Re: HBase PerformanceEvaluation failing

2007-11-19 Thread Ted Dunning
This sounds like a platform issue. SecureRandom requires a real seed and on BSD/Linux platforms, that is usually provided by /dev/random. If your instance doesn't have access to enough sources of entropy or if some other consumer is eating too many random bits, then /dev/random can hang. On 11

Re: HBase PerformanceEvaluation failing

2007-11-19 Thread Raghu Angadi
Do you know if this is a known issue with JVM and a bug is filed? If this is not expected to be fixed anytime soon, we might be able to work around. If you can, please try some other varition of SecureRandom that works on your platform. Otherwise we might replace it with something else. We used Se

RE: HBase PerformanceEvaluation failing

2007-11-19 Thread 闫雪冰
help. -Xuebing Yan -邮件原件- 发件人: Kareem Dana [mailto:[EMAIL PROTECTED] 发送时间: 2007年11月16日 9:32 收件人: hadoop-user@lucene.apache.org 主题: Re: HBase PerformanceEvaluation failing My DFS appears healthy. After the PE fails, the datanodes are still running but all the HRegionServers have exited. My

RE: HBase PerformanceEvaluation failing

2007-11-15 Thread dhruba Borthakur
eem Dana [mailto:[EMAIL PROTECTED] 发送时间: 2007年11月16日 9:32 收件人: hadoop-user@lucene.apache.org 主题: Re: HBase PerformanceEvaluation failing My DFS appears healthy. After the PE fails, the datanodes are still running but all the HRegionServers have exited. My initial concern is free harddrive space or me

Re: HBase PerformanceEvaluation failing

2007-11-15 Thread Kareem Dana
My DFS appears healthy. After the PE fails, the datanodes are still running but all the HRegionServers have exited. My initial concern is free harddrive space or memory. Each node has ~1.5GB free space for DFS and 400MB ram/256mb swap. Is this enough for the PE? I tried monitoring the free space as

Re: HBase PerformanceEvaluation failing

2007-11-15 Thread stack
Your DFS is healthy? This seems odd: "File /tmp/hadoop-kcd/hbase/hregion_TestTable,2102165,6843477525281170954/info/mapfiles/6464987859396543981/datacould only be replicated to 0 nodes, instead of 1;" In my experience, IIRC, it means no datanodes running. (I just tried the PE from TRUNK and