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<p class="MsoNormal">Hallo,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve been working to upgrade very old Bugzilla installation, and have a peculiar problem relevant only for graph reporting.
<o:p></o:p></p>
<p class="MsoNormal">I find it difficult to troubleshoot when there are no clear logs and errors, so I hope someone may experience same and have a feedback.
<o:p></o:p></p>
<p class="MsoNormal">The origin installation is on RedHat (or its clone) 5, with Bugzilla 4.0 and MySQL 5.0.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Step 1. <o:p></o:p></p>
<p class="MsoNormal">From original, MySQL import data to new instance RHEL 6, Bugzilla 4.0 and MySQL5.5. Look good.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Step 2. <o:p></o:p></p>
<p class="MsoNormal">Bugzilla Git upgrade from 4.0 to 4.2. No change with RHEL6 and MySQL 5.5. Looks good.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Step 3-1. <o:p></o:p></p>
<p class="MsoNormal">Bugzilla Git upgrade from 4.2 to 4.4. No change with RHEL6 and MySQL 5.5.
<o:p></o:p></p>
<p class="MsoNormal">Reporting graph (bar and line) problem appear here. Instead of graph, the page only reads “Graphical report results”.
<o:p></o:p></p>
<p class="MsoNormal">The reports like table and CSV works as expected. Sanity check doesn’t read any problems.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Step 3-2.<o:p></o:p></p>
<p class="MsoNormal">Alternatively, from instance in step 2 (RHEL 6 with Bugzilla 4.2), the MySQL 5.5 data was imported to RHEL 7, with Bugzilla 4.2 (with MySQL 5.5).
<o:p></o:p></p>
<p class="MsoNormal">And same reporting problem appear on new RHEL 7 instance. <o:p>
</o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Step 4. From here, with some intermediate steps, I can upgrade to latest supported versions, RHEL7, Bugzilla 5.0.6 and MySQL 5.7.
<o:p></o:p></p>
<p class="MsoNormal">But reporting graph (bar, line) problem is always present. After every upgrade step, the sanity check doesn’t report any issues.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Zarko<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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