{"id":183,"date":"2006-01-15T17:41:45","date_gmt":"2006-01-15T14:41:45","guid":{"rendered":"http:\/\/void.gr\/kargig\/blog\/?p=183"},"modified":"2007-05-21T01:19:00","modified_gmt":"2007-05-20T22:19:00","slug":"howto-remove-spikes-from-rrd-graphs","status":"publish","type":"post","link":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/","title":{"rendered":"HOWTO remove spikes from RRD graphs"},"content":{"rendered":"<p>If you happen to use rrdtool to create graphs to monitor equipment you might have come upon some &#8220;spikes&#8221; in your graphs. These are perfectly normal and happend due to machines  that have rebooted and have reset their counters or other anomalies that might occur.<\/p>\n<p>There is a script called removespikes.pl made specially to fix these cases. You can either find the tool here: <a href=\"http:\/\/oss.oetiker.ch\/rrdtool\/pub\/contrib\/removespikes.tar.gz\">http:\/\/oss.oetiker.ch\/rrdtool\/pub\/contrib\/removespikes.tar.gz<\/a> or get it from my blog <a href='http:\/\/void.gr\/kargig\/blog\/wp-content\/removespikes.pl.gz' title=''>removespikes.pl.gz<\/a><\/p>\n<p>Extract it, and then type something in the command line like the following:<br \/>\n<code>for i in \/location\/of\/rrds\/*; do \/full\/path\/to\/removespikes.pl $i; done;<\/code><\/p>\n<p>You should probably see some messages like these:<\/p>\n<blockquote><p>Chopping peak at                        &lt;!&#8211; 2005-10-25 17:00:00 EEST \/ 1130248800 &#8211;&gt;<br \/>\nChopping peak at                        &lt;!&#8211; 2005-10-25 19:00:00 EEST \/ 1130256000 &#8211;&gt;\n<\/p><\/blockquote>\n<p>That&#8217;s all&#8230;enjoy your graphs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you happen to use rrdtool to create graphs to monitor equipment you might have come upon some &#8220;spikes&#8221; in your graphs. These are perfectly normal and happend due to machines that have rebooted and have reset their counters or other anomalies that might occur. There is a script called removespikes.pl made specially to fix [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"footnotes":""},"categories":[3,8],"tags":[],"class_list":["post-183","post","type-post","status-publish","format-standard","hentry","category-linux","category-networking"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"If you happen to use rrdtool to create graphs to monitor equipment you might have come upon some &quot;spikes&quot; in your graphs. These are perfectly normal and happend due to machines that have rebooted and have reset their counters or other anomalies that might occur. There is a script called removespikes.pl made specially to fix\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"kargig\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/2006\\\/01\\\/15\\\/howto-remove-spikes-from-rrd-graphs\\\/#article\",\"name\":\"HOWTO remove spikes from RRD graphs | Into.the.Void.\",\"headline\":\"HOWTO remove spikes from RRD graphs\",\"author\":{\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/author\\\/site-admin\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/#organization\"},\"datePublished\":\"2006-01-15T17:41:45+02:00\",\"dateModified\":\"2007-05-21T01:19:00+03:00\",\"inLanguage\":\"en-US\",\"commentCount\":10,\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/2006\\\/01\\\/15\\\/howto-remove-spikes-from-rrd-graphs\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/2006\\\/01\\\/15\\\/howto-remove-spikes-from-rrd-graphs\\\/#webpage\"},\"articleSection\":\"Linux, Networking\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/2006\\\/01\\\/15\\\/howto-remove-spikes-from-rrd-graphs\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/category\\\/linux\\\/#listItem\",\"name\":\"Linux\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/category\\\/linux\\\/#listItem\",\"position\":2,\"name\":\"Linux\",\"item\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/category\\\/linux\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/2006\\\/01\\\/15\\\/howto-remove-spikes-from-rrd-graphs\\\/#listItem\",\"name\":\"HOWTO remove spikes from RRD graphs\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/2006\\\/01\\\/15\\\/howto-remove-spikes-from-rrd-graphs\\\/#listItem\",\"position\":3,\"name\":\"HOWTO remove spikes from RRD graphs\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/category\\\/linux\\\/#listItem\",\"name\":\"Linux\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/#organization\",\"name\":\"Into.the.Void.\",\"description\":\"Into The Void\",\"url\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/\",\"sameAs\":[\"https:\\\/\\\/x.com\\\/kargig\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/author\\\/site-admin\\\/#author\",\"url\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/author\\\/site-admin\\\/\",\"name\":\"kargig\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/2006\\\/01\\\/15\\\/howto-remove-spikes-from-rrd-graphs\\\/#webpage\",\"url\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/2006\\\/01\\\/15\\\/howto-remove-spikes-from-rrd-graphs\\\/\",\"name\":\"HOWTO remove spikes from RRD graphs | Into.the.Void.\",\"description\":\"If you happen to use rrdtool to create graphs to monitor equipment you might have come upon some \\\"spikes\\\" in your graphs. These are perfectly normal and happend due to machines that have rebooted and have reset their counters or other anomalies that might occur. There is a script called removespikes.pl made specially to fix\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/2006\\\/01\\\/15\\\/howto-remove-spikes-from-rrd-graphs\\\/#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/author\\\/site-admin\\\/#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/author\\\/site-admin\\\/#author\"},\"datePublished\":\"2006-01-15T17:41:45+02:00\",\"dateModified\":\"2007-05-21T01:19:00+03:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/\",\"name\":\"Into.the.Void.