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allow query of donor nodes if allwed by config

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This commit is contained in:
Erik 2023-10-17 18:10:55 +03:00
parent 1af88c3607
commit 6c72961d12
1 changed files with 7 additions and 4 deletions
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11
src/MariaDB.ts
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@ -24,7 +24,8 @@ export type MariaOptions = {
cluster?: PoolClusterConfig, cluster?: PoolClusterConfig,
client?: PoolConfig, client?: PoolConfig,
credentials: Credentials, credentials: Credentials,
loggerOptions?: LoggerClientOptions loggerOptions?: LoggerClientOptions,
donorQuery?: boolean
} }
type MariaError = { type MariaError = {
@ -93,8 +94,9 @@ class MariaDB
#cluster: boolean; #cluster: boolean;
#pool: PoolCluster | null; #pool: PoolCluster | null;
#nodes: Node[]; #nodes: Node[];
#canQueryDonor: boolean;
constructor (server: IServer, options: MariaOptions) constructor (server: IServer, options: MariaOptions)
{ {
if (!server) if (!server)
@ -124,6 +126,7 @@ class MariaDB
this.#afterLastQuery = null; this.#afterLastQuery = null;
this.#cluster = this.#credentials.length > 1; this.#cluster = this.#credentials.length > 1;
this.#canQueryDonor = options.donorQuery ?? false;
this.#logger = server.createLogger(this, options.loggerOptions); this.#logger = server.createLogger(this, options.loggerOptions);
} }
@ -338,7 +341,7 @@ class MariaDB
const pool = this.#pool; const pool = this.#pool;
if (nodeName) if (nodeName)
{ {
const available = this.#nodes.filter(n => n.status === 'synced' || !n.status); const available = this.#nodes.filter(n => n.status === 'synced' || !n.status || (this.#canQueryDonor && n.status === 'donor'));
if (!available.length) if (!available.length)
throw new Error('No nodes available for query'); throw new Error('No nodes available for query');
const node = this.#nodes.find(n => n.name === nodeName); const node = this.#nodes.find(n => n.name === nodeName);
@ -350,7 +353,7 @@ class MariaDB
this.#logger.warn(str); this.#logger.warn(str);
nodeName = '*'; nodeName = '*';
} }
else if (node.status && node.status !== 'synced') else if (node.status && node.status !== 'synced' && !(this.#canQueryDonor && node.status === 'donor'))
{ {
const str = `Node ${nodeName} is currently not synced with the pool and thus unqueryable`; const str = `Node ${nodeName} is currently not synced with the pool and thus unqueryable`;
if (throwError) if (throwError)