From 6a5700b3e8f0efcada2ab8501fca7d2cfd8bb777 Mon Sep 17 00:00:00 2001
From: Paul Chandler <paul.chandler@ericsson.com>
Date: Mon, 16 Sep 2024 11:18:12 +0100
Subject: [PATCH] Cassandra based distributed locking mechanism # 741

- Cassandra tables called lock and lock_priority,
 to manage task execution and synchronization across
 multiple nodes.
---
 .gitignore                                    | 22 -------------------
 CHANGES.md                                    |  1 -
 .../AgentNativeConnectionProvider.java        |  1 +
 application/src/main/resources/ecc.yml        |  7 +++---
 4 files changed, 4 insertions(+), 27 deletions(-)
 delete mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index 94278c9f..00000000
--- a/.gitignore
+++ /dev/null
@@ -1,22 +0,0 @@
-target/
-META-INF/
-OSGI-INF/
-build.properties
-pom.xml.versionsBackup
-dependency-reduced-pom.xml
-*~
-*.bak
-.checkstyle
-.classpath
-.project
-.settings/
-.toDelete
-*.pyc
-.idea/
-*.iml
-.coverage
-*htmlcov
-application/statistics/
-statistics/
-.vscode/
-
diff --git a/CHANGES.md b/CHANGES.md
index 566b8232..215a0b2b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -6,7 +6,6 @@
 * Create New Repair Type Called "VNODE" - Issue #755
 * Create ReplicaRepairGroup Class for Grouping Replicas and Token Ranges - Issue #721
 * Hot Reload of Nodes List - Issue #699
-* Update nodes when cluster changes, nodes removed or added  #699
 * Investigate Creation of RepairScheduler and ScheduleManager #714
 * Implement ScheduledJobQueue for Prioritized Job Management and Execution - Issue #740
 * Implement RepairGroup Class for Managing and Executing Repair Tasks - Issue #738
diff --git a/application/src/main/java/com/ericsson/bss/cassandra/ecchronos/application/providers/AgentNativeConnectionProvider.java b/application/src/main/java/com/ericsson/bss/cassandra/ecchronos/application/providers/AgentNativeConnectionProvider.java
index 452a5661..8b471f16 100644
--- a/application/src/main/java/com/ericsson/bss/cassandra/ecchronos/application/providers/AgentNativeConnectionProvider.java
+++ b/application/src/main/java/com/ericsson/bss/cassandra/ecchronos/application/providers/AgentNativeConnectionProvider.java
@@ -94,6 +94,7 @@ public AgentNativeConnectionProvider(
                         .withSslEngineFactory(sslEngineFactory)
                         .withSchemaChangeListener(defaultRepairConfigurationProvider)
                         .withNodeStateListener(defaultRepairConfigurationProvider);
+
         LOG.info("Preparing Agent Connection Config");
         nativeConnectionBuilder = resolveAgentProviderBuilder(nativeConnectionBuilder, agentConnectionConfig);
         LOG.info("Establishing Connection With Nodes");
diff --git a/application/src/main/resources/ecc.yml b/application/src/main/resources/ecc.yml
index ed88f3cb..03d83718 100644
--- a/application/src/main/resources/ecc.yml
+++ b/application/src/main/resources/ecc.yml
@@ -293,12 +293,11 @@ rest_server:
       cache_expiry_time_in_seconds: 30
       ##
       ## Allow to override consistency level for LWT (lightweight transactions). Possible values are:
-      ## "DEFAULT" - Use consistency level based on remoteRouting.
       ## "SERIAL" - Use SERIAL consistency for LWT regardless of remoteRouting.
       ## "LOCAL" - Use LOCAL_SERIAL consistency for LWT regardless of remoteRouting.
       ##
-      ## if you use remoteRouting: false and LOCAL then all locks will be taken locally
-      ## in DC. I.e There's a risk that multiple nodes in different datacenters will be able to lock the
+      ## if you use LOCAL then all locks will be taken locally in DC.
+      ##  I.e There's a risk that multiple nodes in different datacenters will be able to lock the
       ## same nodes causing multiple repairs on the same range/node at the same time.
       ##
-      consistencySerial: "DEFAULT"
+      consistencySerial: "SERIAL"