Grokbase Groups HBase dev March 2011
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80 discussions - 281 posts

  • Hi, How should I retrieve HRegion's in AssignmentManager ? I see HRegion.getRegionInfo() but there is no counterpart. Thanks
    Ted YuTed Yu
    Mar 14, 2011 at 8:38 pm
    Mar 15, 2011 at 3:37 am
  • So, I'm debugging something else but thread dumping I see a bunch of this: "IPC Server handler 6 on 61020" daemon prio=10 tid=0x00000000422d2800 nid=0x7714 runnable [0x00007f1c5acea000] ...
    StackStack
    Mar 1, 2011 at 7:51 pm
    Mar 1, 2011 at 10:52 pm
  • how do you think about moving meta table to ZK, so no meta table are needed. if we do so, we need enhance ZK in the following way: 1. let children of ZNode in order. if we do so, we can benifit: 1. ...
    Jiangwen wJiangwen w
    Mar 18, 2011 at 4:27 am
    Mar 21, 2011 at 2:25 pm
  • Renaming the subject to better reflect the nature of further discussion. There're two considerations for my current implementation attached to HBASE-1512. 1. User shouldn't modify HbaseObjectWritable ...
    Ted YuTed Yu
    Mar 31, 2011 at 6:38 pm
    Apr 1, 2011 at 5:43 pm
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1788/changes Changes: [stack] HBASE-3600 Update our jruby to 1.6.0 [stack] HBASE-3600 Update our jruby to 1.6.0 [rawson] HBASE-3613 NPE in ...
    Apache Hudson ServerApache Hudson Server
    Mar 16, 2011 at 3:31 pm
    Mar 17, 2011 at 3:25 pm
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1759/changes Changes: [stack] HBASE-3559 Move report of split to master OFF the heartbeat channel -- forgot to add file ...
    Apache Hudson ServerApache Hudson Server
    Mar 1, 2011 at 7:13 am
    Mar 2, 2011 at 11:07 pm
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1819/changes Changes: [todd] HBASE-3711 - amend patch to fix compilation error [todd] HBASE-3711 importtsv fails if rowkey length exceeds ...
    Apache Hudson ServerApache Hudson Server
    Mar 29, 2011 at 11:21 pm
    Apr 2, 2011 at 1:18 am
  • Dear HBase developers, Last Monday, several HBase contributors met up at the StumbleUpon offices for a bit of a hackathon. We spent the beginning of the day discussing a few general topics, and then ...
    Todd LipconTodd Lipcon
    Mar 26, 2011 at 5:54 am
    Mar 26, 2011 at 10:59 pm
  • It looks like hbase-2001 added some overlap between the Server and RegionServerServices Interfaces. Here's the commit that added it: commit c1dd72441d376e62615a0ec92f09515521ccb99b Author: Andrew ...
    StackStack
    Mar 24, 2011 at 3:44 am
    Mar 24, 2011 at 6:15 am
  • I try to compile hbase in windows, got some problems, can someone help to find out what’s the problem? 1.in windows entironment,I try to compile the hbase (pom.xml) by the Maven's command line[mvn ...
    ZhoushuaifengZhoushuaifeng
    Mar 21, 2011 at 8:54 am
    Mar 23, 2011 at 6:36 am
  • I am thinking of distinguishing read and write request count, on top of HBASE-3507. For load balancer, the action for balancing read vs. write load should be different. For read load, region movement ...
    Ted YuTed Yu
    Mar 15, 2011 at 2:05 pm
    Mar 15, 2011 at 5:13 pm
  • The first hbase 0.90.2 release candidate is available for download: http://people.apache.org/~stack/hbase-0.90.2-candidate-0/ Its also available in Apache's Maven Staging Repository [1] About 60 ...
    StackStack
    Mar 27, 2011 at 10:52 pm
    Apr 8, 2011 at 3:56 am
  • Hi, The TimestampFilter docs read: * Note: Use of this filter overrides any time range/time stamp * options specified using {@link org.apache.hadoop.hbase.client.Get#setTimeRange(long, long)}, * ...
