Memory Backend TTL doesn't work
Hi~!
I'm checking riak to use as a cache like memcached.
But I found some strange situation.
I set ttl like this to expire data, but failed.
-
{riak_kv, [
...
{storage_backend, riak_kv_memory_backend},
{memory_backend, [
{max_memory, 8192},
{ttl, 1}
]},
...
]},
-
TTL isn't supported on riak_kv_memory_backend?
I changed riak_kv_memory_backend to riak_kv_bitcask_backend, that's fine.
Thanks.
Chan.
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Re: Memory Backend TTL doesn't work
Hi Chan,
Instead of:
{storage_backend, riak_kv_memory_backend},
{memory_backend, [
{max_memory, 8192},
{ttl, 1}
]},
Try:
{multi_backend_default, expiring_memory_backend},
{multi_backend, [
{expiring_memory_backend, riak_kv_memory_backend, [
{max_memory, 8192}, %% 8GB
{ttl, 1}
]}
]},
Also, for future reference, the max_memory field is in MB per vnode, so your
current setting is 8GB per vnode. Unless you have a ridiculous amount of RAM,
you might want to reduce that setting a bit :)
Thanks,
Alex
--
Alex Moore
Sent with Airmail
On October 14, 2013 at 7:32:03 AM, 성동찬_Chan (c...@kakao.com) wrote:
Hi~!
I'm checking riak to use as a cache like memcached.
But I found some strange situation.
I set ttl like this to expire data, but failed.
-
{riak_kv, [
...
{storage_backend, riak_kv_memory_backend},
{memory_backend, [
{max_memory, 8192},
{ttl, 1}
]},
...
]},
-
TTL isn't supported on riak_kv_memory_backend?
I changed riak_kv_memory_backend to riak_kv_bitcask_backend, that's fine.
Thanks.
Chan.
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Re: Connection attempt from disallowed node
Sohil - That's surprising since that's the standard reason for that error. I would recommend checking your vm.args files using diff or a hex editor to ensure they are identical. You can then use riak attach to attach to your nodes and retrieve the cookie value using this statement: erlang:get_cookie(). -- Luke Bakken CSE lbak...@basho.com On Fri, Oct 11, 2013 at 7:42 PM, raghwani sohil sohil4...@gmail.com wrote: Hi Luke , It's same on all nodes. I didn't change *-cookie *parameter in vm.args file , Thanks, Sohil On Fri, Oct 11, 2013 at 8:44 PM, Luke Bakken lbak...@basho.com wrote: Hello Sohil, Could you please check the `vm.args' file on your existing node and your new node to ensure that the `-cookie' parameter is the same on each? -- Luke Bakken CSE lbak...@basho.com On Fri, Oct 11, 2013 at 7:02 AM, raghwani sohil sohil4...@gmail.comwrote: Hi , I have three node riak(0.14.2) cluster on production(all nodes running on RHEL OS). I have one CentOS system on which one riak node(0.14.2) is setup using RHEL binary. When I m trying add CentOS riak node to existing cluster then I am getting error *Node r...@a.b.c.xxx is not reachable! *and in sasl-error.log file it's showing *Connection attempt from disallowed node 'riak@**a.d.c.YYY**'* * * can any one help on the same? * * thanks, Sohil ___ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
[ANN] Riak CS 1.4.2 (and reorganized docs)
We're pleased to announce a new minor release of Riak CS, including both bug fixes and minor enhancements. Highlights include addressing a stats bug, fixing downloads of objects written via Riak CS prior to 1.3, and improvements to garbage collection to minimize cluster impact when objects are deleted. We've also significantly reorganized the Riak CS content on docs.basho.com to differentiate operational from development concerns, mirroring recent changes to Riak documentation. Release notes: http://docs.basho.com/riakcs/latest/cookbooks/Riak-CS-Release-Notes/ Downloads: http://docs.basho.com/riakcs/latest/riakcs-downloads/ Thanks. -John Daily Technical Evangelist, Basho ___ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
Re: distribution of data among riak cluster physical nodes
Responses inline. On Oct 11, 2013, at 7:10 PM, kzhang kzh...@wayfair.com wrote: I read the documentation again (http://docs.basho.com/riak/latest/dev/references/http/fetch-object/). r - (read quorum) how many replicas need to agree when retrieving the object (default is defined by the bucket) Not agree, necessarily, but how many need to respond before an answer is given to the client. pr - how many primary replicas need to be online when doing the read (default is defined by the bucket) Again, how many need to respond. basic_quorum - whether to return early in some failure cases (eg. when r=1 and you get 2 errors and a success basic_quorum=true would return an error) (default is defined by the bucket) notfound_ok - whether to treat notfounds as successful reads for the purposes of R (default is defined by the bucket) Correct. The various notfound_ok/basic_quorum/R combinations are captured in a table here: http://basho.com/riaks-config-behaviors-part-3/ If I have: r = 1 notfound_ok=true basic_quorum = true does the client get notfound after 1 reply (since notfound_ok=true and r = 1) or after 2 replies (since basic_quorum = true)? Client will get notfound after 1 reply. Or if I have: r = 1 notfound_ok=false basic_quorum = true the client gets notfound if the first two replies are notfound? if the first reply is found, the client gets found? if the first reply is notfound, the second is found, does the client get found, or have to wait for the third vnode (in my environment, N=3) to reply? notfound will be returned only if both servers return notfound, and the request will not wait for a 3rd server in any sequence of events. In the next setup: r = 1 notfound_ok=false basic_quorum = false only when all three replies are notfound, then the client gets notfound? otherwise, it is found. Correct. The last one: r = 1 notfound_ok=true basic_quorum = false which is the default. if the first reply is found, then client gets found. if the first reply is notfound, clients gets notfound. Correct. -John ___ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
Yokozuna: Riak Python client PB error with Solr stored boolean fields
I studied the problem I was having with using the Python client's
.fulltext_search(...) method and got it down to this - it seems that I get
an error when searching against Solr using the Python client's
.fulltext_search(...) method (using protocol buffers) whenever I have a *
stored* boolean field.
