שיחות על Storage – אזהרה ל DBA: המאמר לפניך הולך להכיל מושגי אחסון
לפני זמן מה החלו אצלנו תלונות מצד המפתחים על אטיות משמעותית בביצועים של אחת הסביבות החדשות שהקמנו.
המפתחים שבדקו את הסביבה ראו את קצה הקרחון. להלן מוצג הפתרון שלי לבעיה.
הרעיון הכללי לקבל בעיה ולהתחיל לפרק אותה לחלקים – שיטת הסלאמי(סלנג עממי).
החלקים: האפליקציה. שכבת ביניים – קשר בין האפליקציה לבין הנתונים DAL. שכבת מסד הנתונים. שכבת האחסון. הבעיה:
תלונות של המפתחים על איטיות האפליקציה. השלבים לפתרון:
כאשר לקחנו את הקוד הSQL שהורץ (בשלילת פרמטרים כללים – Set Option) וה
{"items":["5fda1ee11ec0bf0017643a75"],"styles":{"galleryType":"Columns","groupSize":1,"showArrows":true,"cubeImages":true,"cubeType":"fill","cubeRatio":1.3333333333333333,"isVertical":true,"gallerySize":30,"collageAmount":0,"collageDensity":0,"groupTypes":"1","oneRow":false,"imageMargin":32,"galleryMargin":0,"scatter":0,"rotatingScatter":"","chooseBestGroup":true,"smartCrop":false,"hasThumbnails":false,"enableScroll":true,"isGrid":true,"isSlider":false,"isColumns":false,"isSlideshow":false,"cropOnlyFill":false,"fixedColumns":1,"enableInfiniteScroll":true,"isRTL":false,"minItemSize":50,"rotatingGroupTypes":"","rotatingCropRatios":"","columnWidths":"","gallerySliderImageRatio":1.7777777777777777,"numberOfImagesPerRow":1,"numberOfImagesPerCol":1,"groupsPerStrip":0,"borderRadius":0,"boxShadow":0,"gridStyle":1,"mobilePanorama":false,"placeGroupsLtr":true,"viewMode":"preview","thumbnailSpacings":4,"galleryThumbnailsAlignment":"bottom","isMasonry":false,"isAutoSlideshow":false,"slideshowLoop":false,"autoSlideshowInterval":4,"bottomInfoHeight":0,"titlePlacement":"SHOW_ON_THE_RIGHT","galleryTextAlign":"center","scrollSnap":false,"itemClick":"nothing","fullscreen":true,"videoPlay":"hover","scrollAnimation":"NO_EFFECT","slideAnimation":"SCROLL","scrollDirection":0,"scrollDuration":400,"overlayAnimation":"FADE_IN","arrowsPosition":0,"arrowsSize":23,"watermarkOpacity":40,"watermarkSize":40,"useWatermark":true,"watermarkDock":{"top":"auto","left":"auto","right":0,"bottom":0,"transform":"translate3d(0,0,0)"},"loadMoreAmount":"all","defaultShowInfoExpand":1,"allowLinkExpand":true,"expandInfoPosition":0,"allowFullscreenExpand":true,"fullscreenLoop":false,"galleryAlignExpand":"left","addToCartBorderWidth":1,"addToCartButtonText":"","slideshowInfoSize":200,"playButtonForAutoSlideShow":false,"allowSlideshowCounter":false,"hoveringBehaviour":"NEVER_SHOW","thumbnailSize":120,"magicLayoutSeed":1,"imageHoverAnimation":"NO_EFFECT","imagePlacementAnimation":"NO_EFFECT","calculateTextBoxWidthMode":"PERCENT","textBoxHeight":0,"textBoxWidth":200,"textBoxWidthPercent":50,"textImageSpace":10,"textBoxBorderRadius":0,"textBoxBorderWidth":0,"loadMoreButtonText":"","loadMoreButtonBorderWidth":1,"loadMoreButtonBorderRadius":0,"imageInfoType":"ATTACHED_BACKGROUND","itemBorderWidth":0,"itemBorderRadius":0,"itemEnableShadow":false,"itemShadowBlur":20,"itemShadowDirection":135,"itemShadowSize":10,"imageLoadingMode":"BLUR","expandAnimation":"NO_EFFECT","imageQuality":90,"usmToggle":false,"usm_a":0,"usm_r":0,"usm_t":0,"videoSound":false,"videoSpeed":"1","videoLoop":true,"jsonStyleParams":"","gallerySizeType":"px","gallerySizePx":818,"allowTitle":true,"allowContextMenu":true,"textsHorizontalPadding":-30,"itemBorderColor":{"value":"#FFCBAA"},"showVideoPlayButton":true,"galleryLayout":2,"targetItemSize":818,"selectedLayout":"2|bottom|1|fill|true|0|true","layoutsVersion":2,"selectedLayoutV2":2,"isSlideshowFont":false,"externalInfoHeight":0,"externalInfoWidth":0.5},"container":{"width":818,"galleryWidth":850,"galleryHeight":0,"scrollBase":0,"height":null}}
