.g. testing), let's use the half of
it as interval instead of the constant
+ long interval = Math.min(tokenRenewInterval / 2,
LLAP_TOKEN_REFRESH_INTERVAL_IN_AM_SECONDS);
+
+ LOG.info("Initializing periodic token refresh in AM, will run in every
{}s", interval);
+ tokenClient = new LlapTokenClient(conf);
+
+ newTokenChecker.scheduleAtFixedRate(() -> {
+ fetchToken();
+ }, 0, interval, TimeUnit.SECONDS);
Review Comment:
ack, nice catch
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