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fix: add efm2 to the default plugin chain list for MySQL #653

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Merged
karenc-bq merged 3 commits into from
May 28, 2026
+6 −7
Merged

fix: add efm2 to the default plugin chain list for MySQL #653

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1f64898
fix: add efm2 to the default plugin chain list for MySQL
karenc-bq May 28, 2026
4f74264
chore: update changelog
karenc-bq May 28, 2026
c6cd711
chore: update changelog
karenc-bq May 28, 2026
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5 changes: 4 additions & 1 deletion CHANGELOG.md
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Expand Up @@ -6,9 +6,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),

## [2.1.1] - 2026-05-28

### :magic_wand: Added

- Added Aurora Initial Connection Strategy Plugin as one of default plugins enabled. To learn more about the plugin, [see the documentation here.](https://github.com/aws/aws-advanced-nodejs-wrapper/blob/main/docs/using-the-nodejs-wrapper/using-plugins/UsingTheAuroraInitialConnectionStrategyPlugin.md)

### :bug: Fixed

- Use a MySQL-specific default plugin chain when the driver dialect is MySQL2, excluding the `efm2` plugin from the defaults.
- Prevent process crash during Aurora failover when using the PostgreSQL client, addresses [issue #620](https://github.com/aws/aws-advanced-nodejs-wrapper/issues/620) ([PR #621](https://github.com/aws/aws-advanced-nodejs-wrapper/pull/621)).

## [2.1.0] - 2026-01-15
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7 changes: 2 additions & 5 deletions common/lib/connection_plugin_chain_builder.ts
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Expand Up @@ -123,12 +123,9 @@ export class ConnectionPluginChainBuilder {
} else {
let pluginCodes: string = props.get(WrapperProperties.PLUGINS.name);
if (pluginCodes == null) {
pluginCodes =
pluginService.getDriverDialect().getDialectName() === "MySQL2DriverDialect"
? WrapperProperties.MYSQL2_DEFAULT_PLUGINS
: WrapperProperties.DEFAULT_PLUGINS;
pluginCodes = WrapperProperties.DEFAULT_PLUGINS;
}
usingDefault = pluginCodes === WrapperProperties.DEFAULT_PLUGINS || pluginCodes === WrapperProperties.MYSQL2_DEFAULT_PLUGINS;
usingDefault = pluginCodes === WrapperProperties.DEFAULT_PLUGINS;

pluginCodes = pluginCodes.trim();
if (pluginCodes !== "") {
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1 change: 0 additions & 1 deletion common/lib/wrapper_property.ts
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Expand Up @@ -47,7 +47,6 @@ export class WrapperProperty<T> {
export class WrapperProperties {
static readonly MONITORING_PROPERTY_PREFIX: string = "monitoring_";
static readonly DEFAULT_PLUGINS = "initialConnection,auroraConnectionTracker,failover2,efm2";
static readonly MYSQL2_DEFAULT_PLUGINS = "initialConnection,auroraConnectionTracker,failover2";
static readonly DEFAULT_TOKEN_EXPIRATION_SEC = 15 * 60;

static readonly PLUGINS = new WrapperProperty<string>(
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