ZOOKEEPER-3594: Don't propose error transactions #2070
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kezhuw
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Sep 27, 2023
| case Leader.SKIP: | ||
| // It is sad that we have no breadcrumbs to route packet back to origin. Basically, we have choices: | ||
| // 1. Attach breadcrumbs to outstanding request. | ||
| // This request protocol changes and protocol version bumping. |
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I think we could also cover #2069 if we want to go this way. I prefer this actually. We will inevitably introduce protocol changes in long term future. If so, why now ? But it still could be a separate issue before 3.10.0.
| @BeforeEach | ||
| @Override | ||
| public void setUp() throws Exception { | ||
| // TODO: setup an follower as observer master. |
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I am working on this. I could be a bit late due to my personal schedule.
As discussions in ZOOKEEPER-3418 and ZOOKEEPER-3594, there is no reason for us to propose error transactions. It is a waste of both network traffic/latency and disk storage. This pr introduces a new quorum packet type `SKIP`. Leader uses it to signal request owner to abort pending request. Since `SKIP` is a new packet type, so `skipErrorTxn` must not be turned on during rolling upgrade. JIRA: ZOOKEEPER-3594
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As discussions in ZOOKEEPER-3418 and ZOOKEEPER-3594, there is no reason for us to propose error transactions. It is a waste of both network traffic/latency and disk storage.
This pr introduces a new quorum packet type
SKIP. Leader uses it to signal request owner to abort pending request.Since
SKIPis a new packet type, soskipErrorTxnmust not be turned on during rolling upgrade.JIRA: ZOOKEEPER-3594(#1172)