    Lars GeorgeLars George
    Mar 28, 2011 at 8:02 pm
    Mar 30, 2011 at 6:43 am
  • I think a row lock should be obtained before getting a row. but the following method in HRegion class show a row lock won't be obtained *public Result get(final Get get, final Integer lockid)* * * ...
    Jiangwen wJiangwen w
    Mar 28, 2011 at 5:42 am
    Mar 28, 2011 at 6:57 am
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1810/changes Changes: [jdcryans] HBASE-3681 Check the sloppiness of the region load before balancing (Ted Yu via JD) [jdcryans] And adding the ...
    Apache Hudson ServerApache Hudson Server
    Mar 25, 2011 at 5:48 am
    Mar 25, 2011 at 11:28 pm
  • Hey my fellow hadoop/hbase developers, I just came across this google compression/decompression package yesterday, could we make a good use of this compression scheme in hadoop? It's written in C++ ...
    Weishung ChungWeishung Chung
    Mar 23, 2011 at 7:43 pm
    Mar 24, 2011 at 7:49 pm
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1799/changes Changes: [stack] HBASE-3052 Add ability to have multiple ZK servers in a quorum in MiniZooKeeperCluster for test writing -- BACKED ...
    Apache Hudson ServerApache Hudson Server
    Mar 22, 2011 at 1:48 am
    Mar 23, 2011 at 1:48 am
  • Can we add a counter for the number of InternalScanner's to HRegion ? We decrement this counter when close() is called. Such counter can be used to gauge the cost of moving the underlying region. ...
    Ted YuTed Yu
    Mar 21, 2011 at 10:44 pm
    Mar 21, 2011 at 11:36 pm
  • Hi, See email thread 'One of the regionserver aborted, then the master shut down itself' for background. I am evaluating various ways of trimming the memory footprint of RegionLoad because there ...
    Ted YuTed Yu
    Mar 17, 2011 at 9:32 pm
    Mar 17, 2011 at 9:53 pm
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1782/changes Changes: [stack] HBASE-3538 Column families allow to have slashes in name [stack] HBASE-3626 Update instructions in thrift demo ...
    Apache Hudson ServerApache Hudson Server
    Mar 12, 2011 at 6:26 pm
    Mar 15, 2011 at 5:37 am
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1777/changes Changes: [stack] Added section on keeping row and column names small to schema section ------------------------------------------ ...
    Apache Hudson ServerApache Hudson Server
    Mar 10, 2011 at 10:53 pm
    Mar 11, 2011 at 4:22 pm
  • Hi, When I experimented with HBASE-1512, I got the following from HbaseObjectWritable: java.lang.UnsupportedOperationException: No code for unexpected class ...
    Ted YuTed Yu
    Mar 31, 2011 at 4:53 pm
    Mar 31, 2011 at 6:24 pm
  • Hi, Background: I was looking at references to this method in HTable: public HTable(final String tableName) There was only one, by LoadIncrementalHFiles. Actually my coworker stumbled on the above ...
    Ted YuTed Yu
    Mar 30, 2011 at 4:09 pm
    Mar 30, 2011 at 4:44 pm
  • Dear fellow HBase developers, Could someone educate me and let me know how to figure out the number of disk seeks involved in a range search (startRow to endRow specified in Scan). Also, could anyone ...
    Weishung ChungWeishung Chung
    Mar 26, 2011 at 3:57 pm
    Mar 28, 2011 at 5:01 pm
  • Hi, In our QA environment, we use hbase 0.90.1 I see the following in zookeeper log: 2011-03-24 05:43:36,002 INFO org.apache.zookeeper.server.ZooKeeperServer: Expiring session 0x12ee75190d70078, ...
    Ted YuTed Yu
    Mar 24, 2011 at 5:31 pm
    Mar 24, 2011 at 6:02 pm
  • Hi, I plan to utilize region server load for better balancing. Currently the following method only calls serverManager.regionServerReport(): public HMsg [] regionServerReport(HServerInfo serverInfo, ...
    Ted YuTed Yu
    Mar 19, 2011 at 5:51 pm
    Mar 19, 2011 at 10:34 pm
  • Hi, Please refer to 'One of the regionserver aborted, then the master shut down itself' on user list for background. I looked at calls to this method: public void assignUserRegions(List<HRegionInfo ...
