Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id BAAE3FC5A for ; Thu, 21 Mar 2013 16:48:39 +0000 (UTC) Received: (qmail 2426 invoked by uid 500); 21 Mar 2013 16:48:37 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 2391 invoked by uid 500); 21 Mar 2013 16:48:37 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 2381 invoked by uid 99); 21 Mar 2013 16:48:37 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 21 Mar 2013 16:48:37 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: local policy) Received: from [208.113.200.5] (HELO homiemail-a56.g.dreamhost.com) (208.113.200.5) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 21 Mar 2013 16:48:32 +0000 Received: from homiemail-a56.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a56.g.dreamhost.com (Postfix) with ESMTP id 181E8FE06C for ; Thu, 21 Mar 2013 09:48:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=thelastpickle.com; h=from :content-type:message-id:mime-version:subject:date:references:to :in-reply-to; s=thelastpickle.com; bh=lRvvm6MPTsHudNU8EGZofStgWs U=; b=3lo8QBvjI/CNhC4r5ZfQHVvrdq2njpFPQ/2RZuQKG1tdCF2OXGfQqK5+WP jWropl5DgvUWwbfw516ictFQrFJuDtVmBA4HPLSsUKBMVjVKcKlym8utFURxidIL Ybn0dwXpdmJSTQz3ToqpmrIn39EbD88oNbJCJA+HeNgVtgW9I= Received: from [172.16.1.8] (unknown [203.86.207.101]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: aaron@thelastpickle.com) by homiemail-a56.g.dreamhost.com (Postfix) with ESMTPSA id 06127FE069 for ; Thu, 21 Mar 2013 09:48:09 -0700 (PDT) From: aaron morton Content-Type: multipart/alternative; boundary="Apple-Mail=_318C45B3-71A6-438B-84CC-33433A1CF2DA" Message-Id: Mime-Version: 1.0 (Mac OS X Mail 6.2 \(1499\)) Subject: Re: Continuing high CPU usage (98%) after cassandra1.2.0 startup. Date: Fri, 22 Mar 2013 05:48:08 +1300 References: <51492E5D.4090406@yunrang.com> <51498899.3010603@yunrang.com> To: user@cassandra.apache.org In-Reply-To: <51498899.3010603@yunrang.com> X-Mailer: Apple Mail (2.1499) X-Virus-Checked: Checked by ClamAV on apache.org --Apple-Mail=_318C45B3-71A6-438B-84CC-33433A1CF2DA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 You'll need to explain a bit about how you use cassandra. Is compaction running ? Check with nodetool compactionstats. Are you doing very large reads? Larger than = thrift_framed_transport_size_in_mb ?=20 cheers ----------------- Aaron Morton Freelance Cassandra Consultant New Zealand @aaronmorton http://www.thelastpickle.com On 20/03/2013, at 10:59 PM, =E6=9D=A8=E8=BE=89=E5=BC=BA = wrote: > On 03/20/2013 11:34 AM, =E6=9D=A8=E8=BE=89=E5=BC=BA wrote: >> Hi, >> Every time I restart the cassandra server, the cpu usage continue = to be very high(98%) for days. But I have no reading or writing to this = server. >> I have tried the follow cmd: >>=20 >> date; date `date +"%m%d%H%M%C%y.%S"`; date; >>=20 >> It doesn't work. >>=20 >> The tail of system.log: >> DEBUG [Thrift:1701] 2013-03-20 00:01:14,229 = CustomTThreadPoolServer.java (line 209) Thrift transport error occurred = during processing of message. >> org.apache.thrift.transport.TTransportException: = java.net.SocketException: Broken pipe >> at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:161) >> at = org.apache.thrift.transport.TFramedTransport.flush(TFramedTransport.java:1= 58) >> at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:36) >> at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:34) >> at = org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(Cust= omTThreadPoolServer.java:199) >> at = java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.= java:886) >> at = java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java= :908) >> at java.lang.Thread.run(Thread.java:662) >> Caused by: java.net.SocketException: Broken pipe >> at java.net.SocketOutputStream.socketWrite0(Native Method) >> at = java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) >> at java.net.SocketOutputStream.write(SocketOutputStream.java:136) >> at = java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65) >> at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123) >> at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:159) >> ... 7 more >> DEBUG [Thrift:2212] 2013-03-20 00:01:14,217 CassandraServer.java = (line 341) multiget_slice >> DEBUG [Thrift:2380] 2013-03-20 00:01:14,212 = CustomTThreadPoolServer.java (line 209) Thrift transport error occurred = during processing of message. >> org.apache.thrift.transport.TTransportException: = java.net.SocketException: Broken pipe >> at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:161) >> at = org.apache.thrift.transport.TFramedTransport.flush(TFramedTransport.java:1= 58) >> at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:36) >> at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:34) >> at = org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(Cust= omTThreadPoolServer.java:199) >> at = java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.= java:886) >> at = java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java= :908) >> at java.lang.Thread.run(Thread.java:662) >> Caused by: java.net.SocketException: Broken pipe >> at java.net.SocketOutputStream.socketWrite0(Native Method) >> at = java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) >> at java.net.SocketOutputStream.write(SocketOutputStream.java:136) >> at = java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65) >> at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123) >> at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:159) >> ... 