Abstract: Provided are a method, computer program product, and system for storing a data stream. A distributed library server is configured with a plurality of data servers. A data type is mapped to at least one of the plurality of data servers. A portion of a data stream containing data of the data type is selected. An object part including the portion of the data stream is generated, and the object part is stored at one of the data servers mapped to the data.

Abstract: On demand tracing of application code execution includes: during the execution of the application code, writing trace statements to a circular trace buffer (at a selected and potentially variable detail level); determining whether a pre-defined trigger event has occurred; in response to determining that the trigger event has occurred, outputting one or more trace statements in the circular trace buffer according to pre-defined trace parameters; determining whether a trigger end event has occurred; and in response to determining that the trigger end event has occurred, terminating the outputting of the trace statements. The trigger event and the trigger end event may be defined by names of application code variables, values for the variables, and operators to be used. The trigger end event may further be defined by a time duration for which trace statements are to be outputted, or a number of trace statements to be outputted.

Abstract: On demand tracing of application code execution includes: during the execution of the application code, writing trace statements to a circular trace buffer (at a selected and potentially variable detail level); determining whether a pre-defined trigger event has occurred; in response to determining that the trigger event has occurred, outputting one or more trace statements in the circular trace buffer according to pre-defined trace parameters; determining whether a trigger end event has occurred; and in response to determining that the trigger end event has occurred, terminating the outputting of the trace statements. The trigger event and the trigger end event may be defined by names of application code variables, values for the variables, and operators to be used. The trigger end event may further be defined by a time duration for which trace statements are to be outputted, or a number of trace statements to be outputted.

Abstract: Provided are techniques for receiving multiple data streams having different data formats. The multiple data streams are converted into an Extremely Large Complex Object (XLCO) file by forming multiple XLCO segments corresponding to the multiple data streams, wherein different data formats are stored in different XLCO segments, and wherein different XLCO segments are different sizes. The XLCO segments of the XLCO are stored in different physical file systems having different operating systems.