can you post the code On Mon, Apr 12, 2010 at 9:22 PM, Lee Parker <l...@socialagency.com> wrote:
> According to his docs, he says you need Cassandra >= 0.5.0. I guess it is > possible that the included thrift files are targeted at 0.6, but I don't see > the "batch_mutate" method which is part of 0.6. So I'm assuming that it > should work fine with 0.5.0. > > I have now changed some of those entries in the configs and I have not seen > the error in a while. So, it may have simply been that I was trying to do a > query which was too large for the configured buffer to handle. > > For the time being, I would like to stick with 0.5 as it is the "stable" > release and we are running this in a production environment. > > Lee Parker > > On Mon, Apr 12, 2010 at 10:45 AM, Jonathan Ellis <jbel...@gmail.com>wrote: > >> Pandra is probably targetting 0.6. >> >> If you're just starting, there's no reason for you not to use 0.6 over 0.5 >> now. >> >> On Mon, Apr 12, 2010 at 10:42 AM, Lee Parker <l...@socialagency.com> >> wrote: >> > I'm using the thrift client which is packaged with Pandra and my >> cassandra >> > version is 0.5.0 which is in the debian packages. How can i tell which >> > version of Thrift i'm using? >> > Lee >> > >> > On Mon, Apr 12, 2010 at 10:30 AM, Jonathan Ellis <jbel...@gmail.com> >> wrote: >> >> >> >> Then you're probably using a client incompatible with the server >> >> version you're using. >> >> >> >> On Mon, Apr 12, 2010 at 10:24 AM, Lee Parker <l...@socialagency.com> >> wrote: >> >> > If the connections are being made by individual PHP processes running >> >> > from >> >> > the command line, they shouldn't be using the same connection. >> Should >> >> > my >> >> > code close the connections after each query and open a new one? >> >> > Here is the flow of what is happening when we get the error: >> >> > 1. Get a set of items from remote API >> >> > 2. Insert all of the items into the items CF. (usually anywhere from >> 2 - >> >> > 200 >> >> > items) >> >> > 3. Query the correct index for all entries within a particular time >> >> > frame >> >> > (which is determined by the timeframe of the results of step 1) >> >> > 4. Compare keys in index to keys of items inserted in step 2. >> >> > 5. Insert new index columns for items which aren't already in the >> index. >> >> > I am getting the "unknown result" error during step 3. >> >> > Lee >> >> > >> >> > On Mon, Apr 12, 2010 at 10:05 AM, Jonathan Ellis <jbel...@gmail.com> >> >> > wrote: >> >> >> >> >> >> unknown result means thrift is badly confused. You will get this >> when >> >> >> using the same thrift connection from multiple threads, for >> instance. >> >> >> >> >> >> On Mon, Apr 12, 2010 at 10:02 AM, Lee Parker <l...@socialagency.com> >> >> >> wrote: >> >> >> > I am a newbie with Cassandra. We are currently migrating a large >> >> >> > amount >> >> >> > of >> >> >> > data out of MySQL into Cassandra. I have two ColumnFamilies. One >> >> >> > contains >> >> >> > one row per item and each item has roughly 12 columns. These are >> >> >> > items >> >> >> > from >> >> >> > REST APIs like the Twitter API. Then I have a second ColumnFamily >> >> >> > with >> >> >> > very >> >> >> > large rows and TimeUUID column names which contain the key of the >> >> >> > items >> >> >> > in >> >> >> > the other ColumnFamily. So one ColumnFamily has lots of rows with >> a >> >> >> > low >> >> >> > number of columns per row, and the other has relatively few rows >> with >> >> >> > a >> >> >> > large (~500k) columns per row. >> >> >> > I am getting rather frequent errors with "unknown result" from >> >> >> > get_slice >> >> >> > and >> >> >> > multiget_slice calls from the index ColumnFamily. I am using >> Pandra >> >> >> > for >> >> >> > the >> >> >> > calls. I can see that this is a generic exception thrown by the >> >> >> > Cassandra >> >> >> > Thrift package when it doesn't know what else to say. Is there a >> way >> >> >> > to >> >> >> > actually see what the result was in a more raw form from the >> Thrift >> >> >> > protocol? >> >> >> > One thought I had on why this is happening is that my results >> might >> >> >> > be >> >> >> > larger than the configuration settings. Does anyone have any good >> >> >> > ideas >> >> >> > on >> >> >> > how to calculate what the ideal values of SlicedBufferSizeInKB >> >> >> > and ColumnIndexSizeInKB should be? If these are too low, would i >> get >> >> >> > a >> >> >> > more >> >> >> > descriptive error? >> >> >> > Lee Parker >> >> > >> >> > >> > >> > >> > >
