Re: 2 bucket caches?

I think you may want to think a bit about this… How far do you want to go with your memory management? 'Off heap' is a new nifty way of saying application level swap and memory management. So what you are basically saying is that I have memory, local persistence, then HDFS persistence. And

Re: 2 bucket caches?

Hi Michael, All what you said is exactly what I have in mind. Being able to have a layered hierarchy with different storage engines ((Flash, SSD, Memory, etc.) that you can configure. It's not just offheap, but anything which can offload the BlockCache and which is still faster than going to the

Re: 2 bucket caches?

Hi J-M, N-leveled caching is something I've discussed with some folks but it hasn't been done. We already have multi-cache management strategies, such as CombinedBlockCache, so this would be making them more generic and exposing through configuration. Something you'd be interested in taking on?

ports of exteranl zookeeper ensemble

Hi dear all, I have an existing zookeeper ensemble, which is kafka01:2181,kafka02:2182,kafka03:2183,data04:2184,data05:2185 (port is different) and export HBASE_MANAGES_ZK=false in hbase-env.sh, and in hbase-site.xml property namehbase.zookeeper.quorum/name

Re: ports of exteranl zookeeper ensemble

Looks like the hbase release you use doesn't have HBASE-12706 which is in hbase 1.1.0 FYI On Mon, Jun 29, 2015 at 2:40 AM, 俞忠静 yuzhongj...@bianfeng.com wrote: Hi dear all, I have an existing zookeeper ensemble, which is kafka01:2181,kafka02:2182,kafka03:2183,data04:2184,data05:2185 (port

[RESULT][VOTE] First release candidate for HBase 1.1.1 (RC0) is available

The vote has passed with 3 binding +1's. J-M's concerns regarding test stability are well noted; hopefully we'll be more impressive in future releases. Thanks for testing the release. Nick On Tue, Jun 23, 2015 at 4:25 PM, Nick Dimiduk ndimi...@apache.org wrote: I'm happy to announce the first

2 bucket caches?

Hi, Is it possible to have 2 bucket cache on a single region server? Like L2 and L3? I would like to have L2 offheap and block evicted from L2 going into L3 on SSD. So we already have something like that? Or should I open a JIRA? hbase.bucketcache.ioengine can get only one value. Might be nice

Re: RegionServer 60030 Show All RPC Handler Task is empty

Anybody can help? 2015-06-26 23:05 GMT+08:00 Louis Hust louis.h...@gmail.com: Hi, all We are using 0.98.6-cdh5.2.0, rUnknown And when we visit the web regionserverhost:60030 to see Show All RPC Handler Tasks, found No tasks currently running on this node. But we configure property

Re: Scan got exception

BTW, the hbase is hbase0.98.6 CHD5.2.0 2015-06-30 11:31 GMT+08:00 Louis Hust louis.h...@gmail.com: Hi, all When I scan a table using hbase shell, got the following message: hbase(main):001:0 scan 'atpco:ttf_record6' ROW COLUMN+CELL ERROR:

Scan got exception

Hi, all When I scan a table using hbase shell, got the following message: hbase(main):001:0 scan 'atpco:ttf_record6' ROW COLUMN+CELL ERROR: org.apache.hadoop.hbase.exceptions.OutOfOrderScannerNextException: Expected nextCallSeq: 1 But the nextCallSeq

Re: Scan got exception

How do you configure BucketCache ? Thanks On Mon, Jun 29, 2015 at 8:35 PM, Louis Hust louis.h...@gmail.com wrote: BTW, the hbase is hbase0.98.6 CHD5.2.0 2015-06-30 11:31 GMT+08:00 Louis Hust louis.h...@gmail.com: Hi, all When I scan a table using hbase shell, got the following