\",\"description\":\"Into The Void\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.void.gr\\\/kargig\\\/blog\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"HOWTO remove spikes from RRD graphs | Into.the.Void.","description":"If you happen to use rrdtool to create graphs to monitor equipment you might have come upon some \"spikes\" in your graphs. These are perfectly normal and happend due to machines that have rebooted and have reset their counters or other anomalies that might occur. There is a script called removespikes.pl made specially to fix","canonical_url":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/#article","name":"HOWTO remove spikes from RRD graphs | Into.the.Void.","headline":"HOWTO remove spikes from RRD graphs","author":{"@id":"https:\/\/www.void.gr\/kargig\/blog\/author\/site-admin\/#author"},"publisher":{"@id":"https:\/\/www.void.gr\/kargig\/blog\/#organization"},"datePublished":"2006-01-15T17:41:45+02:00","dateModified":"2007-05-21T01:19:00+03:00","inLanguage":"en-US","commentCount":10,"mainEntityOfPage":{"@id":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/#webpage"},"isPartOf":{"@id":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/#webpage"},"articleSection":"Linux, Networking"},{"@type":"BreadcrumbList","@id":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/www.void.gr\/kargig\/blog\/#listItem","position":1,"name":"Home","item":"https:\/\/www.void.gr\/kargig\/blog\/","nextItem":{"@type":"ListItem","@id":"https:\/\/www.void.gr\/kargig\/blog\/category\/linux\/#listItem","name":"Linux"}},{"@type":"ListItem","@id":"https:\/\/www.void.gr\/kargig\/blog\/category\/linux\/#listItem","position":2,"name":"Linux","item":"https:\/\/www.void.gr\/kargig\/blog\/category\/linux\/","nextItem":{"@type":"ListItem","@id":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/#listItem","name":"HOWTO remove spikes from RRD graphs"},"previousItem":{"@type":"ListItem","@id":"https:\/\/www.void.gr\/kargig\/blog\/#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/#listItem","position":3,"name":"HOWTO remove spikes from RRD graphs","previousItem":{"@type":"ListItem","@id":"https:\/\/www.void.gr\/kargig\/blog\/category\/linux\/#listItem","name":"Linux"}}]},{"@type":"Organization","@id":"https:\/\/www.void.gr\/kargig\/blog\/#organization","name":"Into.the.Void.","description":"Into The Void","url":"https:\/\/www.void.gr\/kargig\/blog\/","sameAs":["https:\/\/x.com\/kargig"]},{"@type":"Person","@id":"https:\/\/www.void.gr\/kargig\/blog\/author\/site-admin\/#author","url":"https:\/\/www.void.gr\/kargig\/blog\/author\/site-admin\/","name":"kargig"},{"@type":"WebPage","@id":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/#webpage","url":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/","name":"HOWTO remove spikes from RRD graphs | Into.the.Void.","description":"If you happen to use rrdtool to create graphs to monitor equipment you might have come upon some \"spikes\" in your graphs. These are perfectly normal and happend due to machines that have rebooted and have reset their counters or other anomalies that might occur. There is a script called removespikes.pl made specially to fix","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/www.void.gr\/kargig\/blog\/#website"},"breadcrumb":{"@id":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/#breadcrumblist"},"author":{"@id":"https:\/\/www.void.gr\/kargig\/blog\/author\/site-admin\/#author"},"creator":{"@id":"https:\/\/www.void.gr\/kargig\/blog\/author\/site-admin\/#author"},"datePublished":"2006-01-15T17:41:45+02:00","dateModified":"2007-05-21T01:19:00+03:00"},{"@type":"WebSite","@id":"https:\/\/www.void.gr\/kargig\/blog\/#website","url":"https:\/\/www.void.gr\/kargig\/blog\/","name":"Into.the.Void.","description":"Into The Void","inLanguage":"en-US","publisher":{"@id":"https:\/\/www.void.gr\/kargig\/blog\/#organization"}}]}},"aioseo_meta_data":{"post_id":"183","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"Article","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2022-01-04 12:01:25","updated":"2026-10-21 09:16:56","focus_keyword":null,"additional_keywords":null,"truseo_locale":null,"ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.void.gr\/kargig\/blog\/\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.void.gr\/kargig\/blog\/category\/linux\/\" title=\"Linux\">Linux<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tHOWTO remove spikes from RRD graphs\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/www.void.gr\/kargig\/blog\/"},{"label":"Linux","link":"https:\/\/www.void.gr\/kargig\/blog\/category\/linux\/"},{"label":"HOWTO remove spikes from RRD graphs","link":"https:\/\/www.void.gr\/kargig\/blog\/2006\/01\/15\/howto-remove-spikes-from-rrd-graphs\/"}],"views":21953,"_links":{"self":[{"href":"https:\/\/www.void.gr\/kargig\/blog\/wp-json\/wp\/v2\/posts\/183","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.void.gr\/kargig\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.void.gr\/kargig\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.void.gr\/kargig\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.void.gr\/kargig\/blog\/wp-json\/wp\/v2\/comments?post=183"}],"version-history":[{"count":0,"href":"https:\/\/www.void.gr\/kargig\/blog\/wp-json\/wp\/v2\/posts\/183\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.void.gr\/kargig\/blog\/wp-json\/wp\/v2\/media?parent=183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.void.gr\/kargig\/blog\/wp-json\/wp\/v2\/categories?post=183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.void.gr\/kargig\/blog\/wp-json\/wp\/v2\/tags?post=183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}