Adding upstream version 1.17.0.upstream/1.17.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

41 files changed, 10628 insertions, 95 deletions

diff --git a/libnetdata/Makefile.in b/libnetdata/Makefile.in
new file mode 100644
index 00000000..064637fe
--- /dev/null
+++ b/libnetdata/Makefile.in
@@ -0,0 +1,716 @@
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diff --git a/libnetdata/README.md b/libnetdata/README.md
index 9892d670..8610cfd1 100644
--- a/libnetdata/README.md
+++ b/libnetdata/README.md
@@ -1,8 +1,5 @@
 # libnetdata
 
-`libnetdata` is a collection of library code that is used by all netdata `C` programs.
+`libnetdata` is a collection of library code that is used by all Netdata `C` programs.
 
-
-
-
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
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diff --git a/libnetdata/adaptive_resortable_list/README.md b/libnetdata/adaptive_resortable_list/README.md
index ab0d7c5a..0bb99b81 100644
--- a/libnetdata/adaptive_resortable_list/README.md
+++ b/libnetdata/adaptive_resortable_list/README.md
@@ -1,10 +1,9 @@
-
 # Adaptive Re-sortable List (ARL)
 
-This library allows netdata to read a series of `name - value` pairs
+This library allows Netdata to read a series of `name - value` pairs
 in the **fastest possible way**.
 
-ARLs are used all over netdata, as they are the most
+ARLs are used all over Netdata, as they are the most
 CPU utilization efficient way to process `/proc` files. They are used to
 process both vertical (csv like) and horizontal (one pair per line) `name - value` pairs.
 
@@ -19,9 +18,9 @@ linked list will adapt at the next iteration.
 
 During initialization (just once), the caller:
 
-- calls `arl_create()` to create the ARL
+-   calls `arl_create()` to create the ARL
 
-- calls `arl_expect()` multiple times to register the expected keywords
+-   calls `arl_expect()` multiple times to register the expected keywords
 
 The library will call the `processor()` function (given to
 `arl_create()`), for each expected keyword found.
@@ -34,16 +33,16 @@ Each `name` keyword may have a different `processor()` (by calling
 
 For each iteration through the data source, the caller:
 
-- calls `arl_begin()` to initiate a data collection iteration.
-   This is to be called just ONCE every time the source is re-evaluated.
+-   calls `arl_begin()` to initiate a data collection iteration.
+     This is to be called just ONCE every time the source is re-evaluated.
 
-- calls `arl_check()` for each entry read from the file.
+-   calls `arl_check()` for each entry read from the file.
 
 ### Cleanup
 
 When the caller exits:
 
-- calls `arl_free()` to destroy this and free all memory.
+-   calls `arl_free()` to destroy this and free all memory.
 
 ### Performance
 
@@ -68,22 +67,22 @@ In the following test we used alternative methods to process, **1M times**,
 a data source like `/proc/meminfo`, already tokenized, in memory,
 to extract the same number of expected metrics:
 
-test|code|string comparison|number parsing|duration
-:---:|:---:|:---:|:---:|:---:|
-1|if-else-if-else-if|`strcmp()`|`strtoull()`|4630.337 ms
-2|nested loops|inline `simple_hash()` and `strcmp()`|`strtoull()`|1597.481 ms
-3|nested loops|inline `simple_hash()` and `strcmp()`|`str2ull()`|923.523 ms
-4|if-else-if-else-if|inline `simple_hash()` and `strcmp()`|`strtoull()`| 854.574 ms
-5|if-else-if-else-if|statement expression `simple_hash()` and `strcmp()`|`strtoull()`|912.013 ms
-6|if-continue|inline `simple_hash()` and `strcmp()`|`strtoull()`|842.279 ms
-7|if-else-if-else-if|inline `simple_hash()` and `strcmp()`|`str2ull()`|602.837 ms
-8|ARL|ARL|`strtoull()`|350.360 ms
-9|ARL|ARL|`str2ull()`|157.237 ms
+|test|code|string comparison|number parsing|duration|
+|:--:|:--:|:---------------:|:------------:|:------:|
+|1|if-else-if-else-if|`strcmp()`|`strtoull()`|4630.337 ms|
+|2|nested loops|inline `simple_hash()` and `strcmp()`|`strtoull()`|1597.481 ms|
+|3|nested loops|inline `simple_hash()` and `strcmp()`|`str2ull()`|923.523 ms|
+|4|if-else-if-else-if|inline `simple_hash()` and `strcmp()`|`strtoull()`|854.574 ms|
+|5|if-else-if-else-if|statement expression `simple_hash()` and `strcmp()`|`strtoull()`|912.013 ms|
+|6|if-continue|inline `simple_hash()` and `strcmp()`|`strtoull()`|842.279 ms|
+|7|if-else-if-else-if|inline `simple_hash()` and `strcmp()`|`str2ull()`|602.837 ms|
+|8|ARL|ARL|`strtoull()`|350.360 ms|
+|9|ARL|ARL|`str2ull()`|157.237 ms|
 
