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Significant issue found, fix in 1.4.12, workaround included

Hi all;

We have found a problem with LedgerSMB 1.4 which can cause brief service unavailability.  In theory it could be used to deny service to the application if abused by otherwise trusted users, but this is somewhat unlikely.  More likely is accidental misconfiguration.

LedgerSMB 1.4 allows account headings to be arranged in a tree.  If a header is its own parent, grandparent, etc, this can cause some reports to infinitely run until resources are exhausted in which the system recovers (usually after disk space is exhausted and then restored).  Known impacted reports include the PNL and Balance Sheet.

If you run into this problem it is simple to fix simply by resetting the heading parents.  If you have difficulty with this, please feel free to enquire on the -devel list or seek professional assistance (but the problem does not take significant time to resolve).

The problem cannot happen on 1.4.12 (currently in release candidate version) and later.

Best Wishes,
Chris Travers

Efficito:  Hosted Accounting and ERP.  Robust and Flexible.  No vendor lock-in.
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