About madhura2688

madhura2688 · ‎12-10-2019

Hi @Shelton When I run that command its saying: How do I know the exact path?or what other commands I can try? <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <title>Error 404 Not Found</title> </head> <body><h2>HTTP ERROR 404</h2> <p>Problem accessing /solr/ranger_audits/update. Reason: <pre> Not Found</pre></p><hr><i><small>Powered by Jetty://</small></i><hr/>

madhura2688 · ‎12-09-2019

@Shelton , I am using below CURL command !/bin/sh curl -v --negotiate -u : 'http://<host>:8886/solr/ranger_audits/update?commit=true' -H 'Content-Type: text/xml' --data-binary '<delete><query>evtTime:[* TO NOW-30DAYS]</query></delete>' you mentioned after that launch notice commit=true. How should I launch that ? @Shelton

madhura2688 · ‎12-09-2019

Hi , My solr data directory is full. /opt/ambari_infra_solr/data/ranger_audits_shard1_replica1/data/index Can I delete any data from this? I tried to use CURL command but it didn't work as it throws error as no space left on device. Can you please help? @jsensharma @Shelton

madhura2688 · ‎07-29-2019

@Jay Kumar SenSharma @Geoffrey Shelton Okot Can you please help?

madhura2688 · ‎07-29-2019

Hi, I want to rebalance cluster, but I am not sure how this threshold value is calculated? What threshold I should keep to finish it quickly? I am not looking for a good balance right now. But one of our datanode is now over 80% used and we do want to reduce it to atleast 60% or 70% Can you please tell me what threshold we should keep and how I can monitor HDFS balancing is finished or not in ambari?

madhura2688 · ‎07-26-2019

How to calculate number of total containers in cluster? Does it depend on Memory? or VCores ? How can I get the exact number of containers which are available in my cluster.?

madhura2688 · ‎07-11-2019

@Jay Kumar SenSharma @Geoffrey Shelton Okot ... Can you please help in this?

madhura2688 · ‎07-08-2019

Hi, We received below alert "NameNode RPC Latency" - I checked hadoop-hdfs/namenode logs, but I couldnt find anything wrong. Why this alert gets triggered? and is there any other logs I can check for this alert?

madhura2688 · ‎05-14-2019

Hi @Geoffrey Shelton Okot, Thank you for your response. Yes, we currently have that ibdata file on a disk- which we believe we can increase the size of the of the same disk. if we change the size of the same disk then do we need to update the location anywhere? As we are not changing location of the ibdata file. is that correct? Please suggest.

madhura2688 · ‎05-14-2019

@Jay Kumar SenSharma - Can you please suggest based upon the requested information?

madhura2688 · ‎05-13-2019

@Jay Kumar SenSharma ... Can you please suggest based upon the requested information?

madhura2688 · ‎05-12-2019

@Jay Kumar SenSharma Thank you for your response. Here is the requested output : +--------------------+---------------+ | DB Name | DB Size in MB | +--------------------+---------------+ | ambaridb | 651.8 | | hivedb | 30274.0 | | information_schema | 0.1 | | mysql | 0.6 | | ooziedb | 7041.9 | | performance_schema | 0.0 | | rangerdb | 29.4 | +--------------------+---------------+ I have few followup questions: 1. If we delete the data from the table will ibdata1 file size will shrink? 2. Can we increase the disk size for that mount point where the ibdata1 file resides? what steps we will need to take? appreciate your help in this!

madhura2688 · ‎05-12-2019

Hi , We are using mysql for our cluster database. Currently we are seeing size of -rw-rw----. 1 mysql mysql 37G May 1 18:55 ibdata1 This database has - ambaridb/rangerdb/hivedb etc. is increasing day by day. and we don't enough space on the disk.. Is there any easy way where we can reduce the size of this mysql db? Or is there a way if we can move this to some other disk? or increase the size of this mount point? Please need suggestion

madhura2688 · ‎04-26-2019

@Geoffrey Shelton Okot Thank you. I think Decommissioning is a best way to do this. Do I need to turn on maintainance mode while I do decommissioning datanode? Also Do I need to stop the services like - NodeManager, Ambari metrics for that datanode after decommissioning?

madhura2688 · ‎04-25-2019

@Geoffrey Shelton Okot Thank you for your response. Instead of Decommissioning the node Can I stop it? What is the difference? Whats the best way to stop it or Decommission?

madhura2688 · ‎04-24-2019

Hi , We are using 12 Datanodes in our cluster. And we have 3 replication factor. Currently we are doing cost optimization and our total cluster is 35% used. We want to remove one datanode from our cluster, but we want to see first how our cluster performs on 11 datanodes. if it doesn't perform well, we need to restart that datanode again. To experiment this- Do I need to Stop the datanode or Decomission datanode? Please need suggestion.

madhura2688 · ‎03-22-2019

Currently we are seeing our HDFS DFS directory is getting filled up and we have to remove the data at faster rate. We currently have 12 datanodes and 4 masternodes 1 edgenode. Can I delete the files from HDFS from masternodes and edgenodes at once? I have created a script on edgenode which deletes the HDFS files but speed is really slow. How can I delete multiple files at a time ? Can I place that script on multiple server and delete the files?

madhura2688 · ‎02-12-2019

@Geoffrey Shelton Okot Even after doing Rebalance HDFS to 25% threshold value, I still see the disk is 100% , IS hdfs not able to read it from the disk as its full, Also I had to set the DataNode failed disk tolerance to 1 as HDFS service was not coming up on that node. Can we delete the data manually from that particular disk? is there any way?