 Compared to unoptimized code (test No 1: 4.6sec):
- 
- - before ARL netdata was using test No **7** with hashing and a custom `str2ull()` to achieve 602ms.
- - the current ARL implementation is test No **9** that needs only 157ms (29 times faster vs unoptimized code, about 4 times faster vs optimized code).
+
+-   before ARL Netdata was using test No **7** with hashing and a custom `str2ull()` to achieve 602ms.
+-   the current ARL implementation is test No **9** that needs only 157ms (29 times faster vs unoptimized code, about 4 times faster vs optimized code).
 
 [Check the source code of this test](../../tests/profile/benchmark-value-pairs.c).
 
@@ -92,4 +91,4 @@ Compared to unoptimized code (test No 1: 4.6sec):
 Do not use ARL if the a name/keyword may appear more than once in the
 source data. 
 
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fadaptive_resortable_list%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fadaptive_resortable_list%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
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diff --git a/libnetdata/avl/README.md b/libnetdata/avl/README.md
index c4c72ff4..6a96884a 100644
--- a/libnetdata/avl/README.md
+++ b/libnetdata/avl/README.md
@@ -9,4 +9,4 @@ use any memory allocations and their memory footprint is optimized
 
 In addition to the above, this version of AVL, provides versions using locks
 and traversal functions.
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Favl%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Favl%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
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diff --git a/libnetdata/buffer/README.md b/libnetdata/buffer/README.md
index 48072e96..c89889c2 100644
--- a/libnetdata/buffer/README.md
+++ b/libnetdata/buffer/README.md
@@ -9,4 +9,4 @@ is just a lookup (it does not traverse the string).
 