7 more >> DEBUG [Thrift:2379] 2013-03-20 00:01:14,207 = CustomTThreadPoolServer.java (line 209) Thrift transport error occurred = during processing of message. >> org.apache.thrift.transport.TTransportException: = java.net.SocketException: Broken pipe >> at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:161) >> at = org.apache.thrift.transport.TFramedTransport.flush(TFramedTransport.java:1= 58) >> at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:36) >> at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:34) >> at = org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(Cust= omTThreadPoolServer.java:199) >> at = java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.= java:886) >> at = java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java= :908) >> at java.lang.Thread.run(Thread.java:662) >> Caused by: java.net.SocketException: Broken pipe >> at java.net.SocketOutputStream.socketWrite0(Native Method) >> at = java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) >> at java.net.SocketOutputStream.write(SocketOutputStream.java:136) >> at = java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65) >> at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123) >> at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:159) >> ... 7 more >>=20 >>=20 >> If you known anything about it, please help me. >>=20 >>=20 >> Thanks, >>=20 >> China. >>=20 > My log continues printing something like this: > DEBUG [CompactionExecutor:38] 2013-03-20 17:54:35,786 = IntervalTree.java (line 227) Creating IntervalNode from = [[DecoratedKey(9524159dcd3c09dd, 39353234313539646364336330396464), = DecoratedKey(9526c6c7609e8afc, = 39353236633663373630396538616663)](SSTableReader(path=3D'/mnt/storage0/cas= sandra/WebSearch/WebDepotCF/WebSearch-WebDepotCF-ia-564096-Data.db')), = [DecoratedKey(9526ca7e21f4ff60, 39353236636137653231663466663630), = DecoratedKey(95299a45637d63ef, = 39353239396134353633376436336566)](SSTableReader(path=3D'/mnt/storage2/cas= sandra/WebSearch/WebDepotCF/WebSearch-WebDepotCF-ia-564097-Data.db'))] > DEBUG [ReadStage:49] 2013-03-20 17:54:35,784 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288 > DEBUG [ReadStage:12] 2013-03-20 17:54:35,784 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 290 > DEBUG [ReadStage:15] 2013-03-20 17:54:35,782 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 290 > DEBUG [ReadStage:60] 2013-03-20 17:54:35,780 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288 > DEBUG [ReadStage:57] 2013-03-20 17:54:35,779 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 287 > DEBUG [ReadStage:45] 2013-03-20 17:54:35,778 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 290 > DEBUG [ReadStage:9] 2013-03-20 17:54:35,775 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288 > INFO [ScheduledTasks:1] 2013-03-20 17:54:35,774 StatusLogger.java = (line 85) MessagingService n/a 0,0 > DEBUG [ReadStage:38] 2013-03-20 17:54:35,774 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288 > DEBUG [ReadStage:55] 2013-03-20 17:54:35,773 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 290 > DEBUG [ReadStage:18] 2013-03-20 17:54:35,771 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288 > DEBUG [ReadStage:32] 2013-03-20 17:54:35,771 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 287 > DEBUG [ReadStage:58] 2013-03-20 17:54:35,771 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288 > DEBUG [ReadStage:46] 2013-03-20 17:54:35,770 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 250 > DEBUG [ReadStage:2] 2013-03-20 17:54:35,768 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 290 > DEBUG [ReadStage:26] 2013-03-20 17:54:35,767 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 287 > DEBUG [CompactionExecutor:36] 2013-03-20 17:54:35,767 = IntervalTree.java (line 227) Creating IntervalNode from = [[DecoratedKey(9258cd03a3d015cc, 39323538636430336133643031356363), = DecoratedKey(925b171b046cac97, = 39323562313731623034366361633937)](SSTableReader(path=3D'/mnt/storage0/cas= sandra/WebSearch/WebDepotCF/WebSearch-WebDepotCF-ia-677405-Data.db'))] > DEBUG [ReadStage:67] 2013-03-20 17:54:35,767 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288 > DEBUG [ReadStage:20] 2013-03-20 17:54:35,765 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 250 > DEBUG [ReadStage:36] 2013-03-20 17:54:35,763 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288 > DEBUG [ReadStage:65] 2013-03-20 17:54:35,762 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 287 > DEBUG [ReadStage:16] 2013-03-20 17:54:35,758 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 287 > DEBUG [ReadStage:5] 2013-03-20 17:54:35,758 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 290 > DEBUG [ReadStage:63] 2013-03-20 17:54:35,757 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 290 > DEBUG [ReadStage:27] 2013-03-20 17:54:35,757 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288 > ...... >=20 > And the cpu usage is still very high. Is it a bug of cassandra? --Apple-Mail=_318C45B3-71A6-438B-84CC-33433A1CF2DA Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
http://www.thelastpickle.com

