SPARK-41415/SPARK-42090 Backport to 3.2 #39632
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Add the ability to retry SASL requests. Will add it as a metric too soon to track SASL retries. We are seeing increased SASL timeouts internally, and this issue would mitigate the issue. We already have this feature enabled for our 2.3 jobs, and we have seen failures significantly decrease. No Added unit tests, and tested on cluster to ensure the retries are being triggered correctly. Closes apache#38959 from akpatnam25/SPARK-41415. Authored-by: Aravind Patnam <[email protected]> Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
### What changes were proposed in this pull request? This PR introduces sasl retry count in RetryingBlockTransferor. ### Why are the changes needed? Previously a boolean variable, saslTimeoutSeen, was used. However, the boolean variable wouldn't cover the following scenario: 1. SaslTimeoutException 2. IOException 3. SaslTimeoutException 4. IOException Even though IOException at apache#2 is retried (resulting in increment of retryCount), the retryCount would be cleared at step apache#4. Since the intention of saslTimeoutSeen is to undo the increment due to retrying SaslTimeoutException, we should keep a counter for SaslTimeoutException retries and subtract the value of this counter from retryCount. ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? New test is added, courtesy of Mridul. Closes apache#39611 from tedyu/sasl-cnt. Authored-by: Ted Yu <[email protected]> Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com>
akpatnam25
changed the title
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@mridulm @dongjoon-hyun @tedyu backport into 3.2 |
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++ CC @otterc |
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@dongjoon-hyun oops tagged the wrong person :) |
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What changes were proposed in this pull request?
Add the ability to retry SASL requests. Will add it as a metric too soon to track SASL retries.
Why are the changes needed?
We are seeing increased SASL timeouts internally, and this issue would mitigate the issue. We already have this feature enabled for our 2.3 jobs, and we have seen failures significantly decrease.
Does this PR introduce any user-facing change?
No
How was this patch tested?
Added unit tests, and tested on cluster to ensure the retries are being triggered correctly.
Closes #38959 from akpatnam25/SPARK-41415.
Authored-by: Aravind Patnam [email protected]
Signed-off-by: Mridul Muralidharan <mridulgmail.com>
What changes were proposed in this pull request?
This PR introduces sasl retry count in RetryingBlockTransferor.
Why are the changes needed?
Previously a boolean variable, saslTimeoutSeen, was used. However, the boolean variable wouldn't cover the following scenario:
Even though IOException at #2 is retried (resulting in increment of retryCount), the retryCount would be cleared at step #4.
Since the intention of saslTimeoutSeen is to undo the increment due to retrying SaslTimeoutException, we should keep a counter for SaslTimeoutException retries and subtract the value of this counter from retryCount.
Does this PR introduce any user-facing change?
No
How was this patch tested?
New test is added, courtesy of Mridul.
Closes #39611 from tedyu/sasl-cnt.
Authored-by: Ted Yu [email protected]
Signed-off-by: Mridul Muralidharan <mridulgmail.com>