From a6bb56847678a34b9d660a53a05b8dd920345aab Mon Sep 17 00:00:00 2001 From: Toma Bilius Date: Wed, 24 Feb 2021 19:23:57 +0200 Subject: ELCCR-1328 Remove mention about split-brain problem. It is not clear at this point how the system behaves in this case. Change-Id: I0cdb7b6d2cd59282a624a31a480e366a9830249d Signed-off-by: Toma Bilius --- .../doc/advanced_configurations.xml | 65 +++++++++++----------- 1 file changed, 33 insertions(+), 32 deletions(-) (limited to 'doc') diff --git a/doc/book-enea-nfv-access-getting-started/doc/advanced_configurations.xml b/doc/book-enea-nfv-access-getting-started/doc/advanced_configurations.xml index c85f30d..2a479b9 100644 --- a/doc/book-enea-nfv-access-getting-started/doc/advanced_configurations.xml +++ b/doc/book-enea-nfv-access-getting-started/doc/advanced_configurations.xml @@ -440,22 +440,21 @@ node0.1048576kB = 3 The setup consists of two sub-clusters, placed in different - geographical locations. Each sub-cluster contains three MariaDB servers, - thus avoiding the split-brain problem. In this example, two of the - machines are running only MariaDB, while the rest are hosting a MariaDB - server and an Enea uCPE Manager instance. The entire network is hidden behind a - firewall that performs NAT. While in protection (cluster) mode, the - Enea uCPE Manager instances promote a Virtual IP (VIP) that represents the IP address of the - entire cluster. The firewall in this case will allocate a public IP for - the outside world that will be translated into the VIP. Also in this - example, the traffic towards the cluster from outside the firewall is done - through HTTPS, which will be translated to HTTP inside the private - network. + geographical locations, each consisting of three MariaDB servers. In this + example, two of the machines are running only MariaDB, while the rest are + hosting a MariaDB server and an Enea uCPE Manager instance. The entire + network is hidden behind a firewall that performs NAT. While in protection + (cluster) mode, the Enea uCPE Manager instances promote a Virtual IP (VIP) + that represents the IP address of the entire cluster. The firewall in this + case will allocate a public IP for the outside world that will be + translated into the VIP. Also in this example, the traffic towards the + cluster from outside the firewall is done through HTTPS, which will be + translated to HTTP inside the private network. - By default, communication to the Enea uCPE Manager is done with HTTPS. - To enable HTTP, go to System, Configuration, click on the By default, communication to the Enea uCPE Manager is done with + HTTPS. To enable HTTP, go to System, + Configuration, click on the Web Access tab and check the Enable HTTP checkbox. @@ -510,11 +509,11 @@ node0.1048576kB = 3 Please refer to Firewall Configuration in the - Firewall Configuration in the Manual. - In addition, the following configuration is needed: + xpointer="element(book_enea_nfv_access_getting_started/1)" /> + Manual. In addition, the following configuration is needed: @@ -535,7 +534,7 @@ SELINUXTYPE=targeted The following ports should be opened in the local firewall (not the one doing NAT), for each Enea uCPE Manager machine: - + Ports for Enea uCPE Manager Machines @@ -717,10 +716,10 @@ gpgcheck=1 - For more information about setting the repository, - consult Downloads - - Setting up MariaDB Repositories. + For more information about setting the repository, consult + Downloads + - Setting up MariaDB Repositories. @@ -745,8 +744,8 @@ galera-4-26.4.6-1.el7.centos.x86_64 - Change the following configuration in - /etc/my.cnf.d/wsrep.cnf: + Change the following configuration in + /etc/my.cnf.d/wsrep.cnf: # Full path to wsrep provider library or 'none' wsrep_provider=/usr/lib64/galera-4/libgalera_smm.so @@ -877,11 +876,12 @@ TO 'enea'@'%' IDENTIFIED BY 'somepassword' WITH GRANT OPTION; PostgreSQL in the - Manual, for details on how to install and configure Java OpenJDK. - - Make sure the JAVA_HOME variable points to the - OpenJDK 11 installation: + xpointer="element(book_enea_nfv_access_getting_started/1)" /> + Manual, for details on how to install and configure Java + OpenJDK. + + Make sure the JAVA_HOME variable points to + the OpenJDK 11 installation: [root@localhost ~]# echo $JAVA_HOME /usr/lib/jvm/java-11-openjdk-11.0.10.0.9-0.el7_9.x86_64 @@ -893,8 +893,9 @@ TO 'enea'@'%' IDENTIFIED BY 'somepassword' WITH GRANT OPTION; mode These steps must be taken on each of the CentOS 7 machines that - will host the Enea uCPE Manager. The Enea uCPE Manager will be installed - and the setup for the external database cluster will be prepared. + will host the Enea uCPE Manager. The Enea uCPE Manager will be + installed and the setup for the external database cluster will be + prepared. As the root user, go to the distribution folder of the Enea uCPE Manager, and run: -- cgit v1.2.3-54-g00ecf