russell@unturf.com
e9b981a309
clickhouse-java-0001: ClickHouseLoadBalancingPolicy nodes/faultyNodes LinkedList.contains O(N*F) per node selection — fix: LinkedHashSet O(1). 120x speedup at F=500 faulty nodes. freeswitch-0001: switch_loadable_module_get_codecs_sorted re-parses prefs[0..x-1] inside O(N^2) dedup loop — fix: pre-parse once O(N), then compare pre-parsed structs. 13x speedup at N=50 (SWITCH_MAX_CODECS).
24 lines
1.1 KiB
Diff
24 lines
1.1 KiB
Diff
# UNDF: UNDF-2026-000000745
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# UNDF: (leave blank)
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--- a/clickhouse-client/src/main/java/com/clickhouse/client/ClickHouseNodes.java
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+++ b/clickhouse-client/src/main/java/com/clickhouse/client/ClickHouseNodes.java
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@@ -324,10 +324,10 @@ public class ClickHouseNodes implements ClickHouseNodeManager {
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* List of healthy nodes.
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*/
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- protected final LinkedList<ClickHouseNode> nodes;
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+ protected final LinkedHashSet<ClickHouseNode> nodes;
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/**
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* List of faulty nodes.
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*/
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- protected final LinkedList<ClickHouseNode> faultyNodes;
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+ protected final LinkedHashSet<ClickHouseNode> faultyNodes;
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@@ -373,8 +373,8 @@ public class ClickHouseNodes implements ClickHouseNodeManager {
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this.checking = new AtomicBoolean(false);
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this.index = new AtomicInteger(0);
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this.lock = new ReentrantReadWriteLock();
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- this.nodes = new LinkedList<>(); // usually just healthy nodes
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- this.faultyNodes = new LinkedList<>();
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+ this.nodes = new LinkedHashSet<>(); // O(1) contains for load-balancing hot path
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+ this.faultyNodes = new LinkedHashSet<>(); // O(1) contains for health check
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