In my schema, I have:
field name=banned type=boolean indexed=true stored=true /
With that (or any named field of type boolean that is set to
stored=true) I receive the following stack trace:
http://pastebin.com/ejCixPEZ
In the error.log file on the server, I see the following repeated:
2013-10-15 01:21:17.480 [error] 0.2872.0@yz_pb_search:maybe_process:95
function_clause
[{yz_pb_search,to_binary,[false],[{file,src/yz_pb_search.erl},{line,154}]},{yz_pb_search,encode_field,2,[{file,src/yz_pb_search.erl},{line,152}]},{lists,foldl,3,[{file,lists.erl},{line,1197}]},{yz_pb_search,encode_doc,1,[{file,src/yz_pb_search.erl},{line,144}]},{yz_pb_search,'-maybe_process/3-lc$^0/1-0-',1,[{file,src/yz_pb_search.erl},{line,76}]},{yz_pb_search,maybe_process,3,[{file,src/yz_pb_search.erl},{line,76}]},{riak_api_pb_server,process_message,4,[{file,src/riak_api_pb_server.erl},{line,383}]},{riak_api_pb_server,connected,2,[{file,src/riak_api_pb_server.erl},{line,221}]}]
Does anyone have any insight? I'm not a Solr expert, so perhaps storing
boolean fields for retrieval is not a good idea? I know if I index but
don't store, I can still successfully search against a boolean value.
Thanks!
Dave
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Re: Memory Backend TTL doesn't work
Thank you!! I've got it!! :)
Then, if I started server with ring size 32, I need to change max_memory to
256(8192/32). Is it right?
Chan.
2013. 10. 14., 오후 9:35, Alex Moore amo...@basho.commailto:amo...@basho.com
작성:
Hi Chan,
Instead of:
{storage_backend, riak_kv_memory_backend},
{memory_backend, [
{max_memory, 8192},
{ttl, 1}
]},
Try:
{multi_backend_default, expiring_memory_backend},
{multi_backend, [
{expiring_memory_backend, riak_kv_memory_backend, [
{max_memory, 8192}, %% 8GB
{ttl, 1}
]}
]},
Also, for future reference, the max_memory field is in MB per vnode, so your
current setting is 8GB per vnode. Unless you have a ridiculous amount of RAM,
you might want to reduce that setting a bit :)
Thanks,
Alex
--
Alex Moore
Sent with Airmailhttp://airmailapp.info/tracking
On October 14, 2013 at 7:32:03 AM, 성동찬_Chan
(c...@kakao.commailto://c...@kakao.com) wrote:
Hi~!
I'm checking riak to use as a cache like memcached.
But I found some strange situation.
I set ttl like this to expire data, but failed.
-
{riak_kv, [
...
{storage_backend, riak_kv_memory_backend},
{memory_backend, [
{max_memory, 8192},
{ttl, 1}
]},
...
]},
-
TTL isn't supported on riak_kv_memory_backend?
I changed riak_kv_memory_backend to riak_kv_bitcask_backend, that's fine.
Thanks.
Chan.
___
riak-users mailing list
riak-users@lists.basho.commailto:riak-users@lists.basho.com
http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
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Re: Unit testing, Riak buckets
It depends on tests, but our test do allow us not to clean riak after tests at all. is it so bad? Just pick random bucket name and leave data there. Test environment could be nuked any time. Also as time goes more data stashes in riak and you could reveal some interesting facts: like misconfiguration of this environment or if the node crashes b/c of disk fullness how well your cluster tolerate this fault. -- View this message in context: http://riak-users.197444.n3.nabble.com/Unit-testing-Riak-buckets-tp4029451p4029464.html Sent from the Riak Users mailing list archive at Nabble.com. ___ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