madhura2688 · ‎02-11-2019

Hi, We currently have 8 Datanodes which has two hdfs disk mounted on each of the datanodes. One of the disk from the datanode is full. On this node HDFS(nodemanager) service was not coming up as it had below error Upon checking into articles found out that we can setup- "DataNode failed disk tolerance" value to 1 and ignore this volume as its 100% full, But I would like to understand how I can cleanup the data from this disk? I tried doing rebalance HDFS but which threshold value I should use? StorageLocation [DISK]file:/hdfs/data1/hadoop/hdfs/data/ org.apache.hadoop.util.DiskChecker$DiskErrorException: Error checking directory /hdfs/data1/hadoop/hdfs/data /dev/xvdl 50G 49G 0 100% /hdfs/data1 /dev/xvdk 50G 27G 21G 56% /hdfs/data0

madhura2688 · ‎02-08-2019

Hey @Geoffrey Shelton Okot . I tried this command but it does not work as my current disk is 2.5TB and disk I am copying to is 1.7TB ... and this command requires that it should be of same disk size. Is there any other alternate way?

madhura2688 · ‎02-08-2019

Hi, We currently have 13 EBS disks volumes in our one datanode, we have around 10 such datanodes each disk of the data node is of 1.5 TB used. We want to copy 1.5TB of volume to new disk. copying 100GB take about an hour or more. so 1.5TB will take so many hours to copy. Is there any faster way to copy the data? I am using rsync command to copy to new disk.

madhura2688 · ‎11-20-2018

Hi, I am seeing that suddenly causing CPU spike earlier it was using 10% CPU now if I run top command I do see that Ambari infra solr causing 60% CPU spike.. and I see GC logs are almost 2GB Can someone tell me why there is so much spike ? Thanks

madhura2688 · ‎11-14-2018

Recently we had issue with hiveserver2. After increasing the hive.server2.thrift.max.worker.threads to 1000 the issue seems to have resolved. How can we analyze the hiveserver jstack/threadump? What is the maximum value of hive.server2.thrift.max.worker.threads can have? Do we need to consider memory or anything while increasing threads?

madhura2688 · ‎10-26-2018

Hi I do see lot of under replicated blocks in Ambari UI. Block Errors: 0 corrupt replica / 0 missing / 26463 under replicated What should I do in this case? Can someone help me how to fix this? Thanks

madhura2688 · ‎10-22-2018

@Aditya Sirna and @Jay Kumar SenSharma Can you please help me with this?

madhura2688 · ‎10-19-2018

Hi, I have installed spark2 on the server. I do see some jobs are in the running status in resource manager and not getting completed. the user and name of those job is : hive Thrift JDBC/ODBC Server hive org.apache.spark.sql.hive.thriftserver.HiveThriftServer2 Which are these jobs and why its not getting completed? Is it expected that after installation of spart2 services such as Spark2 History Server Livy for Spark2 Server Spark2 Thrift Server that these jobs will run? Kindly help, Thanks

madhura2688 · ‎10-17-2018

Hi @Aditya Sirna I tried to follow this steps however, Spark2 History server is not available to ADD on another node? I could add Livy for spark2 and Spark2 Thrift Server.. Can you please tell me how I should move the clients? Can you please help ? Thank you

madhura2688 · ‎10-17-2018

No Move button for Spark2 in Ambari . Why? If I have to move spark2. I will need to add service to node and then restart the service right? What happens to the existing spark2-clients in the node. if I try to add another spark2 components?

madhura2688 · ‎10-15-2018

@Jay Kumar SenSharma Can you please help me with this one?

madhura2688 · ‎10-14-2018

Hi All, I have spark components installed on one host. Here are the components- Livy for Spark2 Server Spark2 Thrift Server Spark2 History Server I want to move this components to other host, as I have to stop the current running host which has these components. Can you please let me know how I should perform this moving components and do I need to change anything on application side? Can I move this through Ambari ? Also, any service restart is required? Appreciate your help! Thanks.

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Last Visited	‎12-10-2019 10:41 AM

Date Registered	‎10-04-2018 04:56 PM
Last Visited	‎12-10-2019 10:41 AM
Total Messages Posted	39

Re: Solr data directory issue

Re: Solr data directory issue

Solr data directory issue

Re: What threshold we should keep to Rebalancing H...

What threshold we should keep to Rebalancing HDFS ...

How to calculate number of total containers?

Re: Alert "NameNode RPC Latency" What could be wro...

Alert "NameNode RPC Latency" What could be wrong?

Re: Cluster Mysql metadata Database size is increa...

Re: Cluster Mysql metadata Database size is increa...

Re: Cluster Mysql metadata Database size is increa...

Re: Cluster Mysql metadata Database size is increa...

Cluster Mysql metadata Database size is increasing...

Re: Need suggestion to stop or Decommission Datano...

Re: Need suggestion to stop or Decommission Datano...

Need suggestion to stop or Decommission Datanode?

Can I delete multiple files from hdfs?

Re: How to cleanup data from single HDFS disk?

How to cleanup data from single HDFS disk?

Re: EBS volume resize to smaller size, is there an...

EBS volume resize to smaller size, is there any fa...

Ambari Infra Solr causing CPU spike

How to Analyze thread dump from hiveserver?

Under replicated blocks - how to fix it?

Re: After installing spark2 some spark jobs appear...

After installing spark2 some spark jobs appears to...

Re: How to move Spark2 components to another node?

No Move button for Spark2 in Ambari . Why?

Re: How to move Spark2 components to another node?

How to move Spark2 components to another node?