 Netdata uses `BUFFER`s for preparing web responses and buffering data to be sent upstream or
 to backend databases.
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fbuffer%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fbuffer%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/libnetdata/clocks/Makefile.in b/libnetdata/clocks/Makefile.in
new file mode 100644
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+	$(am__cd) $(top_srcdir) && \
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diff --git a/libnetdata/clocks/README.md b/libnetdata/clocks/README.md
index c4215a75..e4c424f3 100644
--- a/libnetdata/clocks/README.md
+++ b/libnetdata/clocks/README.md
@@ -1,2 +1 @@
-
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fclocks%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fclocks%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/libnetdata/clocks/clocks.c b/libnetdata/clocks/clocks.c
index f7d21717..161225a9 100644
--- a/libnetdata/clocks/clocks.c
+++ b/libnetdata/clocks/clocks.c
@@ -210,3 +210,68 @@ int sleep_usec(usec_t usec) {
     return ret;
 #endif
 }
+
+static inline collected_number uptime_from_boottime(void) {
+#ifdef CLOCK_BOOTTIME_IS_AVAILABLE
+    return now_boottime_usec() / 1000;
+#else
+    error("uptime cannot be read from CLOCK_BOOTTIME on this system.");
+    return 0;
+#endif
+}
+
+static procfile *read_proc_uptime_ff = NULL;
+static inline collected_number read_proc_uptime(char *filename) {
+    if(unlikely(!read_proc_uptime_ff)) {
+        read_proc_uptime_ff = procfile_open(filename, " \t", PROCFILE_FLAG_DEFAULT);
+        if(unlikely(!read_proc_uptime_ff)) return 0;
+    }
+
+    read_proc_uptime_ff = procfile_readall(read_proc_uptime_ff);
+    if(unlikely(!read_proc_uptime_ff)) return 0;
+
+    if(unlikely(procfile_lines(read_proc_uptime_ff) < 1)) {
+        error("/proc/uptime has no lines.");
+        return 0;
+    }
+    if(unlikely(procfile_linewords(read_proc_uptime_ff, 0) < 1)) {
+        error("/proc/uptime has less than 1 word in it.");
+        return 0;
+    }
+
+    return (collected_number)(strtold(procfile_lineword(read_proc_uptime_ff, 0, 0), NULL) * 1000.0);
+}
+
+inline collected_number uptime_msec(char *filename){
+    static int use_boottime = -1;
+
+    if(unlikely(use_boottime == -1)) {
+        collected_number uptime_boottime = uptime_from_boottime();
+        collected_number uptime_proc     = read_proc_uptime(filename);
+
+        long long delta = (long long)uptime_boottime - (long long)uptime_proc;
+        if(delta < 0) delta = -delta;
+
+        if(delta <= 1000 && uptime_boottime != 0) {
+            procfile_close(read_proc_uptime_ff);
+            info("Using now_boottime_usec() for uptime (dt is %lld ms)", delta);
+            use_boottime = 1;
+        }
+        else if(uptime_proc != 0) {
+            info("Using /proc/uptime for uptime (dt is %lld ms)", delta);
+            use_boottime = 0;
+        }
+        else {
+            error("Cannot find any way to read uptime on this system.");
+            return 1;
+        }
+    }
+
+    collected_number uptime;
+    if(use_boottime)
+        uptime = uptime_from_boottime();
+    else
+        uptime = read_proc_uptime(filename);
+
+    return uptime;
+}
diff --git a/libnetdata/clocks/clocks.h b/libnetdata/clocks/clocks.h
index 47aa148c..4af451d6 100644
--- a/libnetdata/clocks/clocks.h
+++ b/libnetdata/clocks/clocks.h
@@ -136,4 +136,6 @@ extern int sleep_usec(usec_t usec);
  */
 void test_clock_boottime(void);
 
+extern collected_number uptime_msec(char *filename);
+
 #endif /* NETDATA_CLOCKS_H */
diff --git a/libnetdata/config/Makefile.in b/libnetdata/config/Makefile.in
new file mode 100644
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@@ -0,0 +1,514 @@
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diff --git a/libnetdata/config/README.md b/libnetdata/config/README.md
index f0a27d95..51216b6d 100644
--- a/libnetdata/config/README.md
+++ b/libnetdata/config/README.md
@@ -1,6 +1,6 @@
-# netdata ini config files
+# Netdata ini config files
 
-Configuration files `netdata.conf` and `stream.conf` are netdata ini files.
+Configuration files `netdata.conf` and `stream.conf` are Netdata ini files.
 
 ## Motivation
 
@@ -17,9 +17,9 @@ developers and the users.
 
 So, we did this:
 
-1. No configuration is required to run netdata
-2. There are plenty of options to tweak
-3. There is minimal documentation (or no at all)
+1.  No configuration is required to run Netdata
+2.  There are plenty of options to tweak
+3.  There is minimal documentation (or no at all)
 
 ## Why this works?
 
@@ -33,11 +33,12 @@ In all places, in the code, there are both the `names` and their
 file, the default is used. The lookup is made using B-Trees and hashes
 (no string comparisons), so they are super fast. Also the `names` of the
 settings can be `my super duper setting that once set to yes, will turn the world upside down = no`
-- so goodbye to most of the documentation involved.
 
-Next, netdata can generate a valid configuration for the user to edit.
+-   so goodbye to most of the documentation involved.
+
+Next, Netdata can generate a valid configuration for the user to edit.
 No need to remember anything or copy and paste settings. Just get the
-configuration from the server (`/netdata.conf` on your netdata server),
+configuration from the server (`/netdata.conf` on your Netdata server),
 edit it and save it.
 
 Last, what about options you believe you have set, but you misspelled?
@@ -45,4 +46,4 @@ When you get the configuration file from the server, there will be a
 comment above all `name = value` pairs the server does not use.
 So you know that whatever you wrote there, is not used.
 
