[jira] [Closed] (GEODE-5237) DiskAccessException can sometimes state that actual usage is less than critical

["nabarun (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GEODE-5237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

nabarun closed GEODE-5237.
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> DiskAccessException can sometimes state that actual usage is less than critical
> -------------------------------------------------------------------------------
>
>                 Key: GEODE-5237
>                 URL: https://issues.apache.org/jira/browse/GEODE-5237
>             Project: Geode
>          Issue Type: Bug
>          Components: persistence
>            Reporter: Lynn Gallinat
>            Assignee: Lynn Gallinat
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.7.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> It's possible that GEODE can throw a DiskAccessException stating that the current file system usage exceeds the critical threshold, but the exception's message states that the file system usage is UNDER the critical threshold, as follows. This appears to be only an error in what is logged and GEODE really is over critical.
> org.apache.geode.cache.DiskAccessException: For DiskStore: dmDiskStore_3604: Critical disk usage threshold exceeded for volume /var/vcap/data/scratch/serialParRegHABridgePersistParOffline-0516-200217/vm_2_bridge3_disk_1: the file system is 5% full, which exceeds the critical threshold of 5.203678%.
> The problem is that GEODE rounds the file system usage before logging it in the message in the method DiskUsage.update(float, float), and this can cause the problem when it gets rounded down:
>  double use = 100.0 * (total - remaining) / total;
>  recordStats(total, remaining, elapsed);
>  String pct = Math.round(use) + "%";  <=====



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