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Changes to open-file caching limits and uncached file unserialization.

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- Unserializing files that were previously kicked out of the open-file
  cache would cause them to be fopen'd with the original access
  permissions which is usually 'w' and causes truncation.  They
  are now opened in 'a' mode.  (addresses #780)

- Add 'max_files_in_cache' script option to manually set the maximum
  amount of opened files to keep cached.  Mainly this just helped
  to create a simple test case for the above change.

- Remove unused NO_HAVE_SETRLIMIT preprocessor switch.

- On systems that don't enforce a limit on number of files opened for
  the process, raise default max size of open-file cache from
  32 to 512.
This commit is contained in:
Jon Siwek 2012-05-03 13:13:58 -05:00
parent 8766a2e2fc
commit bbac44a6a4
12 changed files with 104 additions and 11 deletions
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2
src/NetVar.cc
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@ -167,6 +167,7 @@ TableVal* preserve_orig_addr;
TableVal* preserve_resp_addr;
TableVal* preserve_other_addr;
int max_files_in_cache;
double log_rotate_interval;
double log_max_size;
RecordType* rotate_info;
@ -257,6 +258,7 @@ void init_general_global_var()
state_dir = internal_val("state_dir")->AsStringVal();
state_write_delay = opt_internal_double("state_write_delay");
max_files_in_cache = opt_internal_int("max_files_in_cache");
log_rotate_interval = opt_internal_double("log_rotate_interval");
log_max_size = opt_internal_double("log_max_size");
rotate_info = internal_type("rotate_info")->AsRecordType();