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fconfig%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fconfig%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/libnetdata/dictionary/Makefile.in b/libnetdata/dictionary/Makefile.in
new file mode 100644
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--- /dev/null
+++ b/libnetdata/dictionary/Makefile.in
@@ -0,0 +1,514 @@
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diff --git a/libnetdata/json/README.md b/libnetdata/json/README.md
index fd6cb0f3..e723cede 100644
--- a/libnetdata/json/README.md
+++ b/libnetdata/json/README.md
@@ -1,5 +1,5 @@
 # json
 
-`json` contains a parser for json strings, based on `jsmn` (https://github.com/zserge/jsmn), but case you have installed the JSON-C library, the installation script will prefer it, you can also force its use with `--enable-jsonc` in the compilation time.
+`json` contains a parser for json strings, based on `jsmn` (<https://github.com/zserge/jsmn>), but case you have installed the JSON-C library, the installation script will prefer it, you can also force its use with `--enable-jsonc` in the compilation time.
 
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fjson%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fjson%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/libnetdata/locks/Makefile.in b/libnetdata/locks/Makefile.in
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--- /dev/null
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@@ -0,0 +1,514 @@
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diff --git a/libnetdata/procfile/README.md b/libnetdata/procfile/README.md
index 7037dc4e..7487e6c6 100644
--- a/libnetdata/procfile/README.md
+++ b/libnetdata/procfile/README.md
@@ -1,4 +1,3 @@
-
 # PROCFILE
 
 procfile is a library for reading text data files (i.e `/proc` files) in the fastest possible way.
@@ -15,49 +14,49 @@ The library also supported quoted words (i.e. strings within of which the separa
 
 Initially the caller: 
 
-- calls `procfile_open()` to open the file and allocate the structures needed.
+-   calls `procfile_open()` to open the file and allocate the structures needed.
 
 ### Iterations
 
 For each iteration, the caller:
 
-- calls `procfile_readall()` to read updated contents.
-   This call also rewinds (`lseek()` to 0) before reading it.
+-   calls `procfile_readall()` to read updated contents.
+     This call also rewinds (`lseek()` to 0) before reading it.
+
+     For every file, a [BUFFER](../buffer/) is used that is automatically adjusted to fit
+     the entire file contents of the file. So the file is read with a single `read()` call
+     (providing atomicity / consistency when the data are read from the kernel).
+
+     Once the data are read, 2 arrays of pointers are updated:
 
-   For every file, a [BUFFER](../buffer/) is used that is automatically adjusted to fit
-   the entire file contents of the file. So the file is read with a single `read()` call
-   (providing atomicity / consistency when the data are read from the kernel).
+    -   a `words` array, pointing to each word in the data read
+    -   a `lines` array, pointing to the first word for each line
 
-   Once the data are read, 2 arrays of pointers are updated:
+     This is highly optimized. Both arrays are automatically adjusted to
+     fit all contents and are updated in a single pass on the data.
 
-   - a `words` array, pointing to each word in the data read
-   - a `lines` array, pointing to the first word for each line
+     The library provides a number of macros:
 
-   This is highly optimized. Both arrays are automatically adjusted to
-   fit all contents and are updated in a single pass on the data.
-   
-   The library provides a number of macros:
-   
-   - `procfile_lines()` returns the # of lines read
-   - `procfile_linewords()` returns the # of words in the given line
-   - `procfile_word()` returns a pointer the given word #
-   - `procfile_line()` returns a pointer to the first word of the given line #
-   - `procfile_lineword()` returns a pointer to the given word # of the given line #
+    -   `procfile_lines()` returns the # of lines read
+    -   `procfile_linewords()` returns the # of words in the given line
+    -   `procfile_word()` returns a pointer the given word #
+    -   `procfile_line()` returns a pointer to the first word of the given line #
+    -   `procfile_lineword()` returns a pointer to the given word # of the given line #
 
 ### Cleanup
 
 When the caller exits:
 
-- calls `procfile_free()` to close the file and free all memory used.
+-   calls `procfile_free()` to close the file and free all memory used.
 