On 20/03/2013, at 10:59 PM, =E6=9D=A8=E8=BE=89=E5=BC=BA = <huiqiangyang@yunrang.com> = wrote:

On 03/20/2013 11:34 AM, =E6=9D=A8=E8=BE=89=E5=BC=BA = wrote:
Hi,
  Every time I = restart the cassandra server, the cpu usage continue to be very = high(98%) for days. But I have no reading or writing to this = server.
I have tried the follow cmd:

date; date `date = +"%m%d%H%M%C%y.%S"`; date;

It doesn't work.

The tail of = system.log:
DEBUG [Thrift:1701] 2013-03-20 00:01:14,229 = CustomTThreadPoolServer.java (line 209) Thrift transport error occurred = during processing of = message.
org.apache.thrift.transport.TTransportException: = java.net.SocketException: Broken pipe
at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:161)
at = org.apache.thrift.transport.TFramedTransport.flush(TFramedTransport.java:1= 58)
at = org.apache.thrift.ProcessFunction.process(ProcessFunction.java:36)
at = org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:34)
at = org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(Cust= omTThreadPoolServer.java:199)
at = java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.= java:886)
at = java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java= :908)
at java.lang.Thread.run(Thread.java:662)
Caused by: = java.net.SocketException: Broken pipe
at = java.net.SocketOutputStream.socketWrite0(Native Method)
at = java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at = java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at = java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
= at = java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:159)
... 7 more
DEBUG [Thrift:2212] 2013-03-20 00:01:14,217 = CassandraServer.java (line 341) multiget_slice
DEBUG [Thrift:2380] = 2013-03-20 00:01:14,212 CustomTThreadPoolServer.java (line 209) Thrift = transport error occurred during processing of = message.
org.apache.thrift.transport.TTransportException: = java.net.SocketException: Broken pipe
at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:161)
at = org.apache.thrift.transport.TFramedTransport.flush(TFramedTransport.java:1= 58)
at = org.apache.thrift.ProcessFunction.process(ProcessFunction.java:36)
at = org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:34)
at = org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(Cust= omTThreadPoolServer.java:199)
at = java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.= java:886)
at = java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java= :908)
at java.lang.Thread.run(Thread.java:662)
Caused by: = java.net.SocketException: Broken pipe
at = java.net.SocketOutputStream.socketWrite0(Native Method)
at = java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at = java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at = java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
= at = java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:159)
... 7 more
DEBUG [Thrift:2379] 2013-03-20 00:01:14,207 = CustomTThreadPoolServer.java (line 209) Thrift transport error occurred = during processing of = message.
org.apache.thrift.transport.TTransportException: = java.net.SocketException: Broken pipe
at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:161)
at = org.apache.thrift.transport.TFramedTransport.flush(TFramedTransport.java:1= 58)
at = org.apache.thrift.ProcessFunction.process(ProcessFunction.java:36)
at = org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:34)
at = org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(Cust= omTThreadPoolServer.java:199)
at = java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.= java:886)
at = java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java= :908)
at java.lang.Thread.run(Thread.java:662)
Caused by: = java.net.SocketException: Broken pipe
at = java.net.SocketOutputStream.socketWrite0(Native Method)
at = java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at = java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at = java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
= at = java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at = org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.ja= va:159)
... 7 more


If you known anything about it, please = help me.


Thanks,

China.

