poorbarcode commented on code in PR #24423:
URL: https://github.com/apache/pulsar/pull/24423#discussion_r2371536087
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pulsar-broker-common/src/main/java/org/apache/pulsar/broker/ServiceConfiguration.java:
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@@ -919,6 +919,47 @@ The max allowed delay for delayed delivery (in
milliseconds). If the broker rece
)
private int brokerMaxConnections = 0;
+ @FieldContext(
+ category = CATEGORY_POLICIES,
+ doc = "It relates to configuration \"WriteBufferHighWaterMark\" of
Netty Channel Config. If the number of bytes"
+ + " queued in the write buffer exceeds this value, channel
writable state will start to return \"false\"."
+ )
+ private int pulsarChannelWriteBufferHighWaterMark = 64 * 1024;
+
+ @FieldContext(
+ category = CATEGORY_POLICIES,
+ doc = "It relates to configuration \"WriteBufferLowWaterMark\" of
Netty Channel Config. If the number of bytes"
+ + " queued in the write buffer is smaller than this value,
channel writable state will start to return"
+ + " \"true\"."
+ )
+ private int pulsarChannelWriteBufferLowWaterMark = 32 * 1024;
+
+ @FieldContext(
+ category = CATEGORY_POLICIES,
+ doc = "If enabled, the channel will pause to deal with new request
once the writer buffer is full, until it"
+ + " is changed to writable."
+ )
+ private boolean pulsarChannelPauseReceivingRequestsIfUnwritable = false;
+
+ @FieldContext(
+ category = CATEGORY_POLICIES,
+ doc = "After the connection is recovered from an unreadable state, the
channel will be rate-limited for a"
+ + " period of time to avoid overwhelming due to the backlog of
requests. This parameter defines how"
+ + " many requests should be allowed in the rate limiting
period."
+
+ )
+ private int pulsarChannelRateLimitingRequestsAfterResumeFromUnreadable =
1000;
+
+ @FieldContext(
+ category = CATEGORY_POLICIES,
+ doc = "After the connection is recovered from an unreadable state, the
channel will be rate-limited for a"
+ + " period of time to avoid overwhelming due to the backlog of
requests. This parameter defines how"
+ + " long the rate limiting should last, in seconds. Once the bytes
that are waiting to be sent out"
+ + " reach the \"pulsarChannelWriteBufferHighWaterMark\"， the timer
will be reset. Setting a negative"
+ + " value will disable the rate limiting."
+ )
+ private int pulsarChannelRateLimitingSecondsAfterResumeFromUnreadable = 5;
Review Comment:
- `pulsarChannelRateLimitingSecondsAfterResumeFromUnreadable` means how long
the rate limiter will work for
- Added a new parameter to define the period:
`pulsarChannelRateLimitingRequestsPeriodAfterResumeFromUnreadable`
---
Renamed the `3` configurations
- `pulsarChannelRateLimitingSecondsAfterResumeFromUnreadable` ->
`pulsarChannelUnReadableCooldownSeconds`
- `pulsarChannelRateLimitingRequestsAfterResumeFromUnreadable` ->
`pulsarChannelUnReadableCooldownLimitRate`
- `pulsarChannelRateLimitingRequestsPeriodAfterResumeFromUnreadable` ->
`pulsarChannelUnReadableCooldownRateLimitPeriod`
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