https://community.cloudera.com/t5/Support-Questions/kudu-tablet-server-slow-to-start/m-p/343940#M234046 <P>When we restart or start kudu tablet server component through cloudera manager, it takes a long time to communicate with kudu master, it takes more than 10 minutes.</P><P>&nbsp;</P><P>why does this occur?</P><P>&nbsp;</P><P>when we start the kudu tablet server component and follow the log, it keeps loading the lines as shown in the screenshot below:</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="slow_start_tablet_server.PNG" style="width: 993px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/34405i9F92F2A91BB11338/image-size/large?v=v2&amp;px=999" role="button" title="slow_start_tablet_server.PNG" alt="slow_start_tablet_server.PNG" /></span></P> Tue, 17 May 2022 21:19:52 GMT yagoaparecidoti 2022-05-17T21:19:52Z https://community.cloudera.com/t5/Support-Questions/kudu-tablet-server-slow-to-start/m-p/343940#M234046 <P>When we restart or start kudu tablet server component through cloudera manager, it takes a long time to communicate with kudu master, it takes more than 10 minutes.</P><P>&nbsp;</P><P>why does this occur?</P><P>&nbsp;</P><P>when we start the kudu tablet server component and follow the log, it keeps loading the lines as shown in the screenshot below:</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="slow_start_tablet_server.PNG" style="width: 993px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/34405i9F92F2A91BB11338/image-size/large?v=v2&amp;px=999" role="button" title="slow_start_tablet_server.PNG" alt="slow_start_tablet_server.PNG" /></span></P> Tue, 17 May 2022 21:19:52 GMT https://community.cloudera.com/t5/Support-Questions/kudu-tablet-server-slow-to-start/m-p/343940#M234046 yagoaparecidoti 2022-05-17T21:19:52Z https://community.cloudera.com/t5/Support-Questions/kudu-tablet-server-slow-to-start/m-p/343941#M234047 <P>Hello&nbsp;<A href="https://community.cloudera.com/t5/user/viewprofilepage/user-id/96163" target="_blank" rel="noopener"><SPAN>yagoaparecidoti</SPAN></A></P><P><SPAN>When you start the tablet servers, kudu needs to read all of the block containers located in that tablet server.</SPAN></P><P><SPAN>Depending on how much data is stored there, is the amount of time it can take to open all the containers.&nbsp; Several variables are also involved such as disk performance, how busy is the host doing other things, if the disks are shared, etc...</SPAN></P><P><SPAN>If it happens to only one host, chances are this host is either facing some hardware issues or have a lot of data to process, otherwise you only have a lot of block containers to work with.</SPAN></P><P>&nbsp;</P><P><SPAN>Please let us know if there are further questions we can clarify for you.</SPAN></P><P><SPAN>Jason</SPAN></P> Tue, 17 May 2022 21:39:19 GMT https://community.cloudera.com/t5/Support-Questions/kudu-tablet-server-slow-to-start/m-p/343941#M234047 jromero 2022-05-17T21:39:19Z