My log = continues printing something like this:
DEBUG [CompactionExecutor:38] = 2013-03-20 17:54:35,786 IntervalTree.java (line 227) Creating = IntervalNode from [[DecoratedKey(9524159dcd3c09dd, = 39353234313539646364336330396464), DecoratedKey(9526c6c7609e8afc, = 39353236633663373630396538616663)](SSTableReader(path=3D'/mnt/storage0/cas= sandra/WebSearch/WebDepotCF/WebSearch-WebDepotCF-ia-564096-Data.db')), = [DecoratedKey(9526ca7e21f4ff60, 39353236636137653231663466663630), = DecoratedKey(95299a45637d63ef, = 39353239396134353633376436336566)](SSTableReader(path=3D'/mnt/storage2/cas= sandra/WebSearch/WebDepotCF/WebSearch-WebDepotCF-ia-564097-Data.db'))]
= DEBUG [ReadStage:49] 2013-03-20 17:54:35,784 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288
DEBUG [ReadStage:12] = 2013-03-20 17:54:35,784 SSTableReader.java (line 735) Bloom filter = allows skipping sstable 290
DEBUG [ReadStage:15] 2013-03-20 = 17:54:35,782 SSTableReader.java (line 735) Bloom filter allows skipping = sstable 290
DEBUG [ReadStage:60] 2013-03-20 17:54:35,780 = SSTableReader.java (line 735) Bloom filter allows skipping sstable = 288
DEBUG [ReadStage:57] 2013-03-20 17:54:35,779 SSTableReader.java = (line 735) Bloom filter allows skipping sstable 287
DEBUG = [ReadStage:45] 2013-03-20 17:54:35,778 SSTableReader.java (line 735) = Bloom filter allows skipping sstable 290
DEBUG [ReadStage:9] = 2013-03-20 17:54:35,775 SSTableReader.java (line 735) Bloom filter = allows skipping sstable 288
INFO [ScheduledTasks:1] 2013-03-20 = 17:54:35,774 StatusLogger.java (line 85) MessagingService =             &n= bsp;  n/a       0,0
DEBUG = [ReadStage:38] 2013-03-20 17:54:35,774 SSTableReader.java (line 735) = Bloom filter allows skipping sstable 288
DEBUG [ReadStage:55] = 2013-03-20 17:54:35,773 SSTableReader.java (line 735) Bloom filter = allows skipping sstable 290
DEBUG [ReadStage:18] 2013-03-20 = 17:54:35,771 SSTableReader.java (line 735) Bloom filter allows skipping = sstable 288
DEBUG [ReadStage:32] 2013-03-20 17:54:35,771 = SSTableReader.java (line 735) Bloom filter allows skipping sstable = 287
DEBUG [ReadStage:58] 2013-03-20 17:54:35,771 SSTableReader.java = (line 735) Bloom filter allows skipping sstable 288
DEBUG = [ReadStage:46] 2013-03-20 17:54:35,770 SSTableReader.java (line 735) = Bloom filter allows skipping sstable 250
DEBUG [ReadStage:2] = 2013-03-20 17:54:35,768 SSTableReader.java (line 735) Bloom filter = allows skipping sstable 290
DEBUG [ReadStage:26] 2013-03-20 = 17:54:35,767 SSTableReader.java (line 735) Bloom filter allows skipping = sstable 287
DEBUG [CompactionExecutor:36] 2013-03-20 17:54:35,767 = IntervalTree.java (line 227) Creating IntervalNode from = [[DecoratedKey(9258cd03a3d015cc, 39323538636430336133643031356363), = DecoratedKey(925b171b046cac97, = 39323562313731623034366361633937)](SSTableReader(path=3D'/mnt/storage0/cas= sandra/WebSearch/WebDepotCF/WebSearch-WebDepotCF-ia-677405-Data.db'))]
= DEBUG [ReadStage:67] 2013-03-20 17:54:35,767 SSTableReader.java (line = 735) Bloom filter allows skipping sstable 288
DEBUG [ReadStage:20] = 2013-03-20 17:54:35,765 SSTableReader.java (line 735) Bloom filter = allows skipping sstable 250
DEBUG [ReadStage:36] 2013-03-20 = 17:54:35,763 SSTableReader.java (line 735) Bloom filter allows skipping = sstable 288
DEBUG [ReadStage:65] 2013-03-20 17:54:35,762 = SSTableReader.java (line 735) Bloom filter allows skipping sstable = 287
DEBUG [ReadStage:16] 2013-03-20 17:54:35,758 SSTableReader.java = (line 735) Bloom filter allows skipping sstable 287
DEBUG = [ReadStage:5] 2013-03-20 17:54:35,758 SSTableReader.java (line 735) = Bloom filter allows skipping sstable 290
DEBUG [ReadStage:63] = 2013-03-20 17:54:35,757 SSTableReader.java (line 735) Bloom filter = allows skipping sstable 290
DEBUG [ReadStage:27] 2013-03-20 = 17:54:35,757 SSTableReader.java (line 735) Bloom filter allows skipping = sstable 288
......

And the cpu usage is still very high. =  Is it a bug of = cassandra?

= --Apple-Mail=_318C45B3-71A6-438B-84CC-33433A1CF2DA--