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24 <h1 id="banner-header"><a href="http://defaria.com/blogs/Status/" accesskey="1">Status for Andrew DeFaria</a></h1>
25 <h2 id="banner-description">Searchable status reports and work log</h2>
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43 <h2 class="date-header">June 27, 2006</h2>
45 <div class="entry" id="entry-557">
46 <h3 class="entry-header">Salira Vob Corruption</h3>
47 <div class="entry-content">
48 <div class="entry-body">
50 <li>Cleaned up Multisite Packets</li>
52 <li>Cleaned up sons-sc-cc:/Windows/temp and sons-clearcase salira vob cleartext pools due to disk space crunch</li>
54 <li>Ran dbcheck on salira vob to fix corruption</li>
56 <li>Tested changing mastership of a test branch</li>
59 <p><b>Time spend:</b> 7 hours</p>
61 <h3>Cleaning up Multisite Packets</h3>
63 <p>First order of business was to attempt to clean up multisite packets that reside in the shipping bays for both sons-clearcase and sons-sc-cc as much as possible. As per my prior work there seems to be huge sync packets to sync, which takes time. I wanted to attempt a chmaster on an older branch to see how that changes from sons-clearcase -> sons-sc.cc. Part of the chmaster involves informing the other replica of the change. This happens through the normal multisite syncreplica. If the bays are full of huge packets then I need to process them first. One problem I hit was running out of space on sons-sc-cc. Normally this is not a problem as there is enough space on the C drive where the vobs reside. But with these huge packets going back and forth I was running out of space. Cleaned up some space and attempt to import all packets on sons-sc-cc. I also attempted to scrub the cleartext pool on sons-clearcase, which has grown to 4 gig! The cleartext pool is a caching mechanism thus since Clearcase can reconstruct the cleartext pool at any time (cleartext is mutable) I figured I could save 4 gig.</p>
65 <h3>Testing chmaster</h3>
67 <p>Tested out that I cannot check out, and back in, and element on the rel_1.0 branch from a view on sons-sc-cc. I then attempted to transfer mastership of the rel_1.0 branch -> sons-sc-cc but received the following error:<br>
70 <b>[ccadmin] sons-clearcase:</b><u>ct chmaster SantaClara brtype:rel_1.0@\\salira</u>
71 cleartool: Error: Branch type "rel_1.0" has branches (with default mastership) that have outstanding checkouts.
74 <p>Actually there are still checkout on the rel_1.0 branch in, for example, the view YXiu_view_desktop (e.g. salira/neopon/build/makefile).</p>
76 <h3>Ran dbcheck on salira vob to fix corruption</h3>
78 <p><b>10:40 Pm:</b> Decided to give up on the testing of chmaster and get the vob fixed. Locked salira vob. Started copy of db</p>
80 <p><b>:10:43 Pm:</b> Dtarted keybuild procedure. Keybuild failed with:</p>
84 Key File Build Utility
85 Copyright (C) 1985-1990 Raima Corporation, All Rights Reserved
87 initializing key file: vob_db.k01
88 initializing key file: vob_db.k02
89 initializing key file: vob_db.k03
90 initializing key file: vob_db.k04
91 processing data file: vob_db.d01, total records = 3555277
110 <p>keybuild failed with an exit code of 58. Ran keybuild again... This seems to be going better... Did d01 file. Proceeded to work on the d02 file then (11:07 Pm):</p>
112 <div class=code><pre>
114 *** db_VISTA database error -901 - system error
117 863474processing data file vob_db.d02, total records = 1
121 key file rebuild completed
124 <p>Hmmm... Doesn't seem like the key file rebuild was really completed. I wonder... Should I try again? Trying again...</p>
126 <p>Third times a charm they say! keybuild ran to completion but for a while it was touch and go as sons-clearcase was not responding. Now, however, I can import the packets that were stuck... Well most of them:</p>
