Merge pull request #59 from varkoly/SLE-15-SP3

Check if HANA DB is running on the nodes

.github/workflows/ci.yml

@@ -24,15 +24,15 @@ jobs:
 
     - name: Unit Tests
       run: rake test:unit
-      # enable code coverage reporting
+      # disable code coverage reporting
       env:
-        COVERAGE: 1
+        COVERAGE: 0
 
     # send the coverage report to coveralls.io
-    - name: Coveralls Report
-      uses: coverallsapp/github-action@master
-      with:
-        github-token: ${{ secrets.GITHUB_TOKEN }}
+    #- name: Coveralls Report
+    #  uses: coverallsapp/github-action@master
+    #  with:
+    #    github-token: ${{ secrets.GITHUB_TOKEN }}
 
   Package:
     runs-on: ubuntu-latest

package/yast2-sap-ha.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Feb  6 08:58:53 UTC 2025 - Peter Varkoly <[email protected]>
+
+- yast sap_ha should check if HDB is running on primary
+  (bsc#1235773) Build in a check if the DB is running on both nodes.
+- 4.3.1 
+
 -------------------------------------------------------------------
 Mon Aug  7 05:06:22 UTC 2023 - Peter Varkoly <[email protected]>
 

package/yast2-sap-ha.spec

@@ -17,7 +17,7 @@
 
 
 Name:           yast2-sap-ha
-Version:        4.3.0
+Version:        4.3.1
 Release:        0
 
 BuildArch:      noarch

src/data/sap_ha/help_prereq_hana_su_co.html

@@ -5,6 +5,7 @@ <h3>SAP HANA System Replication Scale Up: Cost-Optimized</h3>
         There are two machines with SAP HANA installed.
         <br/> Note that the machine you run the wizard on becomes the primary node in the cluster.
     </li>
+    <li>Verify that both databases are up and running.</li>
     <li>
         You have created one of the following:
         <ul type="square">

src/data/sap_ha/help_prereq_hana_su_co_azure.html

@@ -18,6 +18,7 @@ <h3>SAP HANA System Replication Scale Up: Cost-Optimized in Microsoft&reg; Azure
         There are two machines with SAP HANA installed.
         <br/> Note that the machine you run the wizard on becomes the primary node in the cluster.
     </li>
+    <li>Verify that both databases are up and running.</li>
     <li>
         The master node SSH public key is authorized for SSH access to the secondary node. This is needed when SSH password access is disabled, which is the default on Microsoft Azure.
     </li>

src/data/sap_ha/help_prereq_hana_su_mt.html

@@ -5,6 +5,7 @@ <h3>SAP HANA System Replication Scale Up: Multi-Tier</h3>
         There are two machines with SAP HANA installed.
         <br> Note that the machine you run the wizard on becomes the primary node in the cluster.
     </li>
+    <li>Verify that both databases are up and running.</li>
     <li>
         You have created one of the following:
         <ul type="square">

src/data/sap_ha/help_prereq_hana_su_mt_azure.html

@@ -18,6 +18,7 @@ <h3>SAP HANA System Replication Scale Up: Multi-Tier in Microsoft&reg; Azure&reg
         There are two machines with SAP HANA installed.
         <br> Note that the machine you run the wizard on becomes the primary node in the cluster.
     </li>
+    <li>Verify that both databases are up and running.</li>
     <li>
         The master node SSH public key is authorized for SSH access to the secondary node. This is needed when SSH password access is disabled, which is the default on Microsoft Azure.
     </li>

src/data/sap_ha/help_prereq_hana_su_po.html

@@ -5,6 +5,7 @@ <h3>SAP HANA System Replication Scale Up: Performance-Optimized</h3>
         There are two machines with SAP HANA installed.
         <br> Note that the machine you run the wizard on becomes the primary node in the cluster.
     </li>
+    <li>Verify that both databases are up and running.</li>
     <li>
         You have created one of the following:
         <ul type="square">

src/data/sap_ha/help_prereq_hana_su_po_azure.html

@@ -18,6 +18,7 @@ <h3>SAP HANA System Replication Scale Up: Performance-Optimized in Microsoft&reg
         There are two machines with SAP HANA installed.
         <br> Note that the machine you run the wizard on becomes the primary node in the cluster.
     </li>
+    <li>Verify that both databases are up and running.</li>
     <li>
         The master node SSH public key is authorized for SSH access to the secondary node. This is needed when SSH password access is disabled, which is the default on Microsoft Azure.
     </li>

src/lib/sap_ha/configuration/cluster.rb

@@ -247,6 +247,13 @@ def other_nodes
         ips
       end
 
+      # return all IPs of the first ring
+      def all_nodes
+        ips = @nodes.map { |_, n| n[:ip_ring1] }
+        return [] if ips.any?(&:empty?)
+        ips
+      end 
+
       def set_host_password(ip, password)
         node = @nodes.values.find { |v| v[:ip_ring1] == ip }
         if node.nil?

src/lib/sap_ha/configuration/hana.rb

@@ -111,6 +111,7 @@ def configured?
 
       def validate(verbosity = :verbose)
         SemanticChecks.instance.check(verbosity) do |check|
+          check.hana_is_running(@system_id, @instance, @global_config.cluster.all_nodes)
           check.ipv4(@virtual_ip, "Virtual IP")
           check.nonneg_integer(@virtual_ip_mask, "Virtual IP mask")
           check.integer_in_range(@virtual_ip_mask, 1, 32, "CIDR mask has to be between 1 and 32.",

src/lib/sap_ha/semantic_checks.rb

@@ -22,6 +22,7 @@
 require "sap_ha/exceptions"
 require "yast"
 require "erb"
+require "sap_ha/system/shell_commands"
 
 Yast.import "IP"
 Yast.import "Hostname"
@@ -31,6 +32,7 @@ module SapHA
   class SemanticChecks
     include Singleton
     include Yast::Logger
+    include SapHA::System::ShellCommands
 
     attr_accessor :silent
     attr_reader :checks_passed
@@ -264,6 +266,28 @@ def non_empty_string(value, message, field_name, hide_value = false)
       report_error(flag, message || "The value must be a non-empty string", field_name, shown_value)
     end
 
+    def hana_is_running(system_id, instance_number, nodes)
+      flag = true
+      message = ''
+      my_ips = SapHA::System::Network.ip_addresses
+      procname = "hdb.sap#{system_id.upcase}_HDB#{instance_number}"
+      if @no_test
+        nodes.each do |node|
+          log.debug("node #{node} #{my_ips}")
+          if my_ips.include?(node)
+            status = exec_status("pidof", procname)
+          else
+            status = exec_status("ssh", "-o", "StrictHostKeyChecking=no", node, "pidof", procname)
+          end
+          if status != 0
+            flag = false
+            message += "<br>No SAP HANA #{system_id} is running on #{node}"
+          end
+        end
+      end
+      report_error(flag, message, '', '')
+    end
+
     # Check if string is a block device
     # @param value [String] device path
     def block_device(value, field_name)
@@ -343,11 +367,10 @@ def error_string(field_name, explanation, value = nil)
       explanation = explanation[0..-2] if explanation.end_with? "."
       explanation = explanation
       if field_name.empty?
-        "Invalid input: #{explanation}"
+        "Error detected: #{explanation}"
       elsif value.nil? || (value.is_a?(::String) && value.empty?)
         "Invalid entry for #{field_name}: #{explanation}."
       else
-
         "Invalid entry for #{field_name} (\"#{ERB::Util.html_escape(value)}\"): #{explanation}."
       end
     end