I used it but I didn't like the fact that the graph was updating every minute and sometimes every 5 minutes.
Sent from my iPhone On 10 ביול 2012, at 06:57, Otis Gospodnetic <[email protected]> wrote: Asaf - check the URL in my signature - it's a service for monitoring various HBase metrics and may visually show you what is going on with various parts of your 3 servers. Otis ---- Performance Monitoring for Solr / ElasticSearch / HBase - http://sematext.com/spm ----- Original Message ----- From: Asaf Mesika <[email protected]> To: [email protected] Cc: Sent: Monday, July 9, 2012 2:35 PM Subject: HBase becomes ultra-slaggy Hi, My cluster started being incredibly slow in the past 2 days. I've seen many Blocking updates on the region server logs, which lead me to believe HDFS creates is the bottleneck. I ran a small test (hadoop fs -copyFromLocal big3_3Giga.tz.gz /tmp) which copies a 3.3G file, and I was surprised to see a rate of 11MB/sec, when it was previously around 28MB/sec. I have 3 RS computers, hosting DataNode and embedded zookeeper as well. And 1 Master computer, hosting NameNode as well. The slowest computer has Core 2 Duo 2.93GHz, 4GB. What steps can I take to find out the source of this slowdown? Thanks! Asaf Mesika
