Allow Addresses to have a max calls per connection #8386
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This adds the ability for the Address Policy to also contain a maximum number of connections per Stream. In some environments it seems that OkHttp's HTTP/2 gets worse the more streams that are packed onto a single connection. By adding in the ability for users to alter their client's AddressPolicy to set a maximum number of connections per stream, they can control how much (if any) packing they want OkHttp to perform.
yschimke
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Apr 24, 2024
okhttp/src/main/kotlin/okhttp3/internal/connection/RealConnection.kt
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yschimke
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Apr 24, 2024
| @@ -368,6 +384,18 @@ class RealConnection( | |||
| } | |||
| } | |||
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| private fun getMaximumAllocationLimit(): Int { | |||
| // if we have not negotiated a max per streams yet, don't check for the policy override | |||
| val negotiatedMaxCurrentStreams = lastMaxConcurrentStreamsFromSettings ?: return 1 | |||
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Isn't this just defaulted to 1 for Http/1 and Http2Connection.DEFAULT_SETTINGS.getMaxConcurrentStreams() for Http/2?
should it be a lateinit and start sets to one or the other?
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maybe?
private var lastMaxConcurrentStreamsFromSettings = 1 would avoid the early return, but then we're checking against the policy.
Would it be better to have the null and early return or check the policy every time, even if we're not in HTTP/2 land?
ean5533
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Apr 24, 2024
peckb1
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peckb1
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Apr 24, 2024
| @@ -26,7 +26,7 @@ import java.util.concurrent.TimeUnit.MILLISECONDS | |||
| import java.util.concurrent.locks.ReentrantLock | |||
| import javax.net.ssl.SSLPeerUnverifiedException | |||
| import javax.net.ssl.SSLSocket | |||
| import kotlin.concurrent.withLock | |||
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no longer need when the references from lock.withLock were changed to this.withLock
- though that extension function still forwards to
lock.withLockso same concurrent method used one step further.
peckb1
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Overview
This adds the ability for the Address Policy to also contain a maximum number of connections per Stream.
Additionally creates a ConnectionPoolPolicy which can have default options set up for all connections in the pool.
Context
In some environments it seems that OkHttp's HTTP/2 gets worse the more streams that are packed onto a single connection.
By adding in the ability for users to alter their client's AddressPolicy to set a maximum number of connections per stream, they can control how much (if any) packing they want OkHttp to perform.