Re: Too many compactions, maybe keyspace system?

2016-01-17 Thread Shuo Chen
bastián > On Jan 16, 2016 4:43 AM, "DuyHai Doan" <doanduy...@gmail.com> wrote: > >> Interesting, maybe it worths filing a JIRA. Empty tables should not slow >> down compaction of other tables >> >> On Sat, Jan 16, 2016 at 10:33 AM, Shuo Chen <chenatu2...@gma

Re: Too many compactions, maybe keyspace system?

2016-01-16 Thread Shuo Chen
and restarted the high compaction node, It runs normally with normal mount of compactions. So maybe there are some bugs of compaction for empty columnfamily? On Wed, Jan 13, 2016 at 2:39 AM, Robert Coli <rc...@eventbrite.com> wrote: > On Mon, Jan 11, 2016 at 9:12 PM, Shuo Chen <chenatu2...@gmai

Re: Too many compactions, maybe keyspace system?

2016-01-11 Thread Shuo Chen
The attachment is result of grep -i GC /usr/local/cassandra/system.log > gc.log On Tue, Jan 12, 2016 at 1:12 PM, Shuo Chen <chenatu2...@gmail.com> wrote: > I have a assumption that, lots of pending compaction tasks jam the memory > and raise full gc. The full chokes the process

Re: Too many compactions, maybe keyspace system?

2016-01-11 Thread Shuo Chen
ached, tiny ones. > > The log doesn't look like much compaction is occurring? > > =Rob > > -- *陈硕* *Shuo Chen* chenatu2...@gmail.com chens...@whaty.com

Re: Too many compactions, maybe keyspace system?

2016-01-09 Thread Shuo Chen
1451977655608 3025 765 {4:23} Besides, there are also lots pending compaction tasks over 7000. On Sat, Jan 9, 2016 at 2:42 AM, Robert Coli <rc...@eventbrite.com> wrote: > > > On Thu, Jan 7, 2016 at 6:30 PM, Shuo Chen <chenatu2..

Too many compactions, maybe keyspace system?

2016-01-07 Thread Shuo Chen
related to the high compactions? -- *陈硕* *Shuo Chen* chenatu2...@gmail.com chens...@whaty.com

Re: cassandra full gc too often

2016-01-03 Thread Shuo Chen
-45b7aa88107c system hints 1451504236679 57519774 57367465 {2:3} 5e31ef40-aff4-11e5-a211-45b7aa88107c system hints 1451589979188 18970740 On Mon, Jan 4, 2016 at 9:54 AM, Shuo Chen <chenatu2...@gmail.com>

cassandra full gc too often

2015-12-31 Thread Shuo Chen
823 Tree Height: 1 After GC: Statistics for BinaryTreeDictionary: Total Free Space: 0 Max Chunk Size: 0 Number of Blocks: 0 Tree Height: 0 It seems related to objects of Futuretask. -- *陈硕* *Shuo Chen* chenatu2...@gmail.com chens...@whaty.com

Re: Would data be lost by nodetool removenode force

2015-12-17 Thread Shuo Chen
hanging So how to resolve this situation, can we add another node? or using remove force to this newly added node? On Fri, Dec 18, 2015 at 9:09 AM, Robert Coli <rc...@eventbrite.com> wrote: > On Thu, Dec 17, 2015 at 4:44 PM, Shuo Chen <chenatu2...@gmail.com> wrote: > >>

Would data be lost by nodetool removenode force

2015-12-17 Thread Shuo Chen
]. Is it safe to use removenode force to remove this newly added node? Will any data be lost? Thanks! -- *陈硕* *Shuo Chen* chenatu2...@gmail.com chens...@whaty.com

Re: too many full gc in one node of the cluster

2015-11-13 Thread Shuo Chen
10:35 PM, Shuo Chen <chenatu2...@gmail.com> wrote: > >> We have a small cassandra cluster with 4 nodes for production. All the >> nodes have similar hardware configuration and similar data load. The C* >> version is 1.0.7 (prretty old) >> >> One of the nod

too many full gc in one node of the cluster

2015-11-12 Thread Shuo Chen
n/a 0 INFO [ScheduledTasks:1] 2015-11-13 14:22:33,436 StatusLogger.java (line 81) MessagingServicen/a 0,67 -- *陈硕* *Shuo Chen* chenatu2...@gmail.com chens...@whaty.com

confusion about nodetool cfstats

2015-09-10 Thread Shuo Chen
Hi! I want to monitor columnfamily space used with nodetool cfstats. The document says, Space used (live), bytes:9592399Space that is measured depends on operating system

Re: confusion about nodetool cfstats

2015-09-10 Thread Shuo Chen
, is there a method to retrieve load info on the whole cluster? Shuo Chen On Fri, Sep 11, 2015 at 10:36 AM, Shuo Chen <chenatu2...@gmail.com> wrote: > Hi! > > I want to monitor columnfamily space used with nodetool cfstats. The > document says, > Space used (live

IP settings across data centers

2015-08-11 Thread Shuo Chen
communication? If so, how to configure the cassandra? If not, where can I modify the cassandra sources to enable it? Shuo Chen

Retrieve all the columnfamily / tables of thrift and CQL from the keyspace in cassandra

2015-08-04 Thread Shuo Chen
/retrieve-all-the-columnfamily-tables-of-thrift-and-cql-from-the-keyspace-in-ca Shuo Chen