[MarkLogic Dev General] Regarding XDMP-PREVENTDEADLOCKS

[Mani, Sivasubramani (ELS)]

Hi team,

I got the XDMP-PREVENTDEADLOCKS error while I try to call a marklogic function 
inside the Html hreaf onClick event. Kindly  guide me how to achieve this.

Code:

<dt>Delete</dt>,
                      <dd>{
                            let $userId := auth:get-current-user-id()
                            let $batchId := xs:string(data($batch/@id))
                            let $batchDocUri := 
batlib:get-batch-xml-uri($userId, $batchId)
                            let $batchDirUri := concat("/repo/user/", $userId,
                            $const:PATH-SEP, $batcon:BATCHES, $const:PATH-SEP, 
$batchId, $const:PATH-SEP)

                            return <a href="{$const:BATCH-LIST-URL}" onClick="{
                            xdmp:spawn-function(function() {
                            let $deletebBatchDir := try {
                                   xdmp:directory-delete($batchDirUri)
                                    } catch($e){
                                                    ""
                                                }
                            return (if(doc-available($batchDocUri)) then
                            xdmp:document-delete($batchDocUri)
                            else(),xdmp:commit())
                            },<options xmlns="xdmp:eval">
  <transaction-mode>update</transaction-mode>
</options>)

Error Message:

<error:code>XDMP-PREVENTDEADLOCKS</error:code>
  <error:name/>
  <error:xquery-version>1.0-ml</error:xquery-version>
  <error:message>Processing an update from an update with different-transaction 
isolation could deadlock</error:message>
  <error:format-string>XDMP-PREVENTDEADLOCKS: 
xdmp:invoke("/application/views/batch/available-batches.xqy", (fn:QName("", 
"view-data"), map:map(&lt;map:map xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xmlns:map="http://marklogic.com/xdmp/map"&gt;&lt;map:entry 
key="batchType"&gt;&lt;map:value 
xsi:type="xs:string"&gt;norma...&lt;/map:map&gt;), fn:QName("", "form-data"), 
...), &lt;options 
xmlns="xdmp:eval"&gt;&lt;isolation&gt;different-transaction&lt;/isolation&gt;&lt;prevent-deadlocks&gt;t...&lt;/options&gt;)
 -- Processing an update from an update with different-transaction isolation 
could deadlock</error:format-string>
  <error:retryable>false</error:retryable>


Thanks & Regards,
Siva


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