128 <div class=code><pre>
129 Applied sync. packet sync_SantaClara_26-Jun-06.02.00.01_5308 to VOB \\sons-clearcase\VOBs\salira.vbs
130 Multitool.exe: Error: Database identifier (dbid) not found in database: "\salira".
131 Multitool.exe: Error: Could not get oplog entry with order:2886884 from replica:
132 China with oplog_id:376595: reference to non-existent ClearCase object.
133 Multitool.exe: Error: Could not check oplog entry for divergence: reference to non-existent ClearCase object.
134 Multitool.exe: Error: Cannot apply sync. packet sync_China_26-Jun-06.16.32.42_3292_1 to VOB replica \\sons-clearcase\VOBs\salira.vbs: reference to non-existent ClearCase object
137 <p>Damn. Ran syncreplica -import again and everything got processed. I'm glad it's processed but I can't help but wonder why I hit these errors...</p>
141 <p class="entry-footer">
142 <span class="post-footers">Posted by at 11:18 AM</span> <span class="separator">|</span> <a class="permalink" href="http://defaria.com/blogs/Status/archives/000557.html">Permalink</a>
152 <h2 class="date-header">June 26, 2006</h2>
154 <div class="entry" id="entry-556">
155 <h3 class="entry-header">dbcheck</h3>
156 <div class="entry-content">
157 <div class="entry-body">
159 <li>Ran dbcheck on salira vob</li>
162 <p><b>Time spent:</b> 2 hours</p>
164 Frank W O'Keefe wrote:<br>
165 <blockquote type="cite">
168 <p>For the error: 06/23/06 07:48:04 db_server(10104): Error: db_server.exe(10104): Error: Database identifier 427883 not foundin "../db__obj.c" line 731.</p>
170 <p>This could possibly mean there is an issue with the VOBs database. Unfortunately I cannot determine which VOB this is for? I would need you to run a "dbcheck" on the VOB that is reporting this error. Unfortunately I was seeing this error many times in the logs so I cannot tell for which VOB it is reporting this on.</p>
172 <p>(10104) in the error is the process id that is/was running. This may help in finding the VOB. </p>
175 <p>I'm pretty sure I know the vob in question - their main vob (\salira).</p>
177 <blockquote type="cite">
178 <p>The following URL is to the instructions on running dbcheck. <a href="http://www-1.ibm.com/support/docview.wss?uid=swg21122748">http://www-1.ibm.com/support/docview.wss?uid=swg21122748</a></p>
181 <p>I tried following that by using the method of lock vob, copy the vob database files, unlock vob, dbcheck the copy. Everytime I got a -4 error so I went back to do lock vob, dbcheck, unlock vob.</p>
183 <p>I was surprised to see some stuff come out on stderr:</p>
185 <div class=code><pre>
186 <b><font color=blue>[ccadmin] sons-clearcase:</font></b><u>/apps/Rational/ClearCase/etc/utils/dbcheck -r1 -a -k -p8192 vob_db > C:\\cygwin\\tmp\\dbcheck.txt</u>
188 Processing delete chain: 75 nodes on delete chain.
193 <p>Eventually it finished stating:</p>
195 <div class=code><pre>
196 Database consistency check completed
198 169 errors were encountered in 167 records/nodes
201 <blockquote type="cite">
202 <p>Also, I am going to send you a URL to a technote about this PC's heap size. I see messages indicating that you may need to adjust the heap settings for this host.</p>
204 <a href="http://www-1.ibm.com/support/docview.wss?uid=swg21142584">http://www-1.ibm.com/support/docview.wss?uid=swg21142584</a></p>
206 <p>Depending on the dbcheck output, we may need to get a copy of the VOB's db directory but I rather hold off on that request until we see what the dbcheck reports.<p>
208 <p>I"ve attached the dbcheck output.</p>
210 <p class="entry-footer">
211 <span class="post-footers">Posted by at 10:17 AM</span> <span class="separator">|</span> <a class="permalink" href="http://defaria.com/blogs/Status/archives/000556.html">Permalink</a>