    Ted YuTed Yu
    Mar 16, 2011 at 4:33 pm
    Mar 16, 2011 at 6:36 pm
  • I was getting all of the apache mailing lists blocked from getting LinkedIn invitations. Tech support tells me that dev@hbase.apache.org is already linked to an existing account. Did somebody do that ...
    Ted DunningTed Dunning
    Mar 11, 2011 at 6:00 pm
    Mar 11, 2011 at 7:09 pm
  • Hi, I am still confused what libs we need for clients. I keep seeing Guava and I am not sure where this is used. I tried some (given, simple) examples and cannot see where it is required as they all ...
    Lars GeorgeLars George
    Mar 3, 2011 at 4:06 pm
    Mar 3, 2011 at 5:46 pm
  • Hi everybody, I am a beginner using Hbase for testings, I already managed to implement Pseudo distributed conf with Hadoop 0.20 + Hbase 0.26 on my machine, as well as distributed one with virtual ...
    JeromeJerome
    Mar 30, 2011 at 8:35 pm
    Apr 9, 2011 at 8:39 am
  • The tip of 0.90.x has some pretty important fixes added since 0.90.1 Lets push out 0.90.2. I'd like to do that tomorrow or Monday. All the criticals and blockers should be done by then. If objection ...
    StackStack
    Mar 24, 2011 at 7:27 pm
    Mar 24, 2011 at 9:06 pm
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1804/changes Changes: [apurtell] HBASE-3468 Enhance checkAndPut and checkAndDelete with comparators ------------------------------------------ ...
    Apache Hudson ServerApache Hudson Server
    Mar 24, 2011 at 12:18 am
    Mar 24, 2011 at 3:27 pm
  • See below. Doing some testing on that I let the mapreduce program and an hbase shell flushing every 60 seconds run overnight. The result on two tables was: 562 store files! ...
    Andrew PurtellAndrew Purtell
    Mar 19, 2011 at 6:15 pm
    Mar 22, 2011 at 12:39 am
  • See <https://hudson.apache.org/hudson/job/hbase-0.90/124/changes Changes: [stack] HBASE-3671 Split report before we finish parent region open; workaround till 0.92; Race between split and OPENED ...
    Apache Hudson ServerApache Hudson Server
    Mar 20, 2011 at 12:34 am
    Mar 22, 2011 at 12:06 am
  • Hi, I have a question about TestRegionRebalancing.assertRegionsAreBalanced() I see hardcoded slop of 0.1 In 0.90 and beyond, sloppiness is gone. Therefore: // TODO: Fix this test. Old balancer used ...
    Ted YuTed Yu
    Mar 19, 2011 at 9:52 pm
    Mar 20, 2011 at 4:44 am
  • Hi, What's the equivalent for the following in hbase 0.90.x and beyond ? http://hbase.apache.org/docs/r0.20.5/api/org/apache/hadoop/hbase/stargate/package-summary.html I don't find the module in ...
    Ted YuTed Yu
    Mar 17, 2011 at 11:34 pm
    Mar 18, 2011 at 1:34 am
  • In building a Coprocessor test case, I noticed that TestRegionObserverInterface.initHRegion isn't called within the containing class.
    Jason RutherglenJason Rutherglen
    Mar 14, 2011 at 1:57 pm
    Mar 14, 2011 at 3:25 pm
  • I read the SplitTransaction and flush code, but still don't understand the procedure of this question, can someone tell me? Zhou Shuaifeng(Frank) ...
    Zhou ShuaifengZhou Shuaifeng
    Mar 14, 2011 at 8:56 am
    Mar 14, 2011 at 9:18 am
  • See <https://hudson.apache.org/hudson/job/hbase-0.90/105/changes Changes: [stack] HBASE-3586 Improve the selection of regions to balance [rawson] HBASE-3608 MemstoreFlusher error message doesnt ...
    Apache Hudson ServerApache Hudson Server
    Mar 8, 2011 at 1:01 am
    Mar 8, 2011 at 11:58 pm
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1768/changes Changes: [stack] Fix client dependencies (Lars George via Stack) ------------------------------------------ [...truncated 2978 ...
