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[HBASE-2883] Req/sec in web UIs are way off when regions are moving - HBase - [issue]
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...Now that the region servers can heartbeat back to the master as soon as they have a message (region open, close, etc), they also recompute their metrics. I see two problems: The metrics are ...
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http://issues.apache.org/jira/browse/HBASE-2883
Author: Jean-Daniel Cryans,
2013-05-07, 23:48
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[HBASE-2317] NSRE in lockRow is thrown as an ERROR - HBase - [issue]
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...HRS.lockRow doesn't manage exceptions like all the other methods: try { HRegion region = getRegion(regionName); Integer r...
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http://issues.apache.org/jira/browse/HBASE-2317
Author: Jean-Daniel Cryans,
2013-05-07, 23:46
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[HBASE-2188] Group ICVs waiting on row lock - HBase - [issue]
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...In the same spirit as group commit down in HLog, incrementColumnValue should be grouping all requests waiting on the row lock into one in HRegion. This means that 10 clients waiting on the l...
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http://issues.apache.org/jira/browse/HBASE-2188
Author: Jean-Daniel Cryans,
2013-05-07, 23:45
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[HBASE-2056] Wiser configurations - HBase - [issue]
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...Some of our default configurations do badly on machines that are provided with more CPUs and RAM. For example:hbase.regionserver.global.memstore.upperLimit=0.4hbase.regionserver.global.memst...
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http://issues.apache.org/jira/browse/HBASE-2056
Author: Jean-Daniel Cryans,
2013-05-07, 23:41
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[HBASE-3669] Region in PENDING_OPEN keeps being bounced between RS and master - HBase - [issue]
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...After going crazy killing region servers after HBASE-3668, most of the cluster recovered except for 3 regions that kept being refused by the region servers.One the master I would see:2011-03...
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http://issues.apache.org/jira/browse/HBASE-3669
Author: Jean-Daniel Cryans,
2013-05-07, 23:40
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[HBASE-5174] Coalesce aborted tasks in the TaskMonitor - HBase - [issue]
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...Some tasks can get repeatedly canceled like flushing when splitting is going on, in the logs it looks like this:2012-01-10 19:28:29,164 INFO org.apache.hadoop.hbase.regionserver.MemStoreFlus...
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http://issues.apache.org/jira/browse/HBASE-5174
Author: Jean-Daniel Cryans,
2013-05-07, 23:36
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[HBASE-3816] Put the balancer switch in ZK - HBase - [issue]
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...Currently the balancer switch lives only in the master's memory. Yesterday we had one master that died (in a strange way) and the one we restarted started balancing again. It's only a test c...
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http://issues.apache.org/jira/browse/HBASE-3816
Author: Jean-Daniel Cryans,
2013-05-07, 23:35
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[HBASE-3021] Timestamp mismatch between WAL and MemStore for ICVs - HBase - [issue]
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...We've been running replication for a little while now and the tool I wrote to verify replicated data (will be posted in HBASE-3013) works great, unless that data is counters. The reason is t...
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http://issues.apache.org/jira/browse/HBASE-3021
Author: Jean-Daniel Cryans,
2013-05-07, 23:33
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[HBASE-3363] ReplicationSink should batch delete - HBase - [issue]
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...Now that it is possible to multi delete, it should be integrated in ReplicationSink....
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http://issues.apache.org/jira/browse/HBASE-3363
Author: Jean-Daniel Cryans,
2013-05-07, 23:33
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[HBASE-3009] ICV-style update of Memstore for single-qualifier and frequent puts - HBase - [issue]
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...We had an internal need for a method to update a single cell thousands of times per second without having a "versions explosion" problem, and found that the code can be somewhat easily modif...
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http://issues.apache.org/jira/browse/HBASE-3009
Author: Jean-Daniel Cryans,
2013-05-07, 23:31
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