Bug 1184285
| Summary: | Transaction from new topology rolled back (but succeeds on originator) | ||
|---|---|---|---|
| Product: | [JBoss] JBoss Data Grid 6 | Reporter: | Misha H. Ali <mhusnain> |
| Component: | Documentation | Assignee: | Misha H. Ali <mhusnain> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.4.0 | CC: | dberinde, dmehra, dstahl, jdg-bugs, jpallich, mgencur, rvansa, slaskawi, ttarrant |
| Target Milestone: | GA | ||
| Target Release: | 6.4.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1180680 | Environment: | |
| Last Closed: | 2015-01-27 23:43:54 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1180680 | ||
| Bug Blocks: | 1153111 | ||
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Comment 1
Misha H. Ali
2015-01-20 23:34:51 UTC
In Red Hat JBoss Data Grid, after network partition (split-brain) is resolved, nodes start reconnecting through a series of merge events. In some of these merges a node may be reported to temporarily leave the cluster; if such node is executing a transaction spanning other nodes, this transaction is not executed on the remote node. However, the transaction can be confirmed and succeeds on the originating node. The result is stale value on the node not committing this transaction. This inconsistency is not resolved until the entry is updated or removed; reads can return both stale and committed value. After the merge is finished on all nodes, this situation cannot happen any more. There is no workaround for this issue. I've added a question in the original bug to clarify whether we wanted this information in just docs (this is what I thought) or docs+RN, or just RN. I've added it to the docs here in a warning box: http://docbuilder.usersys.redhat.com/12532/#Detecting_and_Recovering_from_a_Split-Brain_Problem Setting this to martin. Does this satisfy the requirments for that bug, martin? Thanks, Martin. I'll keep this on ASSIGNED for now then to remind myself that this may still need work. Verified the latest version. |