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Yang, Tong
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Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
79 lines
11 KiB
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79 lines
11 KiB
HTML
<a name="ALM-13006"></a><a name="ALM-13006"></a>
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<h1 class="topictitle1">ALM-13006 Znode Number or Capacity Exceeds the Threshold</h1>
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<div id="body1547262939874"><div class="section" id="ALM-13006__section18794533"><h4 class="sectiontitle">Description</h4><p id="ALM-13006__p11370173266">The system periodically detects the status of secondary Znode in the ZooKeeper service data directory every four hours. This alarm is generated when the number or capacity of secondary Znodes exceeds the threshold.</p>
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<div class="section" id="ALM-13006__section34933073"><h4 class="sectiontitle">Attribute</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-13006__table52262125" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-13006__row24697033"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-13006__en-us_topic_0070543636_p44032603">Alarm ID</p>
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<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.2"><p id="ALM-13006__en-us_topic_0070543636_p9871120">Alarm Severity</p>
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<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.3"><p id="ALM-13006__en-us_topic_0070543636_p61363278">Automatically Cleared</p>
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<tbody><tr id="ALM-13006__row37919625"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-13006__en-us_topic_0070543636_p18392962">13006</p>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.2 "><p id="ALM-13006__en-us_topic_0070543636_p13434953">Minor</p>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.3 "><p id="ALM-13006__en-us_topic_0070543636_p14489400">Yes</p>
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</div>
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<div class="section" id="ALM-13006__section45962205"><h4 class="sectiontitle">Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-13006__table51772816" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-13006__row55869420"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="ALM-13006__en-us_topic_0070543636_p28093062">Name</p>
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<th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.2"><p id="ALM-13006__en-us_topic_0070543636_p60945575">Meaning</p>
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<tbody><tr id="ALM-13006__row385143516378"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-13006__p192431315431">Source</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-13006__p692551319435">Specifies the cluster for which the alarm is generated.</p>
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<tr id="ALM-13006__row57640736"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-13006__en-us_topic_0070543636_p29312231">ServiceName</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-13006__en-us_topic_0070543636_p25480534">Specifies the service name for which the alarm is generated.</p>
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<tr id="ALM-13006__row477048"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-13006__en-us_topic_0070543636_p53263142">ServiceDirectory</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-13006__p17361818514">Specifies the directory for which the alarm is generated.</p>
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<tr id="ALM-13006__row50597141"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-13006__en-us_topic_0070543636_p10692219">Trigger Condition</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-13006__en-us_topic_0070543636_p60763443">Specifies the cause of the alarm.</p>
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<div class="section" id="ALM-13006__section11006666"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-13006__p14730421">A large amount of data is written to the ZooKeeper data directory. As a result, ZooKeeper cannot provide normal services.</p>
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</div>
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<div class="section" id="ALM-13006__section31951138"><h4 class="sectiontitle">Possible Causes</h4><p id="ALM-13006__p3231240893">A large amount of data is written to the ZooKeeper data directory. The threshold is not appropriate.</p>
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<div class="section" id="ALM-13006__section433103353311"><h4 class="sectiontitle">Procedure</h4><p class="tableheading" id="ALM-13006__p33897081"><strong id="ALM-13006__b393592515539">Check whether a large amount of data is written to the directory for which the alarm is generated.</strong></p>
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<ol id="ALM-13006__ol3765182111"><li id="ALM-13006__li1197412314339"><span>On FusionInsight Manager, choose <strong id="ALM-13006__b0989163143314">O&M</strong> > <strong id="ALM-13006__b1098973103314">Alarm </strong>> <strong id="ALM-13006__b39898316336">Alarms</strong>. On the displayed interface, click the drop-down button of <strong id="ALM-13006__b2449248133115">Znode Number or Capacity Exceeds the Threshold</strong>. Confirm the Znode for which the alarm is generated in Location Information.</span></li><li id="ALM-13006__li177641181818"><span>Log in to FusionInsight Manager, open the ZooKeeper service interface, and select <strong id="ALM-13006__b13283115325311">Resource</strong>. In the table <strong id="ALM-13006__b528317533538">Used Resources (By Second-Level Znode)</strong>, check whether a large amount of data is written to the top-level Znode for which the alarm is reported.</span><p><ul class="subitemlist" id="ALM-13006__ul1676458911"><li id="ALM-13006__li127642815115">If it is, go to <a href="#ALM-13006__li47651981813">3</a>.</li><li id="ALM-13006__li11764081814">If it is not, go to <a href="#ALM-13006__li3567539141610">4</a>.</li></ul>
