Hari Shreedharan created FLUME-2233:
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Summary: MemoryChannel lock contention on every put due to
bytesRemaining Semaphore
Key: FLUME-2233
URL: https://issues.apache.org/jira/browse/FLUME-2233
Project: Flume
Issue Type: Bug
Reporter: Hari Shreedharan
Assignee: Hari Shreedharan
This semaphore is checked every time there is a put (unlike the queueRemaining
semaphore which is checked only on transaction commits), causing the channel to
slow down, even when the user does not care about memory usage.
We must add a new parameter to make sure that we look at bytesRemaining only
when required which the user can disable if memory is not something they worry
about because they know the channel size will be sufficiently small. By
default, we will need to still check bytesRemaining to avoid breaking existing
configurations.
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