    Apache Hudson ServerApache Hudson Server
    Mar 4, 2011 at 5:36 pm
    Mar 5, 2011 at 3:35 pm
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1765/changes Changes: [rawson] HBASE-3514 more Integer.MAX_VALUE for blocksize ------------------------------------------ [...truncated 2981 ...
    Apache Hudson ServerApache Hudson Server
    Mar 3, 2011 at 4:29 am
    Mar 4, 2011 at 3:26 am
  • Hi, In hbase 0.90.x, is there limit on the number of concurrent scanners for one region server ? We think that openning many scanners might result in scanner timeout. Thanks
    Ted YuTed Yu
    Mar 31, 2011 at 5:56 pm
    Apr 1, 2011 at 12:30 am
  • Seeking more comment. ---------- Forwarded message ---------- From: Patrick Hunt <phunt@apache.org Date: Thu, Mar 24, 2011 at 4:15 PM Subject: Re: negotiated timeout To: Ted Yu <yuzhihong@gmail.com ...
    Ted YuTed Yu
    Mar 25, 2011 at 12:28 am
    Mar 25, 2011 at 3:48 am
  • Hey. Are we still using ReviewBoard for Hbase? I put up a patch for hbck, but the auto-generated email from ReviewBoard was blocked as spam. Re: ...
    Marc LimotteMarc Limotte
    Mar 24, 2011 at 12:42 am
    Mar 24, 2011 at 4:40 pm
  • See <https://hudson.apache.org/hudson/job/hbase-0.90/129/ ------------------------------------------ [...truncated 202 lines...] A src/test/java/org/apache/hadoop/hbase/util/TestMergeTable.java A ...
    Apache Hudson ServerApache Hudson Server
    Mar 23, 2011 at 5:00 am
    Mar 23, 2011 at 5:33 am
  • I have a mapreduce task put together for experimentation which does a lot of Increments over three tables and Puts to another. I set writeToWAL to false. My HBase includes the patch that fixes ...
    Andrew PurtellAndrew Purtell
    Mar 19, 2011 at 6:11 pm
    Mar 21, 2011 at 8:56 pm
  • Hi, I put trunk snapshot on dev cluster. I observed the following where -ROOT- couldn't get online: http://pastebin.com/pGVuLtT3 zookeeper log had the following: 2011-03-18 18:26:44,848 INFO ...
    Ted YuTed Yu
    Mar 18, 2011 at 6:35 pm
    Mar 18, 2011 at 7:34 pm
  • See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1793/changes Changes: [nspiegelberg] add HBASE-3665 to CHANGES.txt [nspiegelberg] HBASE-3665 tighten assertions for testBloomFilterSize ...
    Apache Hudson ServerApache Hudson Server
    Mar 17, 2011 at 11:02 pm
    Mar 18, 2011 at 1:28 am
  • See <https://hudson.apache.org/hudson/job/hbase-0.90/120/changes Changes: [todd] Some cleanup to CHANGES.txt ------------------------------------------ [...truncated 2808 lines...] Tests run: 1, ...
    Apache Hudson ServerApache Hudson Server
    Mar 17, 2011 at 3:25 pm
    Mar 17, 2011 at 11:51 pm
  • Hi, I didn't find any reference to the following method in trunk: static public ARegionLoad hrlToARL(HServerLoad.RegionLoad rl) throws IOException { Out of curiosity, can someone tell me who/how the ...
    Ted YuTed Yu
    Mar 17, 2011 at 9:21 pm
    Mar 17, 2011 at 11:22 pm
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36 users for March 2011

Apache Hudson Server: 83 posts Ted Yu: 43 posts Stack: 37 posts Ryan Rawson: 15 posts Andrew Purtell: 11 posts Jean-Daniel Cryans: 9 posts Lars George: 9 posts Todd Lipcon: 9 posts Gary Helmling: 8 posts Jiangwen w: 6 posts Ted Dunning: 6 posts Zhou Shuaifeng: 6 posts Suraj Varma: 5 posts Jonathan Gray: 4 posts Weishung Chung: 4 posts Tsuna: 3 posts Dhruba Borthakur: 2 posts Jason Rutherglen: 2 posts Mathias Herberts: 2 posts Harry_ding: 1 post
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