[XQZone General] Anyone used locks ? Strangeness....

[Andy Townsend]

Hi Folks,

Anyone tried using locks in Mark Logic?

I tried a few various things and now see to have a lock that
isn't....  When I try to acquire a lock on a document I get
XDMP-LOCKCONFLICT, so I list the locks on the document and there it appears
to be, so I try to release it and I get told it's not locked -
XDMP-NOTLOCKED.  Sample code and output is below.

Also, the timeout does not appear to bedoing anything - created the
original lock with a 60 second timeout and it's still there much later.

Anybody any ideas whats happening?

Thanks

Andy

Platform : Solaris
Version : Mark Logic 3.0-2


Code::

try {
xdmp:lock-acquire("/eot/eot178.xml","exclusive","0","me",xs:unsignedLong(5))
}
catch ($ex)
{
<p>
<qq>EXCEPTION</qq>
<qq>{$ex}</qq>
<qq>{xdmp:document-locks("/eot/eot178.xml")//lock:lock}</qq>
<qq>{try {xdmp:lock-release("/eot/eot178.xml") }  catch ($ey) {$ey} }</qq>
</p>
}

Output::

<p>
  <qq>EXCEPTION</qq>
  <qq>
    <err:error xsi:schemaLocation="http://marklogic.com/xdmp/error
error.xsd">
      <err:code>XDMP-LOCKCONFLICT</err:code>
      <err:message>A conflicting lock exists on this document</err:message>
      <err:format-string>XDMP-LOCKCONFLICT:
xdmp:lock-acquire("/eot/eot178.xml", "exclusive", "0", "me",
xs:unsignedLong("5"))
        -- A conflicting lock exists on this document
      </err:format-string>
      <err:retryable>false</err:retryable>
      <err:expr>xdmp:lock-acquire("/eot/eot178.xml", "exclusive", "0",
"me", xs:unsignedLong("5"))</err:expr>
      <err:data/>
      <err:stack>
        <err:frame>
          <err:line>4</err:line>
        </err:frame>
      </err:stack>
    </err:error>
  </qq>
  <qq>
    <lock:lock>
      <lock:lock-type>write</lock:lock-type>
      <lock:lock-scope>exclusive</lock:lock-scope>
      <lock:active-locks>
        <lock:active-lock>
          <lock:depth>0</lock:depth>
          <lock:owner>me</lock:owner>
          <lock:timeout>60</lock:timeout>

<lock:lock-token>http://marklogic.com/xdmp/locks/3a9ba069f6ee2b2c</lock:lock-token>

          <lock:timestamp>1132420603</lock:timestamp>
          <sec:user-id>13421101198227715383</sec:user-id>
        </lock:active-lock>
      </lock:active-locks>
    </lock:lock>
  </qq>
  <qq>
    <err:error xsi:schemaLocation="http://marklogic.com/xdmp/error
error.xsd">
      <err:code>XDMP-NOTLOCKED</err:code>
      <err:message>Document not locked</err:message>
      <err:format-string>
        XDMP-NOTLOCKED: xdmp:lock-release("/eot/eot178.xml") -- Document
not locked
      </err:format-string>
      <err:retryable>false</err:retryable>
      <err:expr>xdmp:lock-release("/eot/eot178.xml")</err:expr>
      <err:data/>
      <err:stack>
        <err:frame>
          <err:line>12</err:line>
          <err:variables>
            <err:variable>
              <err:name>ex</err:name>
              <err:value>/err:error</err:value>
            </err:variable>
          </err:variables>
        </err:frame>
      </err:stack>
    </err:error>
  </qq>
</p>

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