Sunday Jun 24, 2007

Side effect of bug 6310880 - replication loop (halt) with err=67


DS bug #6310880 has been fixed both in the DS5.2patch5 official release and in several Sun Support hotfixes built on top of 5.2patch4. Or, the fix only provides protection against newly created entries, it does not protect the entries which were already existing inside the DS database before the bug fix was put in place. This can lead to undesired results, among which potential err=67 replication halt events. This entry provides a detailed analysis on why this happens and how to safely protect from such potential undesired effects.

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Thursday Jun 07, 2007

replck or how to fix a replication halt without re-initalization

The replck utility allows to check the health of a replication link and act on it in case it is required to fix a Sun DS replication halt/breakage. replck supports any replication link between any combination of DS5.x and DS6.x servers. replck can be run in two modes: "diagnose" mode (checks replication, identifying halts for the inspected link, but does not execute any repair action) and "repair" mode (checks replication and repairs any identified replication halt for the inspected link). Important to note is that the repair mode of replck may completely avoid costly topology re-initializations which are typically associated with long service outages.

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