Github user paul-guo- commented on a diff in the pull request:
https://github.com/apache/incubator-hawq/pull/928#discussion_r80015438
--- Diff: src/backend/resourcemanager/requesthandler.c ---
@@ -627,7 +627,11 @@ bool handleRMSEGRequestIMAlive(void **arg)
fts_client_ip_len = strlen(fts_client_ip);
inet_aton(fts_client_ip, &fts_client_addr);
fts_client_host = gethostbyaddr(&fts_client_addr, 4, AF_INET);
- Assert(fts_client_host != NULL);
+ if (fts_client_host == NULL)
+ {
+ elog(WARNING, "Failed to reverse DNS lookup for ip %s.",
fts_client_ip);
+ return true;
+ }
--- End diff --
If it is easy to modify we could use the replacement of gethostbyaddr().
By the way, why need to quit after "reverse dns lookup" failure. Should not
an IP address work also?
DESCRIPTION
The gethostbyname*() and gethostbyaddr*() functions are obsolete.
Applications
should use getaddrinfo(3) and getnameinfo(3) instead.
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