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Archive for the 'NIX Posts' Category

Cloudera: Azure: URLError:

Receiving the following when connecting external cloud servers from Azure, AWS, or GCP? [17/May/2020 13:29:50 +0000] 4894 Thread-13 https        ERROR    Failed to retrieve/store URL: https://cm-r01nn01.mws.mds.xyz:7183/cmf/pa    rcel/download/CDH-6.3.0-1.cdh6.3.0.p0.1279813-el7.parcel.torrent -> /opt/cloudera/parcel-cache/CDH-6.3.0-1.cdh6.3.0.p0.1279813-el7.parcel.    torrent

Cloudera: WrongHost: Peer certificate subjectAltName does not match host

Getting the following when configuring remote workers on Azure: [17/May/2020 13:09:38 +0000] 3529 MainThread agent        ERROR    Heartbeating to 123.123.123.123:7182 failed. Traceback (most recent call last):   File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/agent.py", line 1387, in _send_heartbeat     self.cfg.max_cert_depth)   File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/https.py", line 139, in _init_     self.conn.connect()   File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/M2Crypto/httpslib.py", line 69, in […]

Cloudera: Ncat: Connection timed out.

Getting this error when connecting Azure instances back to a Cloudera CM + CDH installation? [root@cm-awn01 ~]# nc -vz srv-c01.mws.mds.xyz 7191 Ncat: Version 7.50 ( https://nmap.org/ncat ) Ncat: Connection timed out. [root@cm-awn01 ~]# Ensure ports are defined correctly in the local firewall configuration: [root@cm-r01xs01 .ssh]# grep -Ei 7191 /etc/firewalld/zones/public.xml   <port protocol="tcp" port="7191"/>   <port protocol="udp" […]

Cloudera: Ncat: Connection refused.

Getting the following connecting from your Azure instance back to your Cloudera CM + CDH Cluster? [root@cm-awn01 ~]# nc -v 123.123.123.123 7183 Ncat: Version 7.50 ( https://nmap.org/ncat ) Ncat: Connection refused. The corresponding Cloudera Agent error looks like this: [17/May/2020 13:34:53 +0000] 5306 Thread-13 https        ERROR    Failed to retrieve/store URL: https://cm-r01nn01.mws.mds.xyz:7183/cmf/par […]

Importing Certificates Into the Truststore: Connection not protected

Getting this message? Connection not protected The security of your connection is reduced. Criminals can attempt to steal your data from the website. You are advised to leave this website. And you know this is a trusted site, such as a local HTTPS web server?  Then export the certificate and add it to your trusted […]

Connection not protected: Kaspersky Antivirus

Getting this? Connection not protected The security of your connection is reduced. Criminals can attempt to steal your data from the website. You are advised to leave this website. For regular web traffic, this is normal. But if you want to avoid this for a local HTTPS server you're running, then these are the steps […]

This site is not secure

Getting this? This site is not secure This might mean that someone’s trying to fool you or steal any info you send to the server. You should close this site immediately For regular web traffic, this is a valid warning message.  And you should be wary of sites that don't have valid certificates.  It's inadvisable […]

etcd: error validating peerURLs or etcd: request sent was ignored ( cluster ID mismatch )

Getting the following? etcd: health check for peer 83f149dc6ec1b00a could not connect: dial tcp 10.3.0.124:2380: connect: connection refused (prober "ROUND_TRIPPER_SNAPSHOT") or etcd: request sent was ignored (cluster ID mismatch: remote[a82b23223d9f684e]=314e5a8f7a211a07, local=47f62724bd585a9) or etcd: publish error: etcdserver: request timed out or etcd: error validating peerURLs {ClusterID:314e5a8f7a211a07 Members:[&{ID:c470debdfc4607fe RaftAttributes:{PeerURLs:[http://192.168.0.108:2380]} Attributes:{Name:etcd01 ClientURLs:[]}} &{ID:83f149dc6ec1b00a RaftAttributes:{PeerURLs:[http://10.3.0.124:2380]} Attributes:{Name:etcd02 ClientURLs:[http://10.3.0.124:2379]}} &{ID:a82b23223d9f684e RaftAttributes:{PeerURLs:[http://10.3.0.118:2380]} […]

Conflicting collector combinations in option list; please refer to the release notes for the combinations allowed

Getting this? Conflicting collector combinations in option list; please refer to the release notes for the combinations allowed It could be because of this parameter in conjunction with the rest of the GC options specified. ExecStart=/usr/bin/java -Xmx4096M -Xms2048M -XX:+UseG1GC -XX:MaxGCPauseMillis=200 -XX:+AlwaysPreTouch -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=4 -XX:+AggressiveOpts nogui -XX:+UnlockExperimentalVMOptions -XX:ActiveProcessorCount=4 -jar server.jar But that wasn't the […]

Windows 10: Cannot ping other VLAN’s / Subnets : Request timed out.

Getting this? C:\Users\tom>ping 10.0.0.1 Pinging 10.0.0.1 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for 10.0.0.1:     Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),


     
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