 ### Performance
 
-- a **raspberry Pi 1** (the oldest single core one) can process 5.000+ `/proc` files per second.
-- a **J1900 Celeron** processor can process 23.000+ `/proc` files per second per core.
+-   a **raspberry Pi 1** (the oldest single core one) can process 5.000+ `/proc` files per second.
+-   a **J1900 Celeron** processor can process 23.000+ `/proc` files per second per core.
 
 To achieve this kind of performance, the library tries to work in batches so that the code
 and the data are inside the processor's caches.
 
-This library is extensively used in netdata and its plugins.
+This library is extensively used in Netdata and its plugins.
 
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fprocfile%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fprocfile%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/libnetdata/simple_pattern/Makefile.in b/libnetdata/simple_pattern/Makefile.in
new file mode 100644
index 00000000..dfc92086
--- /dev/null
+++ b/libnetdata/simple_pattern/Makefile.in
@@ -0,0 +1,514 @@
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diff --git a/libnetdata/simple_pattern/README.md b/libnetdata/simple_pattern/README.md
index 79a71316..53ed947e 100644
--- a/libnetdata/simple_pattern/README.md
+++ b/libnetdata/simple_pattern/README.md
@@ -1,9 +1,9 @@
-## netdata simple patterns
+## Netdata simple patterns
 
 Unix prefers regular expressions. But they are just too hard, too cryptic
 to use, write and understand.
 
-So, netdata supports **simple patterns**.
+So, Netdata supports **simple patterns**.
 
 Simple patterns are a space separated list of words, that can have `*`
 as a wildcard. Each world may use any number of `*`. Simple patterns
@@ -16,7 +16,7 @@ Simple patterns are quite powerful: `pattern = *foobar* !foo* !*bar *`
 matches everything containing `foobar`, except strings that start
 with `foo` or end with `bar`.
 
-You can use the netdata command line to check simple patterns,
+You can use the Netdata command line to check simple patterns,
 like this:
 
 ```sh
@@ -30,9 +30,8 @@ RESULT: NOT MATCHED - pattern '*foobar* !foo* !*bar *' does not match 'hello wor
 RESULT: MATCHED - pattern '*foobar* !foo* !*bar *' matches 'hello world foobar'
 ```
 
-netdata stops processing to the first positive or negative match
+Netdata stops processing to the first positive or negative match
 (left to right). If it is not matched by either positive or negative
 patterns, it is denied at the end.
 
-
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fsimple_pattern%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fsimple_pattern%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
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diff --git a/libnetdata/socket/README.md b/libnetdata/socket/README.md
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--- a/libnetdata/socket/README.md
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@@ -1,2 +1 @@
-
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+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fsocket%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
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diff --git a/libnetdata/storage_number/README.md b/libnetdata/storage_number/README.md
index 5c2c0b07..9f6c08e0 100644
--- a/libnetdata/storage_number/README.md
+++ b/libnetdata/storage_number/README.md
@@ -1,4 +1,4 @@
-# netdata storage number
+# Netdata storage number
 
 Although `netdata` does all its calculations using `long double`, it stores all values using
 a **custom-made 32-bit number**.
@@ -9,4 +9,4 @@ have less decimal precision) and 3 bits for flags.
 
 This provides an extremely optimized memory footprint with just 0.0001% max accuracy loss.
 
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fstorage_number%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fstorage_number%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
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diff --git a/libnetdata/threads/README.md b/libnetdata/threads/README.md
index 9f98ba16..478c746e 100644
--- a/libnetdata/threads/README.md
+++ b/libnetdata/threads/README.md
@@ -1,2 +1 @@
-
-[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fthreads%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)]()
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Fthreads%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
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+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu libnetdata/url/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
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+	esac;
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
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+	    test -f "$(distdir)/$$file" \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+maintainer-clean-generic:
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+maintainer-clean: maintainer-clean-am
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+	html-am info info-am install install-am install-data \
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+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/libnetdata/url/README.md b/libnetdata/url/README.md
index 7562ffb7..2f44d0e9 100644
--- a/libnetdata/url/README.md
+++ b/libnetdata/url/README.md
@@ -1,2 +1 @@
-
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+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Flibnetdata%2Furl%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)