Hello Everyone, Thanks very much for the input. Here is my System info. 1. I have single node cluster. (For testing) 2. I have 4GB Memory on the Server and trying to process 200B. ( 1GB is allocated to Tomcat7, 1 GB to Cassandra and 1 GB to ActiveMQ. Also nltk Server is running) 3. We are using 2.03 Driver (This is one I can change and try) 4. 64.4 GB HDD 5. Attached Memory and CPU information.
Regards Neha On Fri, Jan 23, 2015 at 6:50 AM, Steve Robenalt <sroben...@highwire.org> wrote: > I agree with Rob. You shouldn't need to change the read timeout. > > We had similar issues with intermittent ReadTimeoutExceptions for a while > when we ran Cassandra on underpowered nodes on AWS. We've also seen them > when executing unconstrained queries with very large ResultSets (because it > takes longer than the timeout to return results). If you can share more > details about the hardware environment you are running your cluster on, > there are many on the list who can tell you if they are underpowered or not > (CPUs, memory, and disk/storage config are all important factors). > > You might also try running a newer version of the Java Driver (the later > 2.0.x drivers should all work with Cassandra 2.0.3), and I would also > suggest moving to a newer (2.0.x) version of Cassandra if you have the > option to do so. We had to move to Cassandra 2.0.5 some time ago from 2.0.3 > for an issue unrelated to the read timeouts. > > Steve > > > On Thu, Jan 22, 2015 at 4:48 PM, Robert Coli <rc...@eventbrite.com> wrote: > >> On Thu, Jan 22, 2015 at 4:19 PM, Asit KAUSHIK <asitkaushikno...@gmail.com >> > wrote: >> >>> There are some values for read timeout in Cassandra.yaml file and the >>> default value is 30000 ms change to a bigger value and that resolved our >>> issue. >>> >> Having to increase this value is often a strong signal you are Doing It >> Wrong. FWIW! >> >> =Rob >> >> > >
cat /proc/meminfo MemTotal: 3838832 kB MemFree: 176128 kB Buffers: 172680 kB Cached: 829556 kB SwapCached: 8164 kB Active: 1327288 kB Inactive: 806532 kB Active(anon): 697764 kB Inactive(anon): 458364 kB Active(file): 629524 kB Inactive(file): 348168 kB Unevictable: 1396340 kB Mlocked: 1396340 kB SwapTotal: 4194300 kB SwapFree: 4033800 kB Dirty: 40 kB Writeback: 0 kB AnonPages: 2524080 kB Mapped: 38052 kB Shmem: 296 kB Slab: 83824 kB SReclaimable: 70124 kB SUnreclaim: 13700 kB KernelStack: 3008 kB PageTables: 11532 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 6113716 kB Committed_AS: 4239512 kB VmallocTotal: 34359738367 kB VmallocUsed: 8784 kB VmallocChunk: 34359711939 kB HardwareCorrupted: 0 kB AnonHugePages: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 3940352 kB DirectMap2M: 0 kB
cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 62 model name : Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz stepping : 4 microcode : 0x415 cpu MHz : 2500.060 cache size : 25600 KB physical id : 1 siblings : 1 core id : 1 cpu cores : 1 apicid : 35 initial apicid : 35 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de tsc msr pae cx8 apic sep cmov pat clflush mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 popcnt tsc_deadline_timer aes rdrand hypervisor lahf_lm ida arat epb pln pts dtherm fsgsbase erms bogomips : 5000.12 clflush size : 64 cache_alignment : 64 address sizes : 46 bits physical, 48 bits virtual power management:
