diff --git a/README.md b/README.md
index 8e9d6ab..27ab954 100644
--- a/README.md
+++ b/README.md
@@ -42,3 +42,4 @@ A curated collections of Nextflow implementation patterns
 * [Optional input](docs/optional-input.adoc)
 * [Optional output](docs/optional-output.adoc)
 * [Process when empty](docs/process-when-empty.adoc)
+* [Process when another process fails](docs/process-when-another-process-fails.adoc)
\ No newline at end of file
diff --git a/docs/index.adoc b/docs/index.adoc
index 23e12ce..6d2d984 100644
--- a/docs/index.adoc
+++ b/docs/index.adoc
@@ -60,5 +60,6 @@ include::feedback-loop.adoc[]
 include::optional-input.adoc[]
 include::optional-output.adoc[]
 include::process-when-empty.adoc[]
+include::process-when-another-process-fails.adoc[]
 :leveloffset: -2
 
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 <style>
 table.CodeRay { display: block; overflow-x: auto; }
@@ -446,7 +519,7 @@
 </head>
 <body class="article toc2 toc-left">
 <div id="header">
-<h1>Nextflow Patterns <span class="image right Nextflow Logo"><img src="https://www.nextflow.io/img/nextflow2014_no-bg.png" alt="Logo" width="300" height="100"></span></h1>
+<h1>Nextflow Patterns <span class="image Nextflow Logo" style="float: right"><img src="https://www.nextflow.io/img/nextflow2014_no-bg.png" alt="Logo" width="300" height="100"></span></h1>
 <div id="toc" class="toc2">
 <div id="toctitle">Table of Contents</div>
 <ul class="sectlevel1">
@@ -495,6 +568,7 @@ <h1>Nextflow Patterns <span class="image right Nextflow Logo"><img src="https://
 <li><a href="#_optional_input">6.5. Optional input</a></li>
 <li><a href="#_optional_output">6.6. Optional output</a></li>
 <li><a href="#_execute_when_empty">6.7. Execute when empty</a></li>
+<li><a href="#_execute_when_another_process_fails">6.8. Execute when another process fails</a></li>
 </ul>
 </li>
 </ul>
@@ -918,7 +992,7 @@ <h4 id="_code_6"><a class="link" href="#_code_6">2.5.3. Code</a></h4>
 <div class="paragraph">
 <p>Given the file <code>index.csv</code> with the following content:</p>
 </div>
-<table class="tableblock frame-all grid-all stretch">
+<table class="tableblock frame-all grid-all spread">
 <colgroup>
 <col style="width: 33.3333%;">
 <col style="width: 33.3333%;">
@@ -2597,98 +2671,194 @@ <h4 id="_run_it_26"><a class="link" href="#_run_it_26">6.7.4. Run it</a></h4>
 </div>
 </div>
 </div>
+<div class="sect2">
+<h3 id="_execute_when_another_process_fails"><a class="link" href="#_execute_when_another_process_fails">6.8. Execute when another process fails</a></h3>
+<div class="sect3">
+<h4 id="_problem_24"><a class="link" href="#_problem_24">6.8.1. Problem</a></h4>
+<div class="paragraph">
+<p>You need to execute a process if another process fails.</p>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_solution_24"><a class="link" href="#_solution_24">6.8.2. Solution</a></h4>
+<div class="paragraph">
+<p>Use the <a href="https://www.nextflow.io/docs/latest/process.html#output-env">env</a> qualifier
+to capture the exit status of the process. <code>set +e</code> prevents the script from exiting
+immediately if the command exits with a non-zero status.</p>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_example_3"><a class="link" href="#_example_3">6.8.3. Example</a></h4>
+<div class="listingblock">
+<div class="content">
+<pre class="CodeRay highlight nowrap"><code data-lang="nextflow"><table class="CodeRay"><tr>
+  <td class="line-numbers"><pre>1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+</pre></td>
+  <td class="code"><pre>process foo {
+
+  output:
+  env PROCESS_FOO_FAILED into process_foo_failed
+
+  script:
+  &quot;&quot;&quot;
+  set +e
+  PROCESS_FOO_FAILED=0
+  trap 'PROCESS_FOO_FAILED=1' ERR
+  cat thisfiledoesnotexist.txt
+  &quot;&quot;&quot;
+}
+
+process bar {
+  input:
+  val x from process_foo_failed
+
+  when:
+  x==&quot;1&quot;
+
+  script:
+  &quot;&quot;&quot;
+  echo $x
+  &quot;&quot;&quot;
+}</pre></td>
+</tr></table></code></pre>
+</div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_run_it_27"><a class="link" href="#_run_it_27">6.8.4. Run it</a></h4>
+<div class="paragraph">
+<p>Use the the following command to execute the example:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="CodeRay highlight"><code>nextflow run patterns/process-when-another-process-fails.nf</code></pre>
+</div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_dynamic_computing_resources"><a class="link" href="#_dynamic_computing_resources">6.8.5. Dynamic computing resources</a></h4>
+<div class="paragraph">
+<p>Use <code>set +e</code> only for the last task attempt if the process <code>foo</code> implements
+dynamic directives to control the computing resources requested in case of
+a process failure.</p>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_code_23"><a class="link" href="#_code_23">6.8.6. Code</a></h4>
+<div class="listingblock">
+<div class="content">
+<pre class="CodeRay highlight nowrap"><code data-lang="nextflow"><table class="CodeRay"><tr>
+  <td class="line-numbers"><pre>1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33
+</pre></td>
+  <td class="code"><pre>process foo {
+
+  memory { 1.GB * task.attempt }
+  maxRetries 2
+  errorStrategy 'retry'
+
+  output:
+  env PROCESS_FOO_FAILED into process_foo_failed
+
+  script:
+  &quot;&quot;&quot;
+  if [ ${task.attempt} = ${task.maxRetries + 1 } ]; then
+    set +e
+  fi
+
+  PROCESS_FOO_FAILED=0
+  trap 'PROCESS_FOO_FAILED=1' ERR
+  cat thisfiledoesnotexist.txt
+  &quot;&quot;&quot;
+}
+
+process bar {
+  input:
+  val x from process_foo_failed
+
+  when:
+  x==&quot;1&quot;
+
+  script:
+  &quot;&quot;&quot;
+  echo $x
+  &quot;&quot;&quot;
+}</pre></td>
+</tr></table></code></pre>
+</div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_run_it_28"><a class="link" href="#_run_it_28">6.8.7. Run it</a></h4>
+<div class="paragraph">
+<p>Use the the following command to execute the example:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="CodeRay highlight"><code>nextflow run patterns/process-when-another-process-fails2.nf</code></pre>
+</div>
+</div>
+</div>
+</div>
 </div>
 </div>
 </div>
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diff --git a/docs/process-when-another-process-fails.adoc b/docs/process-when-another-process-fails.adoc
new file mode 100644
index 0000000..c500d35
--- /dev/null
+++ b/docs/process-when-another-process-fails.adoc
@@ -0,0 +1,104 @@
+= Execute when another process fails 
+
+== Problem 
+
+You need to execute a process if another process fails. 
