FDWOL (JANUS DEFINE parameter): Difference between revisions
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<span class="pageSubtitle">Do Find Without Locks on SDS ports</span> | <span class="pageSubtitle">Do Find Without Locks on SDS ports</span> | ||
<var>FDWOL</var> is a parameter on [[JANUS DEFINE]], which defines and sets characteristics of a Janus port. | <var>FDWOL</var> is a parameter on <var>[[JANUS DEFINE]]</var>, which defines and sets characteristics of a Janus port. | ||
This parameter specifies that all | This parameter specifies that all <var>FIND</var> statements done by the <var class="product">[[Media:JsdsrNew.pdf|Janus Specialty Data Store]]</var> are to be done as <var>FIND WITHOUT LOCKS</var>. This can minimize the impact of <var class="product">Janus Specialty Data Store</var> applications on 3270 applications and reduce record locking conflicts caused by large <var class="product">Janus Specialty Data Store</var> request. On the other hand, <var>FDWOL</var> could cause severe <var class="product">Model 204</var> errors especially in reuse record number files. The default for <var>[[JANUS DEFINE#type|SDS]]</var> ports is no <var>FDWOL</var>. | ||
Valid only for <var>SDS</var> (also known as <var>[[JANUS DEFINE#type|OMNI]]</var> and <var>OAS</var>) ports. | Valid only for <var>SDS</var> (also known as <var>[[JANUS DEFINE#type|OMNI]]</var> and <var>OAS</var>) ports. | ||
Latest revision as of 15:38, 23 April 2015
Do Find Without Locks on SDS ports
FDWOL is a parameter on JANUS DEFINE, which defines and sets characteristics of a Janus port.
This parameter specifies that all FIND statements done by the Janus Specialty Data Store are to be done as FIND WITHOUT LOCKS. This can minimize the impact of Janus Specialty Data Store applications on 3270 applications and reduce record locking conflicts caused by large Janus Specialty Data Store request. On the other hand, FDWOL could cause severe Model 204 errors especially in reuse record number files. The default for SDS ports is no FDWOL.
Valid only for SDS (also known as OMNI and OAS) ports.