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https://issues.apache.org/jira/browse/CAMEL-6840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514571#comment-16514571
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ASF GitHub Bot commented on CAMEL-6840:
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WillemJiang commented on a change in pull request #2376: CAMEL-6840 - add
grouped throttling feature, XML DSL is not working p…
URL: https://github.com/apache/camel/pull/2376#discussion_r195887215
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File path: camel-core/src/main/java/org/apache/camel/processor/Throttler.java
##########
@@ -61,25 +70,32 @@
private static final String PROPERTY_EXCHANGE_QUEUED_TIMESTAMP =
"CamelThrottlerExchangeQueuedTimestamp";
private static final String PROPERTY_EXCHANGE_STATE =
"CamelThrottlerExchangeState";
+ // (throttling grouping) defaulted as 1 because there will be only one
queue which is similar to implementation
+ // when there is no grouping for throttling
+ private static final Integer NO_CORRELATION_QUEUE_ID = new Integer(1);
private enum State { SYNC, ASYNC, ASYNC_REJECTED }
private final Logger log = LoggerFactory.getLogger(Throttler.class);
private final CamelContext camelContext;
- private final DelayQueue<ThrottlePermit> delayQueue = new DelayQueue<>();
private final ExecutorService asyncExecutor;
private final boolean shutdownAsyncExecutor;
private volatile long timePeriodMillis;
- private volatile int throttleRate;
private String id;
private Expression maxRequestsPerPeriodExpression;
private boolean rejectExecution;
private boolean asyncDelayed;
private boolean callerRunsWhenRejected = true;
+ private Expression correlationExpression;
+ // below 2 fields added for (throttling grouping)
+ private Map<Integer, DelayQueue<ThrottlePermit>> delayQueueCache;
Review comment:
We may introduce memory leak issue, if we keep adding items to the map
without clean them.
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> Allow Throttler EIP to specify SLA per client/correlated-group
> --------------------------------------------------------------
>
> Key: CAMEL-6840
> URL: https://issues.apache.org/jira/browse/CAMEL-6840
> Project: Camel
> Issue Type: New Feature
> Components: camel-core, eip
> Reporter: Christian Posta
> Assignee: Önder Sezgin
> Priority: Major
> Fix For: 2.22.0
>
>
> Basic idea is to allow throttler to have a predicate to determine whether or
> not to apply throttling to that exchange.
> From this Mailing List discussion:
> http://camel.465427.n5.nabble.com/Throttling-by-client-ID-td5741032.html
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