+
+== Solution 
+
+Use the https://www.nextflow.io/docs/latest/process.html#output-env[env] qualifier
+to capture the exit status of the process. `set +e` prevents the script from exiting
+immediately if the command exits with a non-zero status.
+
+== Example 
+
+[source,nextflow,linenums,options="nowrap"]
+----
+process foo {
+
+  output:
+  env PROCESS_FOO_FAILED into process_foo_failed
+  
+  script:
+  """
+  set +e
+  PROCESS_FOO_FAILED=0
+  trap 'PROCESS_FOO_FAILED=1' ERR
+  cat thisfiledoesnotexist.txt
+  """
+}  
+
+process bar {
+  input: 
+  val x from process_foo_failed
+  
+  when:
+  x=="1"
+
+  script:
+  """
+  echo $x
+  """
+}
+----
+
+== Run it 
+
+Use the the following command to execute the example:
+
+```
+nextflow run patterns/process-when-another-process-fails.nf
+```
+
+== Dynamic computing resources
+
+Use `set +e` only for the last task attempt if the process `foo` implements
+dynamic directives to control the computing resources requested in case of 
+a process failure.
+
+== Code 
+
+[source,nextflow,linenums,options="nowrap"]
+----
+process foo {
+
+  memory { 1.GB * task.attempt }
+  maxRetries 2
+  errorStrategy 'retry'
+
+  output:
+  env PROCESS_FOO_FAILED into process_foo_failed
+  
+  script:
+  """
+  if [ ${task.attempt} = ${task.maxRetries + 1 } ]; then
+    set +e
+  fi
+
+  PROCESS_FOO_FAILED=0
+  trap 'PROCESS_FOO_FAILED=1' ERR
+  cat thisfiledoesnotexist.txt
+  """
+}  
+
+process bar {
+  input: 
+  val x from process_foo_failed
+  
+  when:
+  x=="1"
+
+  script:
+  """
+  echo $x
+  """
+}
+----
+
+== Run it 
+
+Use the the following command to execute the example:
+
+```
+nextflow run patterns/process-when-another-process-fails2.nf
+```
\ No newline at end of file
diff --git a/process-when-another-process-fails.nf b/process-when-another-process-fails.nf
new file mode 100644
index 0000000..f963d94
--- /dev/null
+++ b/process-when-another-process-fails.nf
@@ -0,0 +1,54 @@
+#!/usr/bin/env nextflow
+
+/*
+ * Copyright (c) 2020, Centre for Genomic Regulation (CRG).
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+ /*
+  * author Davide Albanese <davide.albanese@gmail.com> 
+  */
+
+process foo {
+
+  output:
+  env PROCESS_FOO_FAILED into process_foo_failed
+  
+  script:
+  """
+  set +e
+  PROCESS_FOO_FAILED=0
+  trap 'PROCESS_FOO_FAILED=1' ERR
+  cat thisfiledoesnotexist.txt
+  """
+}  
+
+process bar {
+  input: 
+  val x from process_foo_failed
+  
+  when:
+  x=="1"
+
+  script:
+  """
+  echo $x
+  """
+}
diff --git a/process-when-another-process-fails2.nf b/process-when-another-process-fails2.nf
new file mode 100644
index 0000000..3735f13
--- /dev/null
+++ b/process-when-another-process-fails2.nf
@@ -0,0 +1,61 @@
+#!/usr/bin/env nextflow
+
+/*
+ * Copyright (c) 2020, Centre for Genomic Regulation (CRG).
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+ /*
+  * author Davide Albanese <davide.albanese@gmail.com> 
+  */
+
+process foo {
+
+  memory { 1.GB * task.attempt }
+  maxRetries 2
+  errorStrategy 'retry'
+
+  output:
+  env PROCESS_FOO_FAILED into process_foo_failed
+  
+  script:
+  """
+  if [ ${task.attempt} = ${task.maxRetries + 1 } ]; then
+    set +e
+  fi
+
+  PROCESS_FOO_FAILED=0
+  trap 'PROCESS_FOO_FAILED=1' ERR
+  cat thisfiledoesnotexist.txt
+  """
+}  
+
+process bar {
+  input: 
+  val x from process_foo_failed
+  
+  when:
+  x=="1"
+
+  script:
+  """
+  echo $x
+  """
+}
