WebHBase出现热点问题的主要原因无非就是rowkey设计的合理性,像上面这种问题,如果rowkey设计得不好,很容易出现,比如:用时间戳生成rowkey,由于时间戳在一段时间内都是连续的,导致在不同的时间段,访问都集中在几个RegionServer上,从而造成热点问题。 解决 知道了问题的原因,对症下药即可,联系应用修改rowkey规则,使rowkey数据随机 … WebAug 1, 2016 · HBase Java API scan is too slow Solved Go to solution HBase Java API scan is too slow Labels: Apache HBase koffitse Explorer Created 07-31-2016 10:44 PM Hi all, I am using API for java to fetch data from a hbase table that contains 40 millions rows. I use the PrefixFilter on a Scanner to retrieve data.
Re: Troubleshooting ipc.RpcServer: (responseTooSlow)
Web2. The HBase migrations script respond like no files in the root directory, upon running that. Cause: – Using Hadoop Distributed file system, create a new directory for HBase. Two … WebNov 11, 2015 · To evaluate a responseTooSlow, look at the reported parameters: "processingtimems":11063, "call":"Multi … setting up budget categories
HBase LeaseException - Cloudera Community - 302599
WebNov 11, 2015 · To evaluate a responseTooSlow, look at the reported parameters: "processingtimems":11063, "call":"Multi (org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ MultiRequest)", "client":"10.125.122.203:41488", "starttimems":1447206125517, "queuetimems":1, … WebMake sure the responseTooSlow, etc., logs region at least and possibly row. As one well-known tall man once said: I really hate this : … WebThe java client extracts data from a relational database and puts those data into hbase. When I try to extract data from a large table (say, 1 billion records), the error happens. 2012-10-28 00:00:02,169 WARN org.apache.hadoop.hbase.regionserver.MemStoreFlusher: Region statistic_visit_detail,20120804 72495 8549 setting up buildozer