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</p></li><li id="ALM-13006__li47651981813"><a name="ALM-13006__li47651981813"></a><a name="li47651981813"></a><span>Log in to the ZooKeeper client and delete the data in the top-level Znode.</span></li><li id="ALM-13006__li3567539141610"><a name="ALM-13006__li3567539141610"></a><a name="li3567539141610"></a><span>Log in to FusionInsight Manager and open the ZooKeeper service interface. On the <strong id="ALM-13006__b1159282116553">Resource</strong> page, choose <span><img id="ALM-13006__image57475248451" src="en-us_image_0000001239732331.gif"></span> > <strong id="ALM-13006__b107518249458">By Znode quantity </strong>in<strong id="ALM-13006__b1027117321815"> Used Resources (By Second-Level Znode)</strong>. <strong id="ALM-13006__b6592132116551">Threshold </strong><strong id="ALM-13006__b1054211994713">Configuration of By Znode quantity</strong> is displayed. Click <strong id="ALM-13006__b459272120553">Modify</strong> under <strong id="ALM-13006__b105921721185516">Operation</strong>. Increase the threshold by referringto the value of <strong id="ALM-13006__b14592102195511">max.Znode.count</strong> by choosing <strong id="ALM-13006__b7433193216335">Cluster > </strong><em id="ALM-13006__i421463722619">Name of the desired cluster</em><strong id="ALM-13006__b84331232113317"> > Services</strong> > <strong id="ALM-13006__b114333323337">ZooKeeper</strong> > <strong id="ALM-13006__b164331732163312">Configurations > All Configurations</strong><strong id="ALM-13006__b15927218551"> > Quota</strong>.</span></li><li id="ALM-13006__li9765881211"><span>In the <strong id="ALM-13006__b102034289614">Used Resources (By Second-Level Znode)</strong>, choose <span><img id="ALM-13006__image2201162810611" src="en-us_image_0000001239292351.gif"></span> > <strong id="ALM-13006__b4208441362">By capacity</strong>. The <strong id="ALM-13006__b1569135817619">Threshold Settings</strong> page of <strong id="ALM-13006__b205691658961">By Capacity</strong> is displayed. Click <strong id="ALM-13006__b3240163445520">Modify</strong> under <strong id="ALM-13006__b1224015342551">Operation</strong>. Increase the threshold by referring to the value of <strong id="ALM-13006__b112404343558">max.data.size</strong> by choosing <strong id="ALM-13006__b6212173752610">Cluster > </strong><em id="ALM-13006__i1526192312156">Name of the desired cluster</em><strong id="ALM-13006__b1421320375260"> > Services</strong> > <strong id="ALM-13006__b12335119161213">ZooKeeper</strong> > <strong id="ALM-13006__b102081427618">Configurations > All Configurations</strong> > <strong id="ALM-13006__b12401834175516">Quota</strong>.</span></li><li id="ALM-13006__li776515817114"><span>Check whether the alarm is cleared.</span><p><ul id="ALM-13006__ul20765981117"><li id="ALM-13006__li11765382114">If it is, no further action is required.</li><li id="ALM-13006__li37651582017">If it is not, go to <a href="#ALM-13006__li27634817118">7</a>.</li></ul>
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</p></li></ol>
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<p class="tableheading" id="ALM-13006__p4863846161727"><strong id="ALM-13006__b60263252161739">Collect fault information.</strong></p>
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<ol start="7" id="ALM-13006__ol117641584110"><li id="ALM-13006__li27634817118"><a name="ALM-13006__li27634817118"></a><a name="li27634817118"></a><span>On the FusionInsight Manager portal, choose <strong id="ALM-13006__b476328715">O&M</strong> > <strong id="ALM-13006__b0763158616">Log > Download</strong>.</span></li><li id="ALM-13006__li1676319812119"><span>Select <strong id="ALM-13006__b133686503436">ZooKeeper </strong>in the required cluster from the <strong id="ALM-13006__b107631681219">Service</strong>.</span></li><li id="ALM-13006__li47641815116"><span>Click <span><img id="ALM-13006__image107644811115" src="en-us_image_0269383949.png"></span> in the upper right corner, and set <strong id="ALM-13006__b10764198312">Start Date</strong> and <strong id="ALM-13006__b1376412817111">End Date</strong> for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click <strong id="ALM-13006__b1376468310">Download</strong>.</span></li><li id="ALM-13006__li1776418716"><span>Contact the <span id="ALM-13006__text4614151421417">O&M personnel</span> and send the collected logs.</span></li></ol>
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</div>
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<div class="section" id="ALM-13006__section1529716184534"><h4 class="sectiontitle">Alarm Clearing</h4><p id="ALM-13006__p4677152685316">After the fault is rectified, the system automatically clears this alarm.</p>
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<div class="section" id="ALM-13006__sb2eb8883fb1940d0b05b690215576d2e"><h4 class="sectiontitle">Related Information</h4><p id="ALM-13006__en-us_topic_0070543636_p64481034">None</p>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="mrs_01_1298.html">Alarm Reference (Applicable to MRS